Alabama

USDA-ARS National Soil Dynamics Lab., Auburn, AL

Erbach, Donald C., RL/Agr. Engr., USDA-ARS National Soil Dynamics Lab., Add'tl Info Phone: 334-844-4741 Fax: 334-887-8597 Email: derbach@eng.auburn.edu Mailing Address: 411 S. Donahue Drive, P. O. Box 3439, Auburn, AL 36831-3439. Research Interests: soil management, tillage, water management, soil-water-plant processes, crops

Bailey, Alvin C., Agr. Engr., USDA-ARS National Soil Dynamics Lab., Add'tl Info Phone: 334-844-4741 Fax: 334-887-8597 Email: abailey@eng.auburn.edu Mailing Address: 411 S. Donahue Drive, P. O. Box 3439, Auburn, AL 36831-3439. Research Interests: soil management, tillage, modeling

Edwards, Jr., James H., Soil Sci., USDA-ARS National Soil Dynamics Lab., Add'tl Info Phone: 334-844-4741 Fax: 334-887-8597 Email: jhedward@acesag.auburn.edu Mailing Address: 411 S. Donahue Drive, P. O. Box 3439, Auburn, AL 36831-3439. Research Interests: soil management, soil processes, water management, soil-water-plant processes, crops

Prior, Stephen A., Plant Physiologist, USDA-ARS National Soil Dynamics Lab., Add'tl Info Phone: 334-844-4741 Fax: 334-887-8597 Email: sprior@acesag.auburn.edu Mailing Address: 411 S. Donahue Drive, P. O. Box 3439, Auburn, AL 36831-3439. Research Interests: evapotranspiration, soil processes, soil-water-plant process, crops, climate change

Raper, Randy L., Agr. Engr., USDA-ARS National Soil Dynamics Lab., Add'tl Info Phone: 334-844-4741 Fax: 334-887-8597 Email: rlraper@eng.auburn.edu Mailing Address: 411 S. Donahue Drive, P. O. Box 3439, Auburn, AL 36831-3439. Research Interests: soil management, tillage, crops, systems, modeling

Reeves, D. Wayne, Res. Agron., USDA-ARS National Soil Dynamics Lab., Add'tl Info Phone: 334-844-4666 Fax: 334-887-8597 Email: wreeves@acesag.auburn.edu Mailing Address: 411 S. Donahue Drive, P. O. Box 3439, Auburn, AL 36831-3439. Research Interests: soil management, tillage, water management, crops, systems

Rogers, Jr., Hugo H., Plant Phys., USDA-ARS National Soil Dynamics Lab., Add'tl Info Phone: 334-844-4741 Fax: 334-887-8597 Email: hrogers@acesag.auburn.edu Mailing Address: 411 S. Donahue Drive, P. O. Box 3439, Auburn, AL 36831-3439. Research Interests: evapotranspiration, soil processes, soil-water-plant processes, crops, climate change

Way, Thomas R., Agr. Engr., USDA-ARS National Soil Dynamics Lab., Add'tl Info Phone: 334-844-4741 Fax: 334-887-8597 Email: trway@eng.auburn.edu Mailing Address: 411 S. Donahue Drive, P. O. Box 3439, Auburn, AL 36831-3439. Research Interests: soil management, tillage, crops, systems

Arizona

USDA-ARS Southwest Watershed Research, Tucson, AZ

Goodrich, David C., Res. Hydr./Engr., USDA-ARS Southwest Watershed Research, Add'tl Info Phone: 520-670-6381 ext. 162 Fax: 520-670-5550 Email: goodrich@tucson.ars.ag.gov Mailing Address: 2000 East Allen Road, Tucson, AZ 85719-1596. Research Interests: hydrology, runoff, infiltration, modeling, climate change

Heilman, Phillip, Economist, USDA-ARS Southwest Watershed Research, Add'tl Info Phone: 520-670-6381 ext. 148 Fax: 520-670-5550 Email: phil@tucson.ars.ag.gov Mailing Address: 2000 East Allen Road, Tucson, AZ 85719-1596. Research Interests: soil erosion, water quality, range

Keefer, Tim O., Hydrologist, USDA-ARS Southwest Watershed Research, Phone: 520-670-6381 ext. 158 Fax: 520-670-5550 Email: keefer@tucson.ars.ag.gov Mailing Address: 2000 East Allen Road, Tucson, AZ 85719-1596. Research Interests: hydrology, precipitation, evapotranspiration, soil moisture, climate change

Lane, Leonard J., Supv. Hydrologist, USDA-ARS Southwest Watershed Research, Add'tl Info Phone: 520-670-6381 ext. 163 Fax: 520-670-5550 Email: ljlane@tucson.ars.ag.gov Mailing Address: 2000 East Allen Road, Tucson, AZ 85719-1596. Research Interests: hydrology, soil erosion, range, systems, modeling

Masterson II, John, Computer Specialist, USDA-ARS Southwest Watershed Research, Add'tl Info Phone: 520-670-6381 ext. 150 Fax: 520-670-5550 Email: maz@tucson.ars.ag.gov Mailing Address: 2000 East Allen Road, Tucson, AZ 85719-1596. Research Interests: soil-water-plant processes, evapotranspiration, infiltration, hydrology

Nichols, Mary H., Hydro. Engr., USDA-ARS Southwest Watershed Research, Phone: 520-670-6381 ext. 161 Fax: 520-670-5550 Email: mnichols@tucson.ars.ag.gov Mailing Address: 2000 East Allen Road, Tucson, AZ 85719-1596. Research Interests: soil erosion, hydrology, precipitation

Qi, Jiaquo, Phys. Sci., USDA-ARS Southwest Watershed Research, Add'tl Info Phone: 520-670-6381 ext.151 Fax: 520-670-5550 Email: qi@tucson.ars.ag.gov Mailing Address: 2000 E. Allen Road, Tucson, AZ 85719-1596. Research Interests: hydrology, evapotranspiration, remote sensing , soil-water-plant processes, modeling

Simanton, John R., Hydrologist, USDA-ARS Southwest Watershed Research, Phone: 520-670-6381 ext. 170 Fax: 520-670-5550 Email: simu@tucson.ars.ag.gov Mailing Address: 2000 East Allen Road, Tucson, AZ 85719-1596. Research Interests: hydrology, soil erosion, sedimentation, soil-water-plant processes, range

Stone, Jeffry J., Hydrologist, USDA-ARS Southwest Watershed Research, Phone: 520-670-6381 ext. 146 Fax: 520-670-5550 Email: jeff@tucson.ars.ag.gov Mailing Address: 2000 East Allen Road, Tucson, AZ 85719-1596. Research Interests: hydrology, runoff, infiltration, water erosion, modeling

Yakowitz, Diana S., Systems Engr., USDA-ARS Southwest Watershed Research, Add'tl Info Phone: 520-670-6381 ext. 144 Fax: 520-670-5550 Email: diana@tucson.ars.ag.gov Mailing Address: 2000 East Allen Road, Tucson, AZ 85719-1596. Research Interests: systems, modeling, water quality, water management

USDA-ARS U.S. Water Conservation Lab., Phoenix, AZ

USDA-ARS Environmental & Plant Dynamics Res., Phoenix, AZ

Kimball, Bruce A., RL/Supv. Soil Sci., USDA-ARS U.S. Water Conservation Lab., Phone: 602-379-4356 Fax: 602-379-4355 Email: bkimball@uswcl.ars.ag.gov Mailing Address: 4331 East Broadway Road, Phoenix, AZ 85040-8832. Research Interests: climate change, evapotranspiration, soil-water-plant processes, modeling, crops

Barnes, Edward M., Agricultural Engineer, USDA-ARS U.S. Water Conservation Lab., Phone: 602-379-4356 Fax: 602-379-4355 Email: ebarnes@uswcl.ars.ag.gov Mailing Address: 4331 East Broadway Road, Phoenix, AZ 85040-8832. Research Interests: remote sensing, modeling, evapotranspiration, irrigation, systems

Clarke, Thomas R., Physical Scientist, USDA-ARS U.S. Water Conservation Lab., Phone: 602-379-4356 X251 Fax: 602-379-4355 Email: tclarke@uswcl.ars.ag.gov Mailing Address: 4331 East Broadway Road, Phoenix, AZ 85040-8832. Research Interests: remote sensing for farm management, thermal and optical radiometry

Coffelt, Terry A., Res. Genet., USDA-ARS U.S. Water Conservation Lab., Phone: 602-379-4356 Fax: 602-379-4355 Email: tcoffelt@uswcl.ars.ag.gov Mailing Address: 4331 East Broadway Road, Phoenix, AZ 85040-8832. Research Interests: crops, germplasm evaluation, germplasm enhancement, crop genetics, crop breeding

Dierig, David A., Res. Genet. Plants, USDA-ARS U.S. Water Conservation Lab., Phone: 602-379-4356 Fax: 602-379-4355 Email: ddierig@uswcl.ars.ag.gov Mailing Address: 4331 East Broadway Road, Phoenix, AZ 85040-8832. Research Interests: crops, germplasm collection, evaluation, improvement

Idso, Sherwood B., Res. Phys., USDA-ARS U.S. Water Conservation Lab., Phone: 602-379-4356 Fax: 602-379-4355 Email: sidso@uswcl.ars.ag.gov Mailing Address: 4331 East Broadway Road, Phoenix, AZ 85040-8832. Research Interests: evapotranspiration, remote sensing, soil-water-plant processes, climate change

LaMorte, Robert L., Civil Engineer, USDA-ARS U.S. Water Conservation Lab., Phone: 602-379-4356 Fax: 602-379-4355 Email: rlamorte@uswcl.ars.ag.gov Mailing Address: 4331 East Broadway Road, Phoenix, AZ 85040-8832.

