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1. Calcium Additions and Microbial Nitrogen Cycle Processes in a Northern Hardwood Forest

Description:
Includes references
Author:
Groffman, Peter M. , Fisk, Melany C. , Driscoll, Charles T. , Likens, Gene E. , Fahey, Timothy J. , Eagar, Christopher , Pardo, Linda H.
Subject:
forest soils , hardwood forests , calcium , leaching , acid deposition , soil respiration , gas emissions , carbon dioxide , methane , nitrous oxide , soil pH , cations , nitrogen , mineralization , nitrification , carbon , soil microorganisms , microbial activity , soil chemistry , biogeochemical cycles , soil-atmosphere interactions , watersheds , foliar uptake , phosphorus , New Hampshire
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

2. Declines in soil-water nitrate in nitrogen-saturated watersheds

Description:
Includes references
Author:
Edwards, P.J. , Williard, K.W.J.
Subject:
forested watersheds , forest soils , soil water , ammonium sulfate , nitrogen , fertilizers , nitrate nitrogen , leaching , soil acidification , lysimeters , streams , water , soil horizons , biogeochemical cycles , soil chemistry , carbon , nitrates , Appalachian region , West Virginia
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

3. Effects of organic matter removal and soil compaction on fifth-year mineral soil carbon and nitrogen contents for sites across the United States and Canada

Description:
Includes references
Author:
Sanchez, F.G. , Tiarks, A.E. , Kranabetter, J.M. , Page-Dumroese, D.S. , Powers, R.F. , Sanborn, P.T. , Chapman, W.K.
Subject:
mineral soils , forest soils , soil organic matter , soil compaction , carbon , nitrogen , understory , plant competition , weed control , carbon nitrogen ratio , Idaho , California , North Carolina , Louisiana , British Columbia
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

4. Invasive earthworm species and nitrogen cycling in remnant forest patches

Description:
In the special issue: Biological invasions and belowground ecology / edited by P.J. Bohlen.
Author:
Szlavecz, K. , Placella, S.A. , Pouyat, R.V. , Groffman, P.M. , Csuzdi, C. , Yesilonis, I.
Subject:
forest soils , urban areas , rural areas , earthworms , invasive species , nitrogen , mineralization , soil nutrient dynamics , nitrification , soil properties , biotransformation , Maryland
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

5. Long-Term Soil Productivity: genesis of the concept and principles behind the program

Description:
Includes references
Author:
Powers, R.F.
Subject:
soil productivity , governmental programs and projects , forest soils , porosity , soil organic matter , primary productivity , soil quality , forests , timber production , soil management , carbon , nitrogen , monitoring , forest stands , dry matter accumulation , United States
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

6. Nitrogen fertilization decreases forest soil fungal and bacterial biomass in three long-term experiments

Description:
Includes references
Author:
Wallenstein, M.D. , McNulty, S. , Fernandez, I.J. , Boggs, J. , Schlesinger, W.H.
Subject:
forest soils , forests , soil bacteria , soil fungi , nitrogen , fertilizer application , carbon , carbon nitrogen ratio , soil nutrient dynamics
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

7. Prescribed fire in a Great Basin sagebrush ecosystem: Dynamics of soil extractable nitrogen and phosphorus

Description:
Includes references
Author:
Rau, B.M. , Blank, R.R. , Chambers, J.C. , Johnson, D.W.
Subject:
prescribed burning , ecological succession , Artemisia , vegetation types , woodlands , Pinus monophylla , Juniperus osteosperma , national forests , woodland soils , forest soils , soil nutrients , nitrogen , phosphorus , extraction , soil nutrient dynamics , temporal variation , Great Basin States , Nevada
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

8. Regional Assessment of N Saturation using Foliar and Root delta15N

Description:
Includes references
Author:
Pardo, L. H. , Templer, P. H. , Goodale, C. L. , Duke, S. , Groffman, P. M. , Adams, M. B. , Boeckx, P. , Boggs, J. , Campbell, J. , Colman, B. , Compton, J. , Emmett, B. , Gundersen, P. , Kjønaas, J. , Lovett, G. , Mack, M. , Magill, A. , Mbila, M. , Mitchell, M. J. , McGee, G. , McNulty, S. , Nadelhoffer, K. , Ollinger, S. , Ross, D. , Rueth, H. , Rustad, L. , Schaberg, P. , Schiff, S. , Schleppi, P. , Spoelstra, J. , Wessel, W.
Subject:
nitrogen , atmospheric deposition , forest ecosystems , forest soils , mineralization , nitrification , leaves , roots , stable isotopes , isotope labeling , carbon nitrogen ratio , geographical variation , hardwood , conifers , trees , Picea rubens , Acer rubrum , Betula alleghaniensis , Fagus grandifolia , Acer saccharum , forest litter , vesicular arbuscular mycorrhizae , ectomycorrhizae , correlation , Northeastern United States , Europe , Chile , Alaska , Colorado
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

9. Species And Rotation Frequency Influence Soil Nitrogen In Simplified Tropical Plant Communities

Description:
Includes references
Author:
Ewel, J.J.
Subject:
plant communities , plant ecology , Cedrela odorata , Hieronyma , Cordia alliodora , Heliconia , Euterpe oleracea , forest plantations , crop rotation , tropical soils , forest soils , soil fertility , nitrogen , nitrification , mineralization , nitrate nitrogen , ammonium nitrogen , Costa Rica
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006