Quantifying carbon-nitrogen feedbacks in the Community Land Model (CLM4)

被引：111

作者：

Bonan, Gordon B. ^{[1
]}

Levis, Samuel ^{[1
]}

机构：

[1] Natl Ctr Atmospher Res, Boulder, CO 80307 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2010年 / 37卷

基金：

美国国家科学基金会;

关键词：

CLIMATE; SOIL;

D O I：

10.1029/2010GL042430

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Recent studies indicate that nitrogen biogeochemistry affects the carbon cycle feedback in climate simulations. We use the Community Land Model version 4 (CLM4) with carbon-only and carbon-nitrogen biogeochemistry to assess the influence of nitrogen on the land carbon budget for 1973-2004. Carbon-only simulations show that the carbon gain from increasing atmospheric CO2 (the concentration-carbon feedback) is four times greater than the warming-induced carbon loss (the climate-carbon feedback) over the period 1973-2004. Nitrogen reduces both feedbacks compared with carbon-only biogeochemistry. The decrease in the concentration-carbon feedback is three times greater than the effect on the climate-carbon feedback. Thus, the influence of nitrogen on the CLM4 concentration-carbon feedback is of greater importance for near-term climate change simulations than its effect on the climate-carbon feedback. Furthermore, the land use carbon flux greatly exceeds these carbon-nitrogen biogeochemical feedbacks. Citation: Bonan, G. B., and S. Levis (2010), Quantifying carbon-nitrogen feedbacks in the Community Land Model (CLM4), Geophys. Res. Lett., 37, L07401, doi: 10.1029/2010GL042430.

引用

页数：6

共 23 条

[11] Improvements to the Community Land Model and their impact on the hydrological cycle
Oleson, K. W.
Niu, G. -Y.
Yang, Z. -L.
Lawrence, D. M.
Thornton, P. E.
Lawrence, P. J.
Stoeckli, R.
Dickinson, R. E.
Bonan, G. B.
Levis, S.
Dai, A.
Qian, T.
[J]. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES, 2008, 113 (G1)
[12] Long-term climate commitments projected with climate-carbon cycle models
Plattner, G. -K.
Knutti, R.
Joos, F.
Stocker, T. F.
von Bloh, W.
Brovkin, V.
Cameron, D.
Driesschaert, E.
Dutkiewicz, S.
Eby, M.
Edwards, N. R.
Fichefet, T.
Hargreaves, J. C.
Jones, C. D.
Loutre, M. F.
Matthews, H. D.
Mouchet, A.
Mueller, S. A.
Nawrath, S.
Price, A.
Sokolov, A.
Strassmann, K. M.
Weaver, A. J.
[J]. JOURNAL OF CLIMATE, 2008, 21 (12) : 2721 - 2751
[13] Systematic assessment of terrestrial biogeochemistry in coupled climate-carbon models
Randerson, James T.
Hoffman, Forrest M.
Thornton, Peter E.
Mahowald, Natalie M.
Lindsay, Keith
Lee, Yen-Huei
Nevison, Cynthia D.
Doney, Scott C.
Bonan, Gordon
Stoeckli, Reto
Covey, Curtis
Running, Steven W.
Fung, Inez Y.
[J]. GLOBAL CHANGE BIOLOGY, 2009, 15 (10) : 2462 - 2484
[14] Consequences of considering carbon-nitrogen interactions on the feedbacks between climate and the terrestrial carbon cycle
Sokolov, Andrei P.
Kicklighter, David W.
Melillo, Jerry M.
Felzer, Benjamin S.
Schlosser, C. Adam
Cronin, Timothy W.
[J]. JOURNAL OF CLIMATE, 2008, 21 (15) : 3776 - 3796
[15] Solomon S, 2007, AR4 CLIMATE CHANGE 2007: THE PHYSICAL SCIENCE BASIS, P1
[16] Use of FLUXNET in the community land model development
Stoeckli, R.
Lawrence, D. M.
Niu, G. -Y.
Oleson, K. W.
Thornton, P. E.
Yang, Z. -L.
Bonan, G. B.
Denning, A. S.
Running, S. W.
[J]. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES, 2008, 113 (G1)
[17] Carbon-nitrogen interactions regulate climate-carbon cycle feedbacks: results from an atmosphere-ocean general circulation model
Thornton, P. E.
Doney, S. C.
Lindsay, K.
Moore, J. K.
Mahowald, N.
Randerson, J. T.
Fung, I.
Lamarque, J. -F.
Feddema, J. J.
Lee, Y. -H.
[J]. BIOGEOSCIENCES, 2009, 6 (10) : 2099 - 2120
[18] Influence of carbon-nitrogen cycle coupling on land model response to CO2 fertilization and climate variability
Thornton, Peter E.
Lamarque, Jean-Francois
Rosenbloom, Nan A.
Mahowald, Natalie M.
[J]. GLOBAL BIOGEOCHEMICAL CYCLES, 2007, 21 (04)
[19] NUTRIENT CYCLING IN MOIST TROPICAL FOREST
VITOUSEK, PM
SANFORD, RL
[J]. ANNUAL REVIEW OF ECOLOGY AND SYSTEMATICS, 1986, 17 : 137 - 167
[20] LITTERFALL, NUTRIENT CYCLING, AND NUTRIENT LIMITATION IN TROPICAL FORESTS
VITOUSEK, PM
[J]. ECOLOGY, 1984, 65 (01) : 285 - 298

← 1 2 3 →