Moran, M. Susan, Phys. Sci., USDA-ARS U.S. Water Conservation Lab., Add'tl Info Phone: 520-670-6381 ext.171 Fax: 520-670-5550 Email: moran@tucson.ars.ag.gov Mailing Address: 2000 East Allen Road, Tucson, AZ 85719-1596. Research Interests: hydrology, evapotranspiration, remote sensing, soil-water-plant processes, modeling

Nakayama, Francis S., Res. Chemist, USDA-ARS U.S. Water Conservation Lab., Phone: 602-379-4356 Fax: 602-379-4355 Email: fnakayam@uswcl.ars.ag.gov Mailing Address: 4331 East Broadway Road, Phoenix, AZ 85040-8832. Research Interests: crops, soil processes

Pinter, Jr., Paul J., Res. Biol., USDA-ARS U.S. Water Conservation Lab., Phone: 602-379-4356 Fax: 602-379-4355 Email: ppinter@uswcl.ars.ag.gov Mailing Address: 4331 East Broadway Road, Phoenix, AZ 85040-8832. Research Interests: remote sensing, evapotranspiration, soil-water-plant processes, climate change

Wall, Gerald W., Plant Physiol., USDA-ARS U.S. Water Conservation Lab., Phone: 602-379-4356 Fax: 602-379-4355 Email: gwall@uswcl.ars.ag.gov Mailing Address: 4331 East Broadway Road, Phoenix, AZ 85040-8832. Research Interests: global change, ecophysiology, climate change, modeling, soil-water-plant processes

USDA-ARS Irrigation Water Quality Research, Phoenix, AZ

Clemmens, Bert, RL/Res. Hydr./Engr., USDA-ARS U.S. Water Conservation Lab., Add'tl Info Phone: 602-379-4356 x. 269 Fax: 602-379-4355 Email: bclemmen@uswcl.ars.ag.gov Mailing Address: 4331 East Broadway Road, Phoenix, AZ 85040-8832. Research Interests: irrigation, water management, hydraulic structures, modeling, systems

Adamsen, Floyd J., Soil Sci., USDA-ARS U.S. Water Conservation Lab., Phone: 602-379-4356 Fax: 602-379-4355 Email: fadamsen@uswcl.ars.ag.gov Mailing Address: 4331 East Broadway Road, Phoenix, AZ 85040-8832. Research Interests: fertility, ground water quality, soil-water-plant processes, crops

Bautista, Eduardo, Agr. Engr., USDA-ARS U.S. Water Conservation Lab., Phone: 602-379-4356 Fax: 602-379-4355 Email: ebautist@uswcl.ars.ag.gov Mailing Address: 4331 East Broadway Road, Phoenix, AZ 85040-8832. Research Interests: irrigation, hydraulic structures, systems, modeling

Bouwer, Herman, Res. Hydr./Engr., USDA-ARS U.S. Water Conservation Lab., Phone: 602-379-4356 Fax: 602-379-4355 Email: hbouwer@uswcl.ars.ag.gov Mailing Address: 4331 East Broadway Road, Phoenix, AZ 85040-8832. Research Interests: groundwater recharge, water reuse, surface water-groundwater relations

Hunsaker, Douglas J., Agr. Engr., USDA-ARS U.S. Water Conservation Lab., Phone: 602-379-4356 Fax: 602-379-4355 Email: dhunsake@uswcl.ars.ag.gov Mailing Address: 4331 East Broadway Road, Phoenix, AZ 85040-8832. Research Interests: evapotranspiration, soil moisture, water management, irrigation, crops

Replogle, John A., Res. Hydr./Engr., USDA-ARS U.S. Water Conservation Lab., Phone: 602-379-4356 Fax: 602-379-4355 Email: jreplogl@uswcl.ars.ag.gov Mailing Address: 4331 East Broadway Road, Phoenix, AZ 85040-8832. Research Interests: water management, irrigation, hydraulic structures

Strelkoff, Theodor S., Res. Hydr. Engr., USDA-ARS U.S. Water Conservation Lab., Phone: 602-379-4356 Fax: 602-379-4355 Email: fstrelko@uswcl.ars.ag.gov Mailing Address: 4331 East Broadway Road, Phoenix, AZ 85040-8832. Research Interests: surface irrigation, water management, open-channel modeling, infiltration

Wahlin, Brian T., Civil Engineer, USDA-ARS U.S. Water Conservation Lab., Phone: 602-379-4356 Fax: 602-379-4355 Email: bwahlin@uswcl.ars.ag.gov Mailing Address: 4331 East Broadway Road, Phoenix, AZ 85040-8832. Research Interests: flow measurement in open channels and pipelines for irrigation

Arkansas

USDA-ARS Dale Bumpers Small Farms Res Ctr, Booneville, AR

Brauer, David K., Plant Physiologist, USDA-ARS Dale Bumpers Small Farms Res Ctr, Phone: 501-675-3834 x239 Fax: 501-675-2940 Email: dbrauer@spa.ars.usda.gov Mailing Address: 6883 S. State Hwy 23, Booneville, AR 72927-9214.

Aiken, Glen, Research Agronomist, USDA-ARS Dale Bumpers Small Farms Res Ctr, Phone: 501-675-3834 x225 Fax: 501-675-2940 Email: gaiken@spa.ars.usda.gov Mailing Address: 6883 S. State Hwy 23, Booneville, AR 72927-9214. Research Interests: grazing management, pasture ecology

Burke, Joan, Research Animal Scientist, USDA-ARS Dale Bumpers Small Farms Res Ctr, Phone: 501-675-3834 x227 Fax: 501-675-2940 Email: jmburke@spa.ars.usda.gov Mailing Address: 6883 S. State Hwy 23, Booneville, AR 72927-9214. Research Interests: Reproduction and nutrition of grazing livestock

Burner, David, Research Agronomist, USDA-ARS Dale Bumpers Small Farms Res Ctr, Phone: 501-675-3834 x231 Fax: 501-675-2940 Email: dburner@spa.ars.usda.gov Mailing Address: 6883 S. State Hwy 23, Booneville, AR 72927-9214. Research Interests: Agronomic aspects of agroforestry systems

Meisner, James R., Agronomist, USDA-ARS Dale Bumpers Small Farms Res Ctr, Phone: 501-675-3834 x230 Fax: 501-675-2940 Mailing Address: 6883 S. State Hwy 23, Booneville, AR 72927-9214.

Pote, Dan, Soil Scientist, USDA-ARS Dale Bumpers Small Farms Res Ctr, Phone: 501-675-3834 x226 Fax: 501-675-2940 Email: dpote@spa.ars.usda.gov Mailing Address: 6883 S. State Hwy 23, Booneville, AR 72927-9214. Research Interests: soil quality, fertility, erosion and runoff losses

USDA-ARS Poultry Production & Product Safety Res, Fayetteville, AR

Balog, Janice M., Poultry Physiologist, USDA-ARS Poultry Production & Product Safety Res, Add'tl Info Phone: 501-575-2654 Fax: 501-575-7465 Email: jbalog@comp.uark.edu Mailing Address: University of Arkansas, Plant Sciences, Rm. 115, Agronomy Department, Fayetteville, AR 72701.

Huff, Gerry R., Microbiologist, USDA-ARS Poultry Production & Product Safety Res, Add'tl Info Phone: 501-575-2654 Fax: 501-575-7465 Email: grhuff@comp.uark.edu Mailing Address: University of Arkansas, Plant Sciences, Rm. 115, Agronomy Department, Fayetteville, AR 72701.

Huff, William E., Poultry Physiologist, USDA-ARS Poultry Production & Product Safety Res, Add'tl Info Phone: 501-575-2654 Fax: 501-575-7465 Email: huff@comp.uark.edu Mailing Address: University of Arkansas, Plant Sciences, Rm. 115, Agronomy Department, Fayetteville, AR 72701.

Moore, Jr., Philip A., Soil Sci., USDA-ARS Poultry Production & Product Safety Res, Add'tl Info Phone: 501-575-5724 Fax: 501-575-7465 Email: philipm@comp.uark.edu Mailing Address: University of Arkansas, Plant Sciences, Rm. 115, Agronomy Department, Fayetteville, AR 72701. Research Interests: water quality, runoff, soil-water-plant processes, pasture, fertility

Rath, Narayan C., Poultry Physiologist, USDA-ARS Poultry Production & Product Safety Res, Add'tl Info Phone: 501-575-2654 Fax: 501-575-7465 Email: nrath@comp.uark.edu Mailing Address: University of Arkansas, Plant Sciences, Rm. 115, Agronomy Department, Fayetteville, AR 72701.

California

USDA-ARS Western Int. Cropping, Shafter, CA

McLaughlin, J. R., RL/Supv. Res. Ent., USDA-ARS Western Int. Cropping, Phone: 805-746-8001 Fax: 805-746-1619 Email: jmclaughlin@lightspeed.net Mailing Address: U.S. Cotton Research Station, 17053 N. Shafter Avenue, Shafter, CA 93263. Research Interests: entomology

Carter, L. M., Supv. Agr. Engr., USDA-ARS Western Int. Cropping, Phone: 805-746-8004 Fax: 805-746-1619 Email: lcarter@lightspeed.net Mailing Address: U.S. Cotton Research Station, 17053 N. Shafter Avenue, Shafter, CA 93263. Research Interests: agricultural engineering

Chesson, J. H., Agr. Engr., USDA-ARS Western Int. Cropping, Phone: 805-746-8005 Fax: 805-746-1619 Email: jhchesson@lightspeed.net Mailing Address: U.S. Cotton Research Station, 17053 N. Shafter Avenue, Shafter, CA 93263. Research Interests: engineering

DeTar, W. R., Agr. Engr., USDA-ARS Western Int. Cropping, Phone: 805-746-8011 Fax: 805-746-1619 Email: bdetar@lightspeed.net Mailing Address: U.S. Cotton Research Station, 17053 N. Shafter Avenue, Shafter, CA 93263.

