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美研究指出颗粒有机碳的温度敏感性比矿质结合态有机碳高53% 快报文章
气候变化快报,2024年第5期
作者:  董利苹
Microsoft Word(15Kb)  |  收藏  |  浏览/下载:527/0  |  提交时间:2024/03/05
Emergent Temperature Sensitivity  Soil Organic Carbon  Mineral Associations  
美研究量化森林湿地土壤中的“隐藏碳” 快报文章
气候变化快报,2024年第4期
作者:  秦冰雪
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Forested Wetland  Soil Organic Carbon  
多个国际机构联合发布全球潮汐湿地土壤有机碳数据集 快报文章
气候变化快报,2023年第23期
作者:  秦冰雪
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Dataset  Soil Organic Carbon  Tidal Marshes  
改善7.5%的最差农田可使欧洲在9年内实现土壤有机碳零损失 快报文章
气候变化快报,2023年第22期
作者:  秦冰雪
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Soil Organic Carbon  Europe  
欧洲研究称扩大有机农业可能造成土壤有机碳汇的减少 快报文章
气候变化快报,2023年第14期
作者:  裴惠娟
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Organic Farming  Soil Organic Carbon  
法国研究基于荟萃分析确定土壤有机碳的影响因素 快报文章
气候变化快报,2023年第13期
作者:  裴惠娟
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Anthropocene  Soil Organic Carbon  Meta-analysis  
研究发现微生物过程在土壤碳储存中发挥关键作用 快报文章
气候变化快报,2023年第12期
作者:  廖 琴
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Microbial Carbon Use Efficiency  Soil Organic Carbon  
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:25/0  |  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.


  
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:7/0  |  提交时间:2020/07/02
conterminous US  tillage  carbon storage  soil organic carbon  soil erosion  
Dark microbial CO2 fixation in temperate forest soils increases with CO2 concentration 期刊论文
GLOBAL CHANGE BIOLOGY, 2019
作者:  Spohn, Marie;  Mueller, Karolin;  Hoeschen, Carmen;  Mueller, Carsten W.;  Marhan, Sven
收藏  |  浏览/下载:23/0  |  提交时间:2020/02/17
anaplerotic reactions  carbon cycle  chemoautotrophic bacteria  CO2 concentration  dark microbial CO2 fixation  fungal-bacterial interactions  microbial carbon pump  microbial soil carbon processing  soil organic matter formation