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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.


  
Sifting through the weeds: Understanding heterogeneity in fertilizer and labor response in Central Malawi 期刊论文
ECOLOGICAL ECONOMICS, 2020, 169
作者:  Kopper, Sarah A.;  Jayne, Thomas S.;  Snapp, Sieglinde S.
收藏  |  浏览/下载:6/0  |  提交时间:2020/07/02
Fertilizer Profitability  Weeding Labor  Maize Production  Soil Organic Carbon  
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  
Increased deep soil respiration detected despite reduced overall respiration in permafrost peat plateaus following wildfire 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2019, 14 (12)
作者:  Gibson, Carolyn M.;  Estop-Aragones, Cristian;  Flannigan, Mike;  Thompson, Dan K.;  Olefeldt, David
收藏  |  浏览/下载:13/0  |  提交时间:2020/02/17
wildfire  soil organic carbon  soil respiration  permafrost peatlands  
Tree basal area and conifer abundance predict soil carbon stocks and concentrations in an actively managed forest of northern New Hampshire, USA 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2019, 451
作者:  Jevon, Fiona V.;  39;Amato, Anthony W.
收藏  |  浏览/下载:7/0  |  提交时间:2019/11/27
Soil organic carbon  Forest management  Temperate forest  
Characterising the biophysical, economic and social impacts of soil carbon sequestration as a greenhouse gas removal technology 期刊论文
GLOBAL CHANGE BIOLOGY, 2019
作者:  Sykes, Alasdair J.;  Macleod, Michael;  Eory, Vera;  Rees, Robert M.;  Payen, Florian;  Myrgiotis, Vasilis;  Williams, Mathew;  Sohi, Saran;  Hillier, Jon;  Moran, Dominic;  Manning, David A. C.;  Goglio, Pietro;  Seghetta, Michele;  Williams, Adrian;  Harris, Jim;  Dondini, Marta;  Walton, Jack;  House, Joanna;  Smith, Pete
收藏  |  浏览/下载:10/0  |  提交时间:2019/11/27
4 per mille  agriculture  greenhouse gas removal  negative emissions  soil carbon sequestration  soil organic carbon  
How to measure, report and verify soil carbon change to realize the potential of soil carbon sequestration for atmospheric greenhouse gas removal 期刊论文
GLOBAL CHANGE BIOLOGY, 2019
作者:  Smith, Pete;  Soussana, Jean-Francois;  Angers, Denis;  Schipper, Louis;  Chenu, Claire;  Rasse, Daniel P.;  Batjes, Niels H.;  van Egmond, Fenny;  McNeill, Stephen;  Kuhnert, Matthias;  Arias-Navarro, Cristina;  Olesen, Jorgen E.;  Chirinda, Ngonidzashe;  Fornara, Dario;  Wollenberg, Eva;  Alvaro-Fuentes, Jorge;  Sanz-Cobena, Alberto;  Klumpp, Katja
收藏  |  浏览/下载:13/0  |  提交时间:2019/11/27
measurement  monitoring  MRV  reporting  soil organic carbon  soil organic matter  verification  
Climate warming alters subsoil but not topsoil carbon dynamics in alpine grassland 期刊论文
GLOBAL CHANGE BIOLOGY, 2019
作者:  Jia, Juan;  Cao, Zhenjiao;  Liu, Chengzhu;  Zhang, Zhenhua;  Lin, Li;  Wang, Yiyun;  Haghipour, Negar;  Wacker, Lukas;  Bao, Hongyan;  Dittmar, Thorston;  Simpson, Myrna J.;  Yang, Huan;  Crowther, Thomas W.;  Eglinton, Timothy, I;  He, Jin-Sheng;  Feng, Xiaojuan
收藏  |  浏览/下载:10/0  |  提交时间:2019/11/27
deep soil  lignin decomposition  physical fraction  radiocarbon  soil organic carbon  warming  
Introducing nitrogen-fixing tree species and mixing with Pinus massoniana alters and evenly distributes various chemical compositions of soil organic carbon in a planted forest in southern China 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2019, 449
作者:  Wang, Hui;  Liu, Shirong;  Song, Zhanchao;  Yang, Yujing;  Wang, Jingxin;  You, Yeming;  Zhang, Xiao;  Shi, Zuomin;  Nong, You;  Ming, Angang;  Lu, Lihua;  Cai, Daoxiong
收藏  |  浏览/下载:13/0  |  提交时间:2019/11/27
Litter quality  Organic carbon chemical composition  Planted forests  Soil microbial biomass and diversity  Tree species