Elliott, V. J., Res. Plant Pathol., USDA-ARS Western Int. Cropping, Phone: 805-746-8003 Fax: 805-746-1619 Email: vjelliott@lightspeed.net Mailing Address: U.S. Cotton Research Station, 17053 N. Shafter Avenue, Shafter, CA 93263.

Maas, S. J., Plant Physiol., USDA-ARS Western Int. Cropping, Phone: 805-746-8002 Fax: 805-746-1619 Email: sjmaas@lightspeed.net Mailing Address: U.S. Cotton Research Station, 17053 N. Shafter Avenue, Shafter, CA 93263.

USDA-ARS U.S. Salinity Lab., Riverside, CA

USDA-ARS Plant Science Research, Riverside, CA

Shannon, Michael C., Director/RL/Plant Geneticist, USDA-ARS Plant Science Research, Add'tl Info Phone: 909-369-4815 Fax: 909-369-4960 Email: mshannon@ussl.ars.usda.gov Mailing Address: U.S. Salinity Lab., 450 W. Big Springs Road, Riverside, CA 92507-4617. Research Interests: salinity, water quality, crops, soil-water-plant processes, systems

Dalton, Frank N., Soil Sci., USDA-ARS Plant Science Research, Phone: 909-369-4848 Fax: 909-342-4963 Email: fdalton@ussl.ars.usda.gov Mailing Address: U.S. Salinity Lab., 450 W. Big Springs Road, Riverside, CA 92507-4617. Research Interests: salinity, soil-water-plant processes, evapotranspiration

Donovan, Terry J., Agronomist, USDA-ARS Plant Science Research, Phone: 909-369-4841 Fax: 909-342-4963 Email: tdonovan@ussl.ars.usda.gov Mailing Address: U.S. Salinity Lab., 450 W. Big Springs Road, Riverside, CA 92507-4617. Research Interests: salinity, fertility, tillage

Grieve, Catherine M., Plant Physiol., USDA-ARS Plant Science Research, Phone: 909-369-4836 Fax: 909-342-4963 Email: cgrieve@ussl.ars.usda.gov Mailing Address: U.S. Salinity Lab., 450 W. Big Springs Road, Riverside, CA 92507-4617. Research Interests: fertility, salinity, water quality, soil-water-plant processes, crops

Layfield, Don A., Chemist, USDA-ARS Plant Science Research, Phone: 909-369-4837 Fax: 909-342-4963 Email: dlayfield@ussl.ars.usda.gov Mailing Address: U.S. Salinity Lab., 450 W. Big Springs Road, Riverside, CA 92507-4617. Research Interests: salinity, water quality

Poss, Jim A., Soil Sci., USDA-ARS Plant Science Research, Phone: 909-369-4863 Fax: 909-342-4963 Email: jposs@ussl.ars.usda.gov Mailing Address: U.S. Salinity Lab., 450 W. Big Springs Road, Riverside, CA 92507-4617. Research Interests: evapotranspiration, modeling, soil biology, soil-water-plant processes

Wilson, Clyde, Plant Physiol., USDA-ARS Plant Science Research, Phone: 909-369-4832 Fax: 909-342-4963 Email: cwilson@ussl.ars.usda.gov Mailing Address: U.S. Salinity Lab., 450 W. Big Springs Road, Riverside, CA 92507-4617. Research Interests: salinity, crops, soil-water-plant processes

Zeng, Linghe, Geneticist/Res. Affiliate, USDA-ARS Plant Science Research, Phone: 909-369-4823 Fax: 909-369-4963 Email: lzeng@ussl.ars.usda.gov Mailing Address: U.S. Salinity Lab., 450 W. Big Springs Road, Riverside, CA 92507-4617. Research Interests: crops, water quality, soil-water-plant processes

USDA-ARS Soil Physics & Pesticide Research, Riverside, CA

van Genuchten, Martinus T., RL/Soil Phys., USDA-ARS Soil Physics & Pesticide Research, Add'tl Info Phone: 909-369-4847 Fax: 909-342-4964 Email: rvang@ussl.ars.usda.gov Mailing Address: U.S. Salinity Lab., 450 W. Big Springs Road, Riverside, CA 92507-4617. Research Interests: hydrology, salinity, soil processes, modeling, ground water quality

Cliath, Mark M., Soil Sci., USDA-ARS Soil Physics & Pesticide Research, Add'tl Info Phone: 909-369-4806 Fax: 909-342-4964 Email: mcliath@ussl.ars.usda.gov Mailing Address: U.S. Salinity Lab., 450 W. Big Springs Road, Riverside, CA 92507-4617. Research Interests: evapotranspiration, ground water quality, surface water quality, meteorology

Papiernik, Sharon K., Soil Scientist, USDA-ARS Soil Physics & Pesticide Research, Add'tl Info Phone: 909-369-4846 Fax: 909-342-4964 Email: spapiernik@ussl.ars.usda.gov Mailing Address: U.S. Salinity Lab., Riverside, CA 92507-4617. Research Interests: water quality, soil processes, ground water quality

Shouse, Pete J., Soil Sci., USDA-ARS Soil Physics & Pesticide Research, Phone: 909-369-4849 Fax: 909-342-4964 Email: pshouse@ussl.ars.usda.gov Mailing Address: U.S. Salinity Lab., 450 W. Big Springs Road, Riverside, CA 92507-4617. Research Interests: infiltration, evapotranspiration, soil moisture, water quality, water management

Skaggs, Todd H., Soil Sci., USDA-ARS Soil Physics & Pesticide Research, Add'tl Info Phone: 909-369-4853 Fax: 909-342-4964 Email: tskaggs@ussl.ars.usda.gov Mailing Address: 450 W. Big Springs Road, Riverside, CA 92507-4617. Research Interests: modeling, transport processes, irrigation, drainage

Taylor, Chris D., Chemist, USDA-ARS Soil Physics & Pesticide Research, Phone: 909-369-4825 Fax: 909-342-4964 Email: ctaylor@ussl.ars.usda.gov Mailing Address: 450 W. Big Springs Road, Riverside, CA 92507-4617. Research Interests: soil processes, ground water quality, salinity

Wang, Dong, Res. Biophysical Scientist, USDA-ARS Soil Physics & Pesticide Research, Add'tl Info Phone: 909-369-4846 Fax: 909-342-4964 Email: dwang@ussl.ars.usda.gov Mailing Address: 450 W. Big Springs Road, Riverside, CA 92507-4617. Research Interests: salinity, modeling, hydrology

Yates, Scott R., Soil Sci., USDA-ARS Soil Physics & Pesticide Research, Add'tl Info Phone: 909-369-4803 Fax: 909-342-4964 Email: syates@ussl.ars.usda.gov Mailing Address: U.S. Salinity Lab., 450 W. Big Springs Road, Riverside, CA 92507-4617. Research Interests: water quality, modeling, hydrology, meteorology, soil processes

USDA-ARS Soil & Water Chemistry Research, Riverside, CA

Suarez, Don L., RL/Geologist, USDA-ARS Soil & Water Chemistry Research, Add'tl Info Phone: 909-369-4816 Fax: 909-342-4962 Email: dsuarez@ussl.ars.usda.gov Mailing Address: U.S. Salinity Lab., 450 W. Big Springs Road, Riverside, CA 92507-4617. Research Interests: salinity, water quality, modeling, water management, drainage

Corwin, Dennis L., Soil Sci., USDA-ARS Soil & Water Chemistry Research, Add'tl Info Phone: 909-369-4819 Fax: 909-342-4962 Email: dcorwin@ussl.ars.usda.gov Mailing Address: U.S. Salinity Lab., 450 W. Big Springs Road, Riverside, CA 92507-4617. Research Interests: ground water quality, modeling, salinity, gis

Goldberg, Sabine R., Soil Sci., USDA-ARS Soil & Water Chemistry Research, Add'tl Info Phone: 909-369-4820 Fax: 909-342-4962 Email: sgoldberg@ussl.ars.usda.gov Mailing Address: U.S. Salinity Lab., 450 W. Big Springs Road, Riverside, CA 92507-4617. Research Interests: salinity, water quality, modeling

Vaughan, Peter, Research Hydrologist, USDA-ARS Soil & Water Chemistry Research, Add'tl Info Phone: 909-369-4875 Fax: 909-342-4962 Email: pvaughan@ussl.ars.usda.gov Mailing Address: U.S. Salinity Lab., 450 W. Big Springs Road, Riverside, CA 92507-4617.

