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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:7/0  |  提交时间:2020/07/02
Fertilizer Profitability  Weeding Labor  Maize Production  Soil Organic Carbon  
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  
Quantitative