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Australia: Come so far, got so far to go 新闻
来源平台:World Business Council for Sustainable Development. 发布日期:2021
作者:  admin
收藏  |  浏览/下载:1/0  |  提交时间:2021/06/07
Climate Change Can Destabilize the Global Soil Carbon Reservoir, New Study Finds 新闻
来源平台:Woods Hole Oceanographic Institution. 发布日期:2021
作者:  admin
收藏  |  浏览/下载:0/0  |  提交时间:2021/03/29
Study: crop diversification can improve environmental outcomes without sacrificing yields 新闻
来源平台:EurekAlert. 发布日期:2020
作者:  admin
收藏  |  浏览/下载:6/0  |  提交时间:2020/11/20
Climate and soil carbon 新闻
来源平台:Convention on Biological Diversity. 发布日期:2020
作者:  admin
收藏  |  浏览/下载:3/0  |  提交时间:2021/08/10
Ecologically friendly agriculture doesn't compromise crop yields 新闻
来源平台:EurekAlert. 发布日期:2020
作者:  admin
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Setting the Record Straight About Renewable Energy 新闻
来源平台:World Resources Institute. 发布日期:2020
作者:  admin
收藏  |  浏览/下载:6/0  |  提交时间:2020/05/18
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.


  
How Important is Denitrification in Riparian Zones? Combining End-Member Mixing and Isotope Modeling to Quantify Nitrate Removal from Riparian Groundwater 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (1)
作者:  Lutz, Stefanie R.;  Trauth, Nico;  Musolff, Andreas;  Van Breukelen, Boris M.;  Knoeller, Kay;  Fleckenstein, Jan H.
收藏  |  浏览/下载:7/0  |  提交时间:2020/07/02
Microbial responses to warming enhance soil carbon loss following translocation across a tropical forest elevation gradient 期刊论文
ECOLOGY LETTERS, 2019, 22 (11) : 1889-1899
作者:  Nottingham, Andrew T.;  Whitaker, Jeanette;  Ostle, Nick J.;  Bardgett, Richard D.;  McNamara, Niall P.;  Fierer, Noah;  Salinas, Norma;  Ccahuana, Adan J. Q.;  Turner, Benjamin L.;  Meir, Patrick
收藏  |  浏览/下载:15/0  |  提交时间:2019/11/27
Carbon-use-efficiency  climate feedback  climate warming  lowland tropical forest  montane tropical forest  Q(10)  soil carbon cycle  translocation  
Increased microbial growth, biomass, and turnover drive soil organic carbon accumulation at higher plant diversity 期刊论文
GLOBAL CHANGE BIOLOGY, 2019
作者:  Prommer, Judith;  Walker, Tom W. N.;  Wanek, Wolfgang;  Braun, Judith;  Zezula, David;  Hu, Yuntao;  Hofhansl, Florian;  Richter, Andreas
收藏  |  浏览/下载:14/0  |  提交时间:2019/11/27
microbial activity  microbial carbon use efficiency  microbial necromass  microbial turnover  plant diversity  soil organic carbon