Wood, Jim D., Soil Sci., USDA-ARS Soil & Water Chemistry Research, Add'tl Info Phone: 909-369-4808 Fax: 909-342-4962 Email: jwood@ussl.ars.usda.gov Mailing Address: U.S. Salinity Lab., 450 W. Big Springs Road, Riverside, CA 92507-4617. Research Interests: water quality, salinity

USDA-ARS Water Management Research, Fresno, CA

Trout, Tom J., RL/Supv. Agr. Engr., USDA-ARS Water Management Research, Add'tl Info Phone: 559-453-3101 Fax: 559-453-3122 Email: ttrout@asrr.arsusda.gov Mailing Address: 2021 S. Peach Avenue, Fresno, California 93727. Research Interests: water management, irrigation, infiltration, soil erosion, soil-water-plant processes

Ajwa, Husein A., Soil Sci., USDA-ARS Water Management Research, Add'tl Info Phone: 559-453-3105 Fax: 559-453-3122 Email: Ajwa@pwa.ars.usda.gov Mailing Address: 2021 S. Peach Avenue, Fresno, California 93727. Research Interests: soil-water-plant processes, water management, ground water quality, salinity, fertility

Ayars, James E., Agricultural Engineer, USDA-ARS Water Management Research, Add'tl Info Phone: 559-453-3104 Fax: 559-453-3122 Email: Ayars@pwa.ars.usda.gov Mailing Address: 2021 S. Peach Avenue, Fresno, California 93727. Research Interests: water management, irrigation, drainage, soil-water-plant processes, salinity

Banuelos, Gary S., Soil Sci., USDA-ARS Water Management Research, Add'tl Info Phone: 559-453-3115 Fax: 559-453-3122 Email: banuelos@asrr.arsusda.gov Mailing Address: 2021 S. Peach Avenue, Fresno, California 93727. Research Interests: soil-water-plant processes, water management, crops, salinity, soil management

Bryla, David R., Research Agronomist, USDA-ARS Water Management Research, Add'tl Info Phone: 559-453-3106 Fax: 559-453-3122 Email: Bryla@pwa.ars.usda.gov Mailing Address: 2021 S. Peach Avenue, Fresno, California 93727.

Pflaum, Tom J., Chemist, USDA-ARS Water Management Research, Phone: 559-453-3116 Fax: 559-453-3122 Mailing Address: 2021 S. Peach Avenue, Fresno, California 93727. Research Interests: water management

Schoneman, Richard A., Agricultural Engineer, USDA-ARS Water Management Research, Phone: 559-453-3123 Fax: 559-453-3122 Email: Schonemn@asrr.arsusda.gov Mailing Address: 2021 S. Peach Avenue, Fresno, California 93727. Research Interests: water management, irrigation, drainage, groundwater quality

Wade, Donald L, Chemist, USDA-ARS Water Management Research, Phone: 559-453-3134 Fax: 559-453-3122 Email: Dwade@asrr.arsusda.gov Mailing Address: 2021 S. Peach Avenue, Fresno, California 93727.

Colorado

Central Great Plains Research, Akron, CO

Anderson, Randy L., RL/Agronomist, Central Great Plains Research, Phone: 970-345-2259 Fax: 970-345-2088 Email: rlander@lamar.colostate.edu Mailing Address: 40335 County Road GG, P. O. Box 400, Akron, CO 80722-0400. Research Interests: soil-water-plant processes, crops, systems

Aiken, Rob, Soil Scientist, Central Great Plains Research, Phone: 970-3450519 Fax: 970-345-2088 Email: aiken@gpsr.colostate.edu Mailing Address: 40335 County Road GG, P. O. Box 400, Akron, CO 80722-0400. Research Interests: evapotranspiration, sol biology, water quality, soil-water-plant processes, modeling

Benjamin, Joseph G., Soil Scientist, Central Great Plains Research, Add'tl Info Phone: 970-345-0518 Fax: 970-345-2088 Email: jbenjamn@lamar.colostate.edu Mailing Address: 40335 County Road GG, P. O. Box 400, Akron, CO 80722-0400. Research Interests: infiltration, soil water, tillage, soil management

Bowman, Rudy A., Soil Sci., Central Great Plains Research, Add'tl Info Phone: 970-345-0520 Fax: 970-345-2088 Email: rbowman@lamar.colostate.edu Mailing Address: 40335 County Road GG, P. O. Box 400, Akron, CO 80722-0400. Research Interests: soil erosion, tillage, fertility, soil processes, soil-water-plant processes

Nielsen, David C., Agronomist, Central Great Plains Research, Add'tl Info Phone: 970-345-0507 Fax: 970-345-2088 Email: dnielsen@lamar.colostate.edu Mailing Address: 40335 County Road GG, P. O. Box 400, Akron, CO 80722-0400. Research Interests: evapotranspiration, soil moisture, irrigation, soil-water-plant processes, crops

Vigil, Merle F., Soil Sci., Central Great Plains Research, Add'tl Info Phone: 970-345-0517 Fax: 970-345-2088 Email: mvigil@lamar.colostate.edu Mailing Address: 40335 County Road GG, P. O. Box 400, Akron, CO 80722-0400. Research Interests: fertility, soil biology, modeling, microbiology, tillage

Crops Research Lab., Fort Collins, CO

Great Plains Systems Research, Fort Collins, CO

Ahuja, Laj R., RL/Supv. Soil Sci., Great Plains Systems Research, Add'tl Info Phone: 970-490-8315 Fax: 970-490-8310 Email: ahuja@gpsr.colostate.edu Mailing Address: 301 South Howes Street, Rm. 353, P. O. Box E, Fort Collins, CO 80522-0470. Research Interests: Infiltration, soil moisture , tillage, water quality, modeling

Ascough, Jim C., Res. Hydr. Engr., Great Plains Systems Research, Add'tl Info Phone: 970-490-8371 Fax: 970-490-8310 Email: ascough@gpsr.colostate.edu Mailing Address: 301 South Howes Street, Rm. 353, P. O. Box E, Fort Collins, CO 80522-0470. Research Interests: hydrology, water erosion, surface water quality, ground water quality, systems

Bartling, Pat N. S., Range Sci., Great Plains Systems Research, Add'tl Info Phone: 970-490-8333 Fax: 970-490-8310 Email: pat@gpsr.colostate.edu Mailing Address: 301 South Howes Street, Rm. 353 (80, P. O. Box E, Fort Collins, CO 80522-0470. Research Interests: systems, modeling

Dailey, Bill J., Computer Sys. Anal., Great Plains Systems Research, Add'tl Info Phone: 970-490-8324 Fax: 970-490-8310 Email: dailey@gpsr.colostate.edu Mailing Address: 301 South Howes Street, Rm. 353 (80, P. O. Box E, Fort Collins, CO 80522-0470.

Dunn, Gale H., Soil Sci., Great Plains Systems Research, Add'tl Info Phone: 970-490-8320 Fax: 970-490-8310 Email: dunn@gpsr.colostate.edu Mailing Address: 301 South Howes Street, Rm. 353 (80, P. O. Box E, Fort Collins, CO 80522-0470. Research Interests: infiltration, soil moisture, tillage, ground water quality, modeling

Green, Timothy R., Agrl. Engr., Great Plains Systems Research, Add'tl Info Phone: 970-490-8315 Fax: 970-490-8310 Email: green@gpsr.colostate.edu Mailing Address: 301 South Howes Street, Rm. 353 (80, P. O. Box E, Fort Collins, CO 80522-0470.

McMaster, Greg S., Res. Agron., Great Plains Systems Research, Add'tl Info Phone: 970-490-8340 Fax: 970-490-8310 Email: greg@gpsr.colostate.edu Mailing Address: 301 South Howes Street, Rm. 353 (80, P. O. Box E, Fort Collins, CO 80522-0470. Research Interests: soil-water-plant processes, crops, systems, modeling, plant physiology

Rector, Harriet D., Mathematician, Great Plains Systems Research, Add'tl Info Phone: 970-490-8331 Fax: 970-490-8310 Email: rector@gpsr.colostate.edu Mailing Address: 301 South Howes Street, Rm. 353 (80, P. O. Box E, Fort Collins, CO 80522-0470. Research Interests: hydrology, GIS, water quality, systems, modeling

Rojas, Kenneth W., Hydraul. Comp. Spec., Great Plains Systems Research, Add'tl Info Phone: 970-490-8326 Fax: 970-490-8310 Email: kenr@gpsr.colostate.edu Mailing Address: 301 South Howes Street, Rm. 353, P. O. Box E, Fort Collins, CO 80522-0470. Research Interests: hydrology, water quality, systems, modeling

Shaffer, Marv J., Soil Sci., Great Plains Systems Research, Add'tl Info Phone: 970-490-8337 Fax: 970-490-8310 Email: shaffer@gpsr.colostate.edu Mailing Address: 301 South Howes Street, Rm. 353 (80, P. O. Box E, Fort Collins, CO 80522-0470. Research Interests: fertility, soil processes, ground water quality, systems, modeling

Weltz, Mark A., Range Scientist, Great Plains Systems Research, Add'tl Info Phone: 970-490-8323 Fax: 970-490-8310 Email: weltz@gpsr.colostate.edu Mailing Address: 301 South Howes Street, Rm. 353 (80, P. O. Box E, Fort Collins, CO 80522-0470. Research Interests: hydrology, precipitation, runoff, soil erosion, climate change

USDA-ARS-Soil-Plant-Nutrient Research, Fort Collins, CO

Follett, Ron F., RL/Supv. Soil Sci., USDA-ARS-Soil-Plant-Nutrient Research, Phone: 970-490-8220 Fax: 970-490-8213 Email: rfollett@lamar.colostate.edu Mailing Address: 301 South Howes Street, Rm. 407, P.O. Box E, Fort Collins, CO 80522-0470. Research Interests: soil biology, soil fertility, soil-water-plant processes, water quality

Delgado, Jorge A., Soil Sci., USDA-ARS-Soil-Plant-Nutrient Research, Add'tl Info Phone: 970-490-8260 Fax: 970-490-8213 Email: jdelgado@lamar.colostate.edu Mailing Address: 301 South Howes Street, Rm. 407, P.O. Box E, Fort Collins, CO 80522-0470. Research Interests: fertility, soil processes, ground water quality, modeling

