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研究揭示全球变暖背景下影响土壤碳释放的机制 快报文章
气候变化快报,2021年第23期
作者:  裴惠娟
Microsoft Word(28Kb)  |  收藏  |  浏览/下载:697/0  |  提交时间:2021/12/07
Temperature  Soil  Carbon Storage  
Millennial-scale hydroclimate control of tropical soil carbon storage 期刊论文
NATURE, 2020, 581 (7806) : 63-+
作者:  Lam, Tommy Tsan-Yuk;  Jia, Na;  Zhang, Ya-Wei;  Shum, Marcus Ho-Hin;  Jiang, Jia-Fu;  Zhu, Hua-Chen;  Tong, Yi-Gang;  Shi, Yong-Xia;  Ni, Xue-Bing;  Liao, Yun-Shi;  Li, Wen-Juan;  Jiang, Bao-Gui;  Wei, Wei;  Yuan, Ting-Ting;  Zheng, Kui;  Cui, Xiao-Ming;  Li, Jie;  Pei, Guang-Qian
收藏  |  浏览/下载:61/0  |  提交时间:2020/05/13

Over the past 18,000 years, the residence time and amount of soil carbon stored in the Ganges-Brahmaputra basin have been controlled by the intensity of Indian Summer Monsoon rainfall, with greater carbon destabilization during wetter, warmer conditions.


The storage of organic carbon in the terrestrial biosphere directly affects atmospheric concentrations of carbon dioxide over a wide range of timescales. Within the terrestrial biosphere, the magnitude of carbon storage can vary in response to environmental perturbations such as changing temperature or hydroclimate(1), potentially generating feedback on the atmospheric inventory of carbon dioxide. Although temperature controls the storage of soil organic carbon at mid and high latitudes(2,3), hydroclimate may be the dominant driver of soil carbon persistence in the tropics(4,5)  however, the sensitivity of tropical soil carbon turnover to large-scale hydroclimate variability remains poorly understood. Here we show that changes in Indian Summer Monsoon rainfall have controlled the residence time of soil carbon in the Ganges-Brahmaputra basin over the past 18,000 years. Comparison of radiocarbon ages of bulk organic carbon and terrestrial higher-plant biomarkers with co-located palaeohydrological records(6) reveals a negative relationship between monsoon rainfall and soil organic carbon stocks on a millennial timescale. Across the deglaciation period, a depletion of basin-wide soil carbon stocks was triggered by increasing rainfall and associated enhanced soil respiration rates. Our results suggest that future hydroclimate changes in tropical regions are likely to accelerate soil carbon destabilization, further increasing atmospheric carbon dioxide concentrations.


  
Focus on the role of forests and soils in meeting climate change mitigation goals: summary 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (4)
作者:  Moomaw, William R.;  Law, Beverly E.;  Goetz, Scott J.
收藏  |  浏览/下载:33/0  |  提交时间:2020/07/02
natural climate solutions  forest and soil carbon  tropical forests  carbon sequestration  forest products carbon storage  forest carbon accounting  forest bioenergy accounting  
Impacts of tillage practices on soil carbon stocks in the US corn-soybean cropping system during 1998 to 2016 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (1)
作者:  Yu, Zhen;  Lu, Chaoqun;  Hennessy, David A.;  Feng, Hongli;  Tian, Hanqin
收藏  |  浏览/下载:23/0  |  提交时间:2020/07/02
conterminous US  tillage  carbon storage  soil organic carbon  soil erosion  
Continental-scale nitrogen pollution is shifting forest mycorrhizal associations and soil carbon stocks 期刊论文
GLOBAL CHANGE BIOLOGY, 2018, 24 (10) : 4544-4553
作者:  Averill, Colin;  Dietze, Michael C.;  Bhatnagar, Jennifer M.
收藏  |  浏览/下载:19/0  |  提交时间:2019/04/09
forest ecology  microbial ecology  mycorrhizal fungi  nitrogen deposition  nutrient limitation  soil carbon storage  
Negative emissions-Part 1: Research landscape and synthesis 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2018, 13 (6)
作者:  Minx, Jan C.;  Lamb, William F.;  Callaghan, Max W.;  Fuss, Sabine;  Hilaire, Jerome;  Creutzig, Felix;  Amann, Thorben;  Beringer, Tim;  Garcia, Wagner de Oliveira;  Hartmann, Jens;  Khanna, Tarun;  Lenzi, Dominic;  Luderer, Gunnar;  Nemet, Gregory F.;  Rogelj, Joeri;  Smith, Pete;  Vicente, Jose Luis Vicente;  Wilcox, Jennifer;  Dominguez, Maria del Mar Zamora
收藏  |  浏览/下载:35/0  |  提交时间:2019/04/09
negative emissions  carbon dioxide removal (CDR)  soil carbon sequestration and biochar  afforestation and reforestation  enhanced weathering  direct air capture  bioenergy combined with carbon capture and storage (BECCS)  
Long-term terrestrial carbon dynamics in the Midwestern United States during 1850-2015: Roles of land use and cover change and agricultural management 期刊论文
GLOBAL CHANGE BIOLOGY, 2018, 24 (6) : 2673-2690
作者:  Yu, Zhen;  Lu, Chaoqun;  Cao, Peiyu;  Tian, Hanqin
收藏  |  浏览/下载:14/0  |  提交时间:2019/04/09
agricultural management  carbon storage change  cropland  land use and cover change  Midwestern US  soil carbon  vegetation carbon  
Nitrogen-rich microbial products provide new organo-mineral associations for the stabilization of soil organic matter 期刊论文
GLOBAL CHANGE BIOLOGY, 2018, 24 (4) : 1762-1770
作者:  Kopittke, Peter M.;  Hernandez-Soriano, Maria C.;  Dalal, Ram C.;  Finn, Damien;  Menzies, Neal W.;  Hoeschen, Carmen;  Mueller, Carsten W.
收藏  |  浏览/下载:19/0  |  提交时间:2019/04/09
nano-scale secondary ion mass spectrometry  organo-mineral interactions  soil carbon cycling  soil carbon storage  stable isotopes  
Nitrogen limitation of decomposition and decay: How can it occur? 期刊论文
GLOBAL CHANGE BIOLOGY, 2018, 24 (4) : 1417-1427
作者:  Averill, Colin;  Waring, Bonnie
收藏  |  浏览/下载:23/0  |  提交时间:2019/04/09
carbon storage  decomposition  microbial ecology  nitrogen  nutrient limitation  soil  
Matrix approach to land carbon cycle modeling: A case study with the Community Land Model 期刊论文
GLOBAL CHANGE BIOLOGY, 2018, 24 (3) : 1394-1404
作者:  Huang, Yuanyuan;  Lu, Xingjie;  Shi, Zheng;  Lawrence, David;  Koven, Charles D.;  Xia, Jianyang;  Du, Zhenggang;  Kluzek, Erik;  Luo, Yiqi
收藏  |  浏览/下载:20/0  |  提交时间:2019/04/09
carbon storage  CO2 fertilization  data assimilation  residence time  soil organic matter