Courses:
NRM 290 - Natural Resource Issues at High Latitudes
NRM 304 - Perspectives in Natural Resource Management
NRM 380 - Soils and the Environment
NRM 482 - Why Do Boreal Forests Matter?
NRM 672 - Nutrient Cycling and Soil Fertility
NRM 694 - Adaptive Management

Research Interests: Ecosystem dynamics, soil carbon balance, global climate change

Current Research Programs:
1) Bonanza Creek LTER: wildfire effects on soil respiration,
2) McIntire-Stennis: influence of disturbance on soil carbon balance,
3) New Crops III: long term carbon balance assessment from resampling old research sites,
4) New Crops IV: using charcoal records to infer effects of wildfire frequency on soil C storage,
5) Other: nutrient constraints on white spruce growth in northwest AK

Examples of Research Support:
"LTER: Climate-Disturbance Interactions in the Alaskan Boreal Forest", National Science Foundation, $4,200,000, 1998-2004

"Soil Carbon Balance and Nitrogen Dynamics Following Disturbance by Wildfire and Logging in Interior Alaskan Forests", USDA CSREES McIntire-Stennis, $???, 2001-2006

"New Crops for New Markets: Carbon Cropping the Boreal Forest of Alaska", USDA CSREES New Crop Opportunities, $595,827, 2003-2004

Examples of Publications:
DELGADO, J.A., A.R. MOSIER, D.W. VALENTINE, D.S. SCHIMEL, and W.J. PARTON. 1996. Long term 15N studies in a catena of the shortgrass steppe. Biogeochemistry 32:41-52.

MOSIER, A.R., W.J. PARTON, D.W. VALENTINE, D.S. OJIMA, D.S. SCHIMEL, and J.A. DELGADO. 1996. CH4 and N2O fluxes in the Colorado shortgrass steppe: 1. Impact of landscape and nitrogen addition. Global Biogeochemical Cycles 10(3):387-399.

PARTON, W.J., A.R. MOSIER, D.S. OJIMA, D.W. VALENTINE, D.S. SCHIMEL, K. WEIER, and A.E. KULMALA. 1996. Generalized model for N2 and N2O production from nitrification and denitrification. Global Biogeochemical Cycles 10(3):401-412.

MOSIER, A.R., W.J. PARTON, D.W. VALENTINE, D.S. OJIMA, D.S. SCHIMEL, and O. HEINEMEYER. 1997. CH4 and N2O fluxes in the Colorado shortgrass steppe: 2. Long-term impact of land use change. Global Biogeochemical Cycles 11(1):29-42.

MOSIER, A.R., J.A. DELGADO, V.L. COCHRAN, D.W. VALENTINE, and W.J. PARTON. 1997. Impact of agriculture on soil consumption of atmospheric CH4 and a comparison of CH4 and N2O flux in subarctic, temperate and tropical grasslands. Nutrient Cycling in Agroecosystems 49(1-3):71-83.

BINKLEY, D., Y. SON, and D.W. VALENTINE. 2000. Do forests receive occult inputs of nitrogen? Ecosystems 3(4):321-331.

MENEZES, R.S.C., E.T. ELLIOTT, D.W. VALENTINE, and S.C. WILLIAMS. 2001. Carbon and nitrogen dynamics in elk winter ranges. Journal of Range Management 54:400-408.

HIBBARD, K.A., S. ARCHER, D.S. SCHIMEL, and D.W. VALENTINE. 2001. Biogeochemical changes accompanying woody plant encroachment in a subtropical savanna. Ecology 82:1999-2011.

CASTELLS, E., J. PEÑUELAS, AND D.W. VALENTINE. 2003. Influence of the phenolic compound bearing species Ledum palustre on soil N cycling in a boreal hardwood forest. Plant and Soil 251:155-166.