Halvorson, Ardell D., Supv. Soil Sci., USDA-ARS-Soil-Plant-Nutrient Research, Phone: 970-490-8230 Fax: 970-490-8213 Email: adhalvor@lamar.colostate.edu Mailing Address: 301 South Howes Street, Rm. 407, P.O. Box E, Fort Collins, CO 80522-0470. Research Interests: precipitation, soil management, tillage, fertility, soil-water-plant processes

Hutchinson, Gordon L., Soil Sci., USDA-ARS-Soil-Plant-Nutrient Research, Phone: 970-490-8240 Fax: 970-490-8213 Email: glhutch@lamar.colostate.edu Mailing Address: 301 South Howes Street, Rm. 407, P.O. Box E, Fort Collins, CO 80522-0470. Research Interests: soil biology, soil-water-plant processes, modeling, climate change

Mosier, Arvin R., Res. Chemist, USDA-ARS-Soil-Plant-Nutrient Research, Phone: 970-490-8250 Fax: 970-490-8213 Email: amosier@lamar.colostate.edu Mailing Address: 301 South Howes Street, Rm. 407, P.O. Box E, Fort Collins, CO 80522-0470. Research Interests: fertility, soil processes, soil biology, soil-water-plant processes, range, climate change

Reule, Curtis A., Soil Sci., USDA-ARS-Soil-Plant-Nutrient Research, Phone: 970-490-8200 Fax: 970-490-8213 Email: creule@lamar.colostate.edu Mailing Address: 301 South Howes Street, Rm. 407, P.O. Box E, Fort Collins, CO 80522-0470. Research Interests: fertility, tillage, soil management, salinity

Frasier, Gary W., Res. Hydr./Engr., USDA-ARS Rangeland Resources Research, Phone: 970-498-4232 Fax: 970-482-2909 Email: gfrasier@lamar.colostate.edu Mailing Address: Crops Research Lab., 1701 Center Avenue, Fort Collins, CO 80526-2083. Research Interests: hydrology, runoff, infiltration, water erosion, range

LeCain, Daniel R., Plant Phys., USDA-ARS Rangeland Resources Research, Phone: 970-498-4217 Fax: 970-482-2909 Email: lecain@lamar.colostate.edu Mailing Address: Crops Research Lab., 1701 Center Avenue, Fort Collins, CO 80526. Research Interests: soil-water-plant processes, climate change, range

Reeder, Jean, Soil Scientist, USDA-ARS Rangeland Resources Research, Phone: 970-498-4236 Fax: 970-482-2909 Email: jdreeder@lamar.colostate.edu Mailing Address: Crops Research Lab., 1701 Center Avenue, Fort Collins, CO 80525. Research Interests: soil biology, fertility, soil processes, range

USDA-ARS Water Management Research, Fort Collins, CO

Heermann, Dale F., RL/Supv. Agr. Engr., USDA-ARS Water Management Research, Add'tl Info Phone: 970-491-8511 Fax: 970-491-8247 Email: heermann@wmu.aerc.colostate.edu Mailing Address: Colorado State University, Ag Engineering Research Ctr., Fort Collins, CO 80523-1325. Research Interests: water management, irrigation, water quality, systems, evapotranspiration

Bausch, Walter, Agr. Engr., USDA-ARS Water Management Research, Add'tl Info Phone: 970-491-8264 Fax: 970-491-8247 Email: bausch@wmu.aerc.colostate.edu Mailing Address: Colorado State University, Ag Engineering Research Ctr., Fort Collins, CO 80523-1325. Research Interests: remote sensing, evapotranspiration, water management, water quality, soil-water-plant processes

Buchleiter, Gerald W., Agr. Engr., USDA-ARS Water Management Research, Add'tl Info Phone: 970-491-8213 Fax: 970-491-8247 Email: buchleiter@wmu.aerc.colostate.edu Mailing Address: Colorado State University, Ag Engineering Research Ctr., Fort Collins, CO 80523-1325. Research Interests: evapotranspiration, systems, water management, water quality, irrigation

Duke, Harold R., Agr. Engr., USDA-ARS Water Management Research, Add'tl Info Phone: 970-491-8230 Fax: 970-491-8247 Email: duke@wmu.aerc.colostate.edu Mailing Address: Colorado State University, Ag Engineering Research Ctr., Fort Collins, CO 80523-1325. Research Interests: evapotranspiration, water management, irrigation, water erosion

Miskimins, Richard D., Mathematician, USDA-ARS Water Management Research, Add'tl Info Phone: 970-491-8226 Fax: 970-491-8247 Email: miskimins@wmu.aerc.colostate.edu Mailing Address: Colorado State University, Ag Engineering Research Ctr., Fort Collins, CO 80523-1325.

Stahl, Kris M., Statistician, USDA-ARS Water Management Research, Add'tl Info Phone: 970-491-8228 Fax: 970-491-8226 Email: stahl@wmu.aerc.colostate.edu Mailing Address: Colorado State University, Ag Engineering Research Ctr., Fort Collins, CO 80523-1325.

Wiles, Lori J., Plant Physiologist, USDA-ARS Water Management Research, Add'tl Info Phone: 970-491-8230 Fax: 970-491-8247 Email: wiles@wmu.aerc.colostate.edu Mailing Address: Colorado State University, Ag Engineering Research Ctr., Fort Collins, CO 80523-1325. Research Interests: Weed Ecologist

Florida

USDA-ARS Beef Cattle Research Unit, Brooksville, FL

Chase, Chadwick, RL/Res. Animal Scientist, USDA-ARS Beef Cattle Research Unit, Phone: 352-796-3385 Fax: 352-796-2930 Email: cccj@gnv.ifas.ufl.edu Mailing Address: 22271 Chinsegut Hill Road, Brooksville, FL 34601-4672.

Adams, Ervin L., Superintendent, USDA-ARS Beef Cattle Research Unit, Phone: 352-796-3385 Fax: 352-796-2930 Email: ela@icon.bkv.ufl.edu Mailing Address: 22271 Chinsegut Hill Road, Brooksville, FL 34601-4672.

Bowers, Edwin J., Biologist, USDA-ARS Beef Cattle Research Unit, Phone: 352-796-3385 Fax: 352-796-2930 Email: mjwi@icon.bkv.ufl.edu Mailing Address: 22271 Chinsegut Hill Road, Brooksville, FL 34601-4672.

Williams, Mimi J., Plant Physiologist, USDA-ARS Beef Cattle Research Unit, Phone: 352-796-3385 Fax: 352-796-2930 Email: mjwi@icon.bkv.ufl.edu Mailing Address: 22271 Chinsegut Hill Road, Brooksville, FL 34601-4672.

USDA-ARS-SHRS, Everglades Agro-Hydrology, Miami, FL

Savabi, M. Reza, Hydrologist, USDA-ARS-SHRS, Everglades Agro-Hydrology, Phone: 305-254-3633 Fax: 305-234-2540 Email: miare@ars-grin.gov Mailing Address: 13601 Old Cutler Road, Miami, FL 33158. Research Interests: infiltration, water erosion, evapotranspiration, soil moisture, modeling, water quality

USDA-ARS Crop Genetic & Environmental Res., Gainesville, FL

Allen, Jr., L. Hartwell, Soil Sci., USDA-ARS Crop Genetic & Environmental Res., Phone: 352-392-1821 Fax: 352-374-5852 Email: lhajr@gnv.ifas.ufl.edu Mailing Address: University of Florida, Agronomy Physiology Lab., Bg. 164, Mowry Drive, Gainesville, FL 32611-0621.

Vu, Joseph C., Plant Physiologist, USDA-ARS Crop Genetic & Environmental Res., Phone: 352-392-1821 x208 Fax: 352-374-5852 Email: aksch@gnv.ifas.ufl.edu Mailing Address: University of Florida, Agronomy Physiology Lab., Bg. 164, Mowry Drive, Gainesville, FL 32611-0621.

Georgia

USDA-ARS Forage and Turf Research Unit, Tifton, GA

Burton, Glenn W., RL/Research Geneticist, USDA-ARS Forage and Turf Research Unit, Phone: 912-386-3353 Fax: 912-391-3701 Mailing Address: P.O. Box 748, Tifton, GA 31793.

Gates, Roger N., Research Agronomist, USDA-ARS Forage and Turf Research Unit, Phone: 912-386-3353 Fax: 912-391-3701 Email: rngates@tifton.cpes.peachnet.edu Mailing Address: P.O. Box 748, Tifton, GA 31793.

Wilson, Jeffrey P., , USDA-ARS Forage and Turf Research Unit, Phone: 912-386-3353 Fax: 912-391-3701 Email: jwilson@tifton.cpes.peachnet.edu Mailing Address: P.O. Box 748, Tifton, GA 31793.

