Impacts of Rising Nitrogen Deposition on N Exports from Forests to Surface Waters in the Chesapeake Bay Watershed
作者： Yude Pan , John Hom , Richard Birdsey , Kevin McCullough
DOI: 10.1007/S00267-003-9122-5
关键词:
摘要: In this study, we applied a process-based forest ecosystem model, PnET-CN, to estimate inorganic N (nitrate) loading and retention under chronic increases of atmospheric deposition in the Chesapeake Bay (CPB) watershed. The results indicated that average leaching loss from forested lands CPB watershed is 1.23 kg ha−1 y−1 at current levels, suggesting approximately 88% retained by ecosystems. Total dissolved exported watersheds was 11,617 Mg yr−1. predicted rates nitrate losses are well validated United States Geological Survey–National Water-Quality Assessment data measured gauged stations for drainages within watershed, also compatible with field loads associated forests If were twice would drop 81%. surface waters then increase more than threefold. A nonlinear extreme scenario shows symptom saturation an accelerated decline functioning retain rising levels nitrogen deposition.
springer.com
sci-hub.se 参考文章(30)
R.C. Johanson, B.R. Becknell, J.L. Kittle, A.S. Donigian, J.C. Imhoff, Hydrological simulation program: Fortran. User's manual for release 10 ,(1993)
Nitrogen loading in coastal water bodies : an atmospheric perspective American Geophysical Union. ,(2001) , 10.1029/CE057
Richard B. Alexander, Richard A. Smith, Gregory E. Schwarz, Stephen D. Preston, John W. Brakebill, Raghavan Srinivasan, Percy A. Pacheco, Atmospheric Nitrogen Flux from the Watersheds of Major Estuaries of the United States: An Application of the SPARROW Watershed Model Nitrogen Loading in Coastal Water Bodies: An Atmospheric Perspective. pp. 119- 170 ,(2013) , 10.1029/CE057P0119
Mark S. Castro, Charles T. Driscoll, Thomas E. Jordan, William G. Reay, Walter R. Boynton, Sybil P. Seitzinger, Renée V. Styles, Jaye E. Cable, Contribution of Atmospheric Deposition to the Total Nitrogen Loads to Thirty‐Four Estuaries on the Atlantic and Gulf Coasts of the United States Nitrogen Loading in Coastal Water Bodies: An Atmospheric Perspective. pp. 77- 106 ,(2013) , 10.1029/CE057P0077
Richard Birdsey, John Hom, Jennifer Jenkins, Yude Pan, Importance of Foliar Nitrogen Concentration to Predict Forest Productivity in the Mid-Atlantic Region Forest Science. ,vol. 50, pp. 279- 289 ,(2004) , 10.1093/FORESTSCIENCE/50.3.279
Paul E. Stacey, Holly S. Greening, James N. Kremer, David Peterson, David A. Tomasko, Contributions of Atmospheric Nitrogen Deposition to U.S. Estuaries: Summary and Conclusions Nitrogen Loading in Coastal Water Bodies: An Atmospheric Perspective. pp. 187- 226 ,(2013) , 10.1029/CE057P0187
Zhiliang Zhu, D. L. Evans, U.S. forest types and predicted percent forest cover from AVHRR data Photogrammetric Engineering and Remote Sensing. ,vol. 60, pp. 525- 531 ,(1994)
John D. Aber, Scott V. Ollinger, Charles T. Driscoll, Modeling nitrogen saturation in forest ecosystems in response to land use and atmospheric deposition Ecological Modelling. ,vol. 101, pp. 61- 78 ,(1997) , 10.1016/S0304-3800(97)01953-4
James N. Galloway, William H. Schlesinger, Hiram Levy, Anthony Michaels, Jerald L. Schnoor, Nitrogen fixation: Anthropogenic enhancement‐environmental response Global Biogeochemical Cycles. ,vol. 9, pp. 235- 252 ,(1995) , 10.1029/95GB00158
Alison H. Magill, John D. Aber, Glenn M. Berntson, William H. McDowell, Knute J. Nadelhoffer, Jerry M. Melillo, Paul Steudler, Long-Term Nitrogen Additions and Nitrogen Saturation in Two Temperate Forests Ecosystems. ,vol. 3, pp. 238- 253 ,(2000) , 10.1007/S100210000023