USDA-ARS Southeast Watershed Research Lab., Tifton, GA

Hubbard, Robert K., Soil Sci./Acting Res. Ldr., USDA-ARS Southeast Watershed Research Lab., Add'tl Info Phone: 912-386-3462 Fax: 912-386-7215 Email: hubbard@tifton.cpes.peachnet.edu Mailing Address: Coastal Plain Experiment Station, P. O. Box 946, Rainwater Road, Tifton, GA 31794. Research Interests: soil management, soil processes, ground water quality, surface water quality

Wauchope, Robert D., Res. Chemist, USDA-ARS Southeast Watershed Research Lab., Phone: 912-386-3892 Fax: 912-386-7225 Email: don@tifton.cpes.peachnet.edu Mailing Address: Coastal Plains Experiment Sta., P. O. Box 748, Tifton, GA 31793. Research Interests: water quality, runoff, modeling, soil processes, surface water quality

Bosch, David D., Res. Hydraulic Engr., USDA-ARS Southeast Watershed Research Lab., Add'tl Info Phone: 912-386-3899 Fax: 912-386-7215 Email: dbosch@tifton.cpes.peachnet.edu Mailing Address: Coastal Plain Experiment Station, P. O. Box 946, Rainwater Road, Tifton, GA 31794. Research Interests: hydrology, soil moisture, groundwater, water quality, modeling

Hargett, Leila M., Chemist, USDA-ARS Southeast Watershed Research Lab., Add'tl Info Phone: 912-386-3890 Fax: 912-386-7215 Email: leila@tifton.cpes.peachnet.edu Mailing Address: Coastal Plain Experiment Station, P. O. Box 946, Rainwater Road, Tifton, GA 31794. Research Interests: surface water quality, ground water quality

Lowrance, Richard R., Ecologist, USDA-ARS Southeast Watershed Research Lab., Add'tl Info Phone: 912-386-3894 Fax: 912-386-7215 Email: lorenz@tifton.cpes.peachnet.edu Mailing Address: Coastal Plain Experiment Station, P. O. Box 946, Rainwater Road, Tifton, GA 31794. Research Interests: soil processes, water quality, modeling

Marti, Luz R., Chemist, USDA-ARS Southeast Watershed Research Lab., Phone: 912-386-7069 Fax: 912-386-7215 Email: luzm@tifton.cpes.peachnet.edu Mailing Address: Coastal Plain Experiment Station, P. O. Box 946, Rainwater Road, Tifton, GA 31794. Research Interests: groundwater, ground water quality

Sheridan, Joe M., Res. Hydraulic Engr., USDA-ARS Southeast Watershed Research Lab., Add'tl Info Phone: 912-386-3296 Fax: 912-386-7215 Email: sheridan@tifton.cpes.peachnet.edu Mailing Address: Coastal Plain Experiment Station, P. O. Box 946, Rainwater Road, Tifton, GA 31794. Research Interests: hydrology, precipitation, runoff, soil erosion, modeling

Truman, Clinton C., Soil Sci., USDA-ARS Southeast Watershed Research Lab., Add'tl Info Phone: 912-386-7174 Fax: 912-386-7215 Email: ctswrl@tifton.cpes.peachnet.edu Mailing Address: Coastal Plain Experiment Station, P. O. Box 946, Rainwater Road, Tifton, GA 31794. Research Interests: runoff, soil moisture, soil erosion, soil processes, surface water quality

Williams, Randy G., Agr. Engr., USDA-ARS Southeast Watershed Research Lab., Add'tl Info Phone: 912-386-3895 Fax: 912-386-7215 Email: randy@tifton.cpes.peachnet.edu Mailing Address: Coastal Plain Experiment Station, P. O. Box 946, Rainwater Road, Tifton, GA 31794. Research Interests: hydrology, soil erosion, water quality, soil-water-plant processes, modeling

USDA-ARS J. P. Campbell, Sr. Natural Resource Ctr, Watkinsville, GA

Steiner, Jean L., RL/Supv. Soil Sci., USDA-ARS J. P. Campbell, Sr. Natural Resource Ctr, Add'tl Info Phone: 706-769-5631 ext.203 Fax: 706-769-8962 Email: jsteiner@arches.uga.edu Mailing Address: 1420 Experiment Station Road, Watkinsville, GA 30677. Research Interests: evapotranspiration, water management, soil-water-plant processes, systems

Dillard, Anthony L., Agr. Engr., USDA-ARS J. P. Campbell, Sr. Natural Resource Ctr, Phone: 706-769-5631 ext.220 Fax: 706-769-8962 Email: adillard@bae.uga.edu Mailing Address: 1420 Experiment Station Road, Watkinsville, GA 30677. Research Interests: hydrology, remote sensing, systems, modeling

Endale, Dinku, Agricultural Engineer, USDA-ARS J. P. Campbell, Sr. Natural Resource Ctr, Phone: 706-769-5631 ext.239 Fax: 706-769-8962 Email: dendale@arches.uga.edu Mailing Address: 1420 Experiment Station Road, Watkinsville, GA 30677. Research Interests: soil management, fertility, soil processes, ground water quality, pasture

Fisher, Dwight S, Rangeland Scientist, USDA-ARS J. P. Campbell, Sr. Natural Resource Ctr, Phone: 706-769-5631 ext.268 Fax: 706-769-8962 Email: dwight_fisher@scientist.com Mailing Address: 1420 Experiment Station Road, Watkinsville, GA 30677.

Franzluebbers, Alan J., Ecologist, USDA-ARS J. P. Campbell, Sr. Natural Resource Ctr, Add'tl Info Phone: 706-769-5631 ext.223 Fax: 706-769-8962 Email: afranz@arches.uga.edu Mailing Address: 1420 Experiment Station Road, Watkinsville, GA 30677-2373. Research Interests: microbial biomass, nutrient cycling, soil biology, soil management, infiltration, tillage

Harper, Lowry A., Soil Sci., USDA-ARS J. P. Campbell, Sr. Natural Resource Ctr, Add'tl Info Phone: 706-769-5631 ext.225 Fax: 706-769-8962 Email: lharper@arches.uga.edu Mailing Address: 1420 Experiment Station Road, Watkinsville, GA 30677. Research Interests: nutrient balance, gas emissions, gas transport, climate change, micrometeorology

Schomberg, Harry H., Ecologist, USDA-ARS J. P. Campbell, Sr. Natural Resource Ctr, Add'tl Info Phone: 706-769-5631 ext.222 Fax: 706-769-8962 Email: hschomberg@ag.gov Mailing Address: 1420 Experiment Station Road, Watkinsville, GA 30677. Research Interests: soil management, fertility, soil processes, modeling

Sharpe, Ronald R., Soil Sci., USDA-ARS J. P. Campbell, Sr. Natural Resource Ctr, Add'tl Info Phone: 706-769-5631 ext.227 Fax: 706-769-8962 Email: rsharpe@arches.uga.edu Mailing Address: 1420 Experiment Station Road, Watkinsville, GA 30677. Research Interests: soil moisture, fertility, water quality, climate change

Stark, Deborah A., Hydrologist, USDA-ARS J. P. Campbell, Sr. Natural Resource Ctr, Phone: 706-769-5631 ext.231 Fax: 706-769-8962 Email: dstark@arches.uga.edu Mailing Address: 1420 Experiment Station Road, Watkinsville, GA 30677.

Stuedeman, John A., Res. Animal Sci., USDA-ARS J. P. Campbell, Sr. Natural Resource Ctr, Add'tl Info Phone: 706-769-5631 ext.247 Fax: 706-769-8962 Email: jstuedem@arches.uga.edu Mailing Address: 1420 Experiment Station Road, P. O. Box 555, Watkinsville, GA 30677. Research Interests: infiltration, soil-water-plant processes, range, pasture, systems

USDA-ARS Pacific Basin Agricultural Res Ctr, Hilo, Hawaii

Quisenberry, Jerry, Laboratory Director, USDA-ARS Pacific Basin Agricultural Res Ctr, Phone: 808-959-4300 Fax: 808-959-4323 Email: jeq@aloha.net Mailing Address: PO Box 4459, Hilo, Hawaii.

Idaho

USDA-ARS Northwest Irrigation & Soils Research Lab, Kimberly, ID

Westermann, Dale T., Director/Soil Sci., USDA-ARS Northwest Irrigation & Soils Research Lab, Add'tl Info Phone: 208-423-6524 Fax: 208-423-6555 Email: dtw@kimberly.ars.pn.usbr.gov Mailing Address: 3793 North 3600 East, Kimberly, ID 83341. Research Interests: soil management, fertility, soil processes, water quality, soil-water-plant processes

Aase, J. Kris, Soil Scientist, USDA-ARS Northwest Irrigation & Soils Research Lab, Add'tl Info Phone: 208-423-6544 Fax: 208-423-6555 Email: aase@kimberly.ars.pn.usbr.gov Mailing Address: 3793 North 3600 East, Kimberly, ID 83341. Research Interests: evapotranspiration, soil moisture, remote sensing, soil management, tillage

Bjorneberg, David L., Agr. Eng., USDA-ARS Northwest Irrigation & Soils Research Lab, Add'tl Info Phone: 208-423-6521 Fax: 208-423-6555 Email: bdavid@kimberly.ars.pn.usbr.gov Mailing Address: 3793 North 3600 East, Kimberly, ID 83341. Research Interests: hydrology, soil erosion, tillage, irrigation, water quality

Entry, James A., Soil Microbiologist, USDA-ARS Northwest Irrigation & Soils Research Lab, Add'tl Info Phone: 208-423-6553 Fax: 208-423-6555 Email: Jentry@kimberly.ars.pn.usbr.gov Mailing Address: 3793 North 3600 East, Kimberly, ID 83341.

Fisher, H. Dale, Electron. Engr., USDA-ARS Northwest Irrigation & Soils Research Lab, Phone: 208-423-6536 Fax: 208-423-6555 Email: fisher@kimberly.ars.pn.usbr.gov Mailing Address: 3793 North 3600 East, Kimberly, ID 83341.

Kincaid, Dennis C., Agr. Engr., USDA-ARS Northwest Irrigation & Soils Research Lab, Add'tl Info Phone: 208-423-6503 Fax: 208-423-6555 Email: kincaid@kimberly.ars.pn.usbr.gov Mailing Address: 3793 North 3600 East, Kimberly, ID 83341. Research Interests: runoff, water erosion, water management, irrigation

Lehrsch, Gary A., Soil Sci., USDA-ARS Northwest Irrigation & Soils Research Lab, Add'tl Info Phone: 208-423-6508 Fax: 208-423-6555 Email: lehrsch@kimberly.ars.pn.usbr.gov Mailing Address: 3793 North 3600 East, Kimberly, ID 83341. Research Interests: infiltration, water erosion, soil management, water quality

Lentz, Roderick D., Soil Sci., USDA-ARS Northwest Irrigation & Soils Research Lab, Add'tl Info Phone: 208-423-6531 Fax: 208-423-6555 Email: lentz@kimberly.ars.pn.usbr.gov Mailing Address: 3793 North 3600 East, Kimberly, ID 83341. Research Interests: precipitation, runoff, soil erosion, soil management

Mayland, Henry F., Soil Sci., USDA-ARS Northwest Irrigation & Soils Research Lab, Add'tl Info Phone: 208-423-6517 Fax: 208-423-6555 Email: mayland@kimberly.ars.pn.usbr.gov Mailing Address: 3793 North 3600 East, Kimberly, ID 83341. Research Interests: soil management, fertility, soil-water-plant processes, range, pasture

Robbins, Chuck W., Soil Sci., USDA-ARS Northwest Irrigation & Soils Research Lab, Add'tl Info Phone: 208-423-6530 Fax: 208-423-6555 Email: robbins@kimberly.ars.pn.usbr.gov Mailing Address: 3793 North 3600 East, Kimberly, ID 83341. Research Interests: soil management, fertility, salinity, soil processes

Sojka, Robert E., Soil Sci., USDA-ARS Northwest Irrigation & Soils Research Lab, Add'tl Info Phone: 208-423-6562 Fax: 208-423-6555 Email: sojka@kimberly.ars.pn.usbr.gov Mailing Address: 3793 North 3600 East, Kimberly, ID 83341. Research Interests: infiltration, water erosion, soil management, tillage, water quality, polyacrylamide (PAM)

Stevens, John L., Computer Spec., USDA-ARS Northwest Irrigation & Soils Research Lab, Add'tl Info Phone: 208-423-6519 Fax: 208-423-6555 Email: stevens@kimberly.ars.pn.usbr.gov Mailing Address: 3793 North 3600 East, Kimberly, ID 83341. Research Interests: Netware networks, FORTRAN, Quick Basic

Wright, James L., Soil Sci., USDA-ARS Northwest Irrigation & Soils Research Lab, Add'tl Info Phone: 208-423-6501 Fax: 208-423-6555 Email: wright@kimberly.ars.pn.usbr.gov Mailing Address: 3793 North 3600 East, Kimberly, ID 83341. Research Interests: evapotranspiration, soil moisture, irrigation, soil-water-plant processes, meteorology

USDA-ARS Northwest Watershed Research Center, Boise, ID

Slaughter, Chuck W., RL/Supv. Hydrol., USDA-ARS Northwest Watershed Research Center, Phone: 208-422-0722 Fax: 208-334-1502 Email: cslaugh@nwrc.ars.pn.usbr.gov Mailing Address: Northwest Watershed Research Center, 800 Park Boulevard, Plaza IV, Suite 105, Boise, ID 83712-7716. Research Interests: hydrology, soil erosion, range, water management, systems

Clark, Patrick E., Range Scientist, USDA-ARS Northwest Watershed Research Center, Phone: 208-334-1363 Fax: 208-334-1502 Email: pclark@nwrc.ars.pn.usbr.gov Mailing Address: Northwest Watershed Research Center, 800 Park Boulevard, Plaza IV, Suite, Boise, ID 83712-7716.

Flerchinger, Gerald N., Research Hydraulic Engineer, USDA-ARS Northwest Watershed Research Center, Phone: 208-422-0716 Fax: 208-334-1502 Email: gflerchi@nwrc.ars.pn.usbr.gov Mailing Address: Northwest Watershed Research Center, 800 Park Boulevard, Plaza IV, Suite 105, Boise, ID 83712-7716. Research Interests: hydrology, frozen soil, evapotranspiration, soil-water-plant processes, ground water, modeling

Hanson, Clayton L., Agr. Engr., USDA-ARS Northwest Watershed Research Center, Phone: 208-422-0711 Fax: 208-334-1502 Email: chanson@nwrc.ars.pn.usbr.gov Mailing Address: Northwest Watershed Research Center, 800 Park Boulevard, Plaza IV, Suite 105, Boise, ID 83712-7716. Research Interests: hydrology, precipitation, evapotranspiration, range, meteorology

Hardegree, Stuart P., Plant Physiol., USDA-ARS Northwest Watershed Research Center, Phone: 208-422-0728 Fax: 208-334-1502 Email: shardegr@nwrc.ars.pn.usbr.gov Mailing Address: Northwest Watershed Research Center, 800 Park Boulevard, Plaza IV, Suite 105, Boise, ID 83712-7716. Research Interests: soil moisture, evapotranspiration, modeling, range, climate change

Marks, Dan G., Hydrologist, USDA-ARS Northwest Watershed Research Center, Phone: 208-421-0721 Fax: 208-334-1502 Email: dmarks@nwrc.ars.pn.usbr.gov Mailing Address: Northwest Watershed Research Center, 800 Park Boulevard, Plaza IV, Suite 105, Boise, ID 83712-7716.

Marks, Daniel G., Hydrologist, USDA-ARS Northwest Watershed Research Center, Phone: 208-422-0721 Fax: 208-334-1502 Email: dmarks@nwrc.ars.pn.usbr.gov Mailing Address: Northwest Watershed Research Center, 800 Park Boulevard, Plaza IV, Suite 105, Boise, ID 83712-7716.

Mowbray, James E., Range Scientist, USDA-ARS Northwest Watershed Research Center, Phone: 208-334-1363 Fax: 208-334-1502 Email: jmowbray@nwrc.ars.pn.usbr.gov Mailing Address: Northwest Watershed Research Center, 800 Park Boulevard, Plaza IV, Suite, Boise, ID 83712-7716. Research Interests: range, evapotranspiration, soil-water-plant processes, hydrology, climate change

Pierson, Jr., Frederick B., Hydrologist, USDA-ARS Northwest Watershed Research Center, Phone: 208-422-0720 Fax: 208-334-1502 Email: fpierson@nwrc.ars.pn.usbr.gov Mailing Address: Northwest Watershed Research Center, 800 Park Boulevard, Plaza IV, Suite 105, Boise, ID 83712-7716. Research Interests: range, infiltration, runoff, soil erosion, modeling

Seyfried, Mark S., Soil Sci., USDA-ARS Northwest Watershed Research Center, Phone: 208-422-0715 Fax: 208-334-1502 Email: mseyfrie@nwrc.ars.pn.usbr.gov Mailing Address: Northwest Watershed Research Center, 800 Park Boulevard, Plaza IV, Suite 105, Boise, ID 83712-7716. Research Interests: hydrology, soil moisture, evapotranspiration, remote sensing, modeling

Van Vactor, Steven S., Hydrologist, USDA-ARS Northwest Watershed Research Center, Phone: 208-422-0731 Fax: 208-334-1502 Email: svanvact@nwrc.ars.pn.usbr.gov Mailing Address: Northwest Watershed Research Center, 800 Park Boulevard, Plaza IV, Suite 105, Boise, ID 83712-7716. Research Interests: hydrology, infiltration, modeling, runoff, soil erosion

Illinois

USDA-ARS Crops Protection Research, Urbana, IL

Wax, Lloyd M., RL/Supv. Res. Agron., USDA-ARS Crops Protection Research, Add'tl Info Phone: 217-333-9653 Fax: 217-333-5251 Email: l-wax@uiuc.edu Mailing Address: University of Illinois, Turner Hall, 1102 S. Goodwin Avenue, Urbana, IL 61801.

Domier, Leslie L., Plant Pathologist, USDA-ARS Crops Protection Research, Add'tl Info Phone: 217-333-0510 Fax: 217-333-5251 Email: l-domier@uiuc.edu Mailing Address: University of Illinois, Turner Hall, 1102 S. Goodwin Avenue, Urbana, IL 61801.

Hummel, John W., Agr. Engr., USDA-ARS Crops Protection Research, Add'tl Info Phone: 217-333-0808 Fax: 217-333-0323 Email: jhummel@uiuc.edu Mailing Address: University of Illinois, Turner Hall, 1102 S. Goodwin Avenue, Urbana, IL 61801.

Stoller, Edward W., Plant Physiologist, USDA-ARS Crops Protection Research, Add'tl Info Phone: 217-333-9654 Fax: 217-333-5251 Email: estoller@uiuc.edu Mailing Address: University of Illinois, Turner Hall, 1102 S. Goodwin Avenue, Urbana, IL 61801.

Sims, Gerald K., Microbiologist, USDA-ARS Crops Protection Research, Add'tl Info Phone: 217-333-6099 Fax: 217-333-5251 Email: gk-sims@uiuc.edu Mailing Address: University of Illinois, Turner Hall, 1102 S. Goodwin Avenue, Urbana, IL 61801.

Indiana

USDA-ARS National Soil Erosion Research Lab., West Lafayette, IN

Norton, L. Darrell, RL/Soil Sci., USDA-ARS National Soil Erosion Research Lab., Add'tl Info Phone: 765-494-8682 Fax: 765-494-5948 Email: nortond@ecn.purdue.edu Mailing Address: Purdue University, 1196 SOIL Bg., West Lafayette, IN 47907-1196. Research Interests: infiltration, water erosion, soil management, water quality, soil processes

Flanagan, Dennis C., Agr. Engr., USDA-ARS National Soil Erosion Research Lab., Add'tl Info Phone: 765-494-7748 Fax: 765-494-5948 Email: flanagan@ecn.purdue.edu Mailing Address: Purdue University, 1196 SOIL Bg., West Lafayette, IN 47907-1196. Research Interests: runoff, water erosion, sedimentation, surface water quality, modeling

Hickman, Michael V., Res. Agronomist, USDA-ARS National Soil Erosion Research Lab., Add'tl Info Phone: 765-494-4448 Fax: 765-494-5948 Email: hickman@btny.purdue.edu Mailing Address: Purdue University, 1196 SOIL Bg., West Lafayette, IN 47907-1196. Research Interests: soil management, tillage, surface water quality, ground water quality, crops

Huang, Chi-hua H., Soil Sci., USDA-ARS National Soil Erosion Research Lab., Add'tl Info Phone: 765-494-6143 Fax: 765-494-5948 Email: chihua@ecn.purdue.edu Mailing Address: Purdue University, 1196 SOIL Bg., West Lafayette, IN 47907-1196. Research Interests: soil erosion, soil management, infiltration, soil processes, tillage

Laflen, John M., Agr. Engr., USDA-ARS National Soil Erosion Research Lab., Add'tl Info Phone: 515-294-8327 Fax: 515-294-8125 Email: laflen@ecn.purdue.edu Mailing Address: National Soil Tilth Lab., 2150 Pammel Drive, Ames, IA 50011. Research Interests: soil erosion, water quality, tillage, modeling, systems

Livingston, Stan J., Soil Sci., USDA-ARS National Soil Erosion Research Lab., Add'tl Info Phone: 765-494-2946 Fax: 765-494-5948 Email: living@ecn.purdue.edu Mailing Address: Purdue University, 1196 SOIL Bg., West Lafayette, IN 47907-1196. Research Interests: water erosion, soil management, modeling, ground water quality, soil processes

Meyer, Charles R., Computer Spec., USDA-ARS National Soil Erosion Research Lab., Add'tl Info Phone: 765-494-8695 Fax: 765-494-5948 Email: meyerc@ecn.purdue.edu Mailing Address: Purdue University, 1196 SOIL Bg., West Lafayette, IN 47907-1196. Research Interests: soil erosion. water erosion, water quality, systems, modeling

Nearing, Mark A., Agr. Engr., USDA-ARS National Soil Erosion Research Lab., Add'tl Info Phone: 765-494-8683 Fax: 765-494-5948 Email: nearing@ecn.purdue.edu Mailing Address: Purdue University, 1196 SOIL Bg., West Lafayette, IN 47907-1196. Research Interests: hydrology, runoff, infiltration, soil erosion, water erosion

Stott, Diane E., Soil Microbiol., USDA-ARS National Soil Erosion Research Lab., Add'tl Info Phone: 765-494-6657 Fax: 765-494-5948 Email: stottd@soils.ecn.purdue.edu Mailing Address: Purdue University, 1196 SOIL Bg., West Lafayette, IN 47907-1196. Research Interests: soil erosion, soil processes, microbiology, organic matter, residue decay

Iowa

USDA-ARS National Soil Tilth Laboratory, Ames, IA

Hatfield, Jerry L., Director/Supv. Plant Physiol., USDA-ARS National Soil Tilth Laboratory, Phone: 515-294-5723 Fax: 515-294-8125 Email: hatfield@nstl.gov Mailing Address: National Soil Tilth Lab., 2150 Pammel Drive, Ames, IA 50011. Research Interests: evapotranspiration, remote sensing, water quality, soil-water-plant processes, meteorology

USDA-ARS Agricultural Land Mgmt Research, Ames, IA

Burkart, Mike R., RL/Supv. Hydrologist, USDA-ARS Agricultural Land Mgmt Research, Phone: 515-294-5809 Fax: 515-294-8125 Email: burkart@nstl.gov Mailing Address: National Soil Tilth Lab., 2150 Pammel Drive, Ames, IA 50011. Research Interests: hydrology, groundwater, water quality, surface water quality, ground water quality

Kramer, Larry A., Agr. Engr., USDA-ARS Agricultural Land Mgmt Research, Phone: 712-487-3403 Fax: 712-487-3403 Email: kramer@nstl.gov Mailing Address: R. R. 2, Box 132A, Council Bluffs, IA 51503.

Buhler, Douglas D., Res. Agron., USDA-ARS Agricultural Land Mgmt Research, Phone: 515-294-5502 Fax: 515-294-8125 Email: buhler@nstl.gov Mailing Address: National Soil Tilth Lab., 2150 Pammel Drive, Ames, IA 50011. Research Interests: soil management, tillage, crops

Cambardella, Cynthia A., Soil Sci., USDA-ARS Agricultural Land Mgmt Research, Phone: 515-294-2921 Fax: 515-294-8125 Email: cindyc@nstl.gov Mailing Address: National Soil Tilth Lab., 2150 Pammel Drive, Ames, IA 50011. Research Interests: soil processes, soil biology

Colvin, Thomas S., Agr. Engr., USDA-ARS Agricultural Land Mgmt Research, Phone: 515-294-5724 Fax: 515-294-8125 Email: colvin@nstl.gov Mailing Address: National Soil Tilth Lab., 2150 Pammel Drive, Ames, IA 50011. Research Interests: soil erosion, soil management, tillage, soil processes, crops

Karlen, Douglas L., Soil Sci., USDA-ARS Agricultural Land Mgmt Research, Phone: 515-294-3336 Fax: 515-294-8125 Email: dkarlen@nstl.gov Mailing Address: National Soil Tilth Lab., 2150 Pammel Drive, Ames, IA 50011. Research Interests: soil management, tillage, fertility, soil processes, soil-water-plant processes

Moorman, Thomas B., Microbiologist, USDA-ARS Agricultural Land Mgmt Research, Phone: 515-294-2308 Fax: 515-294-8125 Email: moorman@nstl.gov Mailing Address: National Soil Tilth Lab., 2150 Pammel Drive, Ames, IA 50011. Research Interests: tillage, soil processes, soil biology, ground water quality, crops

USDA-ARS Soil & Water Quality Research, Ames, IA

Jaynes, Dan B., RL/Supv. Soil Sci., USDA-ARS Soil & Water Quality Research, Phone: 515-294-8243 Fax: 515-294-8125 Email: jaynes@nstl.gov Mailing Address: National Soil Tilth Lab., 2150 Pammel Drive, Ames, IA 50011. Research Interests: hydrology, infiltration, soil moisture, water quality, modeling

Kaspar, Thomas C., Plant Physiol., USDA-ARS Soil & Water Quality Research, Phone: 515-294-8873 Fax: 515-294-8125 Email: kaspar@nstl.gov Mailing Address: National Soil Tilth Lab., 2150 Pammel Drive, Ames, IA 50011. Research Interests: soil management, tillage, soil processes, soil-water-plant processes, crops

Kovar, John I., Soil Scientist, USDA-ARS Soil & Water Quality Research, Phone: 515-294-3419 Fax: 515-294-8125 Email: kovar@nstl.gov Mailing Address: National Soil Tilth Lab., 2150 Pammel Drive, Ames, IA 50011.

Laird, David A., Soil Sci., USDA-ARS Soil & Water Quality Research, Phone: 515-294-1581 Fax: 515-294-8125 Email: laird@nstl.gov Mailing Address: National Soil Tilth Lab., 2150 Pammel Drive, Ames, IA 50011. Research Interests: water quality, soil processes, soil management

Logsdon, Sally D., Soil Sci., USDA-ARS Soil & Water Quality Research, Phone: 515-294-8265 Fax: 515-294-8125 Email: logsdon@nstl.gov Mailing Address: National Soil Tilth Lab., 2150 Pammel Drive, Ames, IA 50011. Research Interests: soil management, infiltration, soil moisture, soil-water-plant processes, soil processes

Parkin, Tim B., Microbiologist, USDA-ARS Soil & Water Quality Research, Add'tl Info Phone: 515-294-6888 Fax: 515-294-8125 Email: parkin@nstl.gov Mailing Address: National Soil Tilth Lab., 2150 Pammel Drive, Ames, IA 50011. Research Interests: bicrobiology, soil biology, soil processes, fertility

Prueger, John H., Soil Sci., USDA-ARS Soil & Water Quality Research, Phone: 515-294-7694 Fax: 515-294-8125 Email: prueger@nstl.gov Mailing Address: National Soil Tilth Lab., 2150 Pammel Drive, Ames, IA 50011. Research Interests: emapotranspiration, remote sensing, soil-water-plant processes, meteorology

Sauer, Tom J., Soil Scientist, USDA-ARS Soil & Water Quality Research, Phone: 515-294-3416 Fax: 515-294-8125 Email: sauer@nstl.gov Mailing Address: National Soil Tilth Lab., 2150 Pammel Drive, Ames, IA 50011. Research Interests: hydrology, runoff, infiltration, water quality, soil-water-plant processes

Steinheimer, Thomas R., Res. Chemist, USDA-ARS Soil & Water Quality Research, Phone: 515-294-2952 Fax: 515-294-8125 Email: steinhei@nstl.gov Mailing Address: National Soil Tilth Lab., 2150 Pammel Drive, Ames, IA 50011. Research Interests: soil processes, surface water quality, ground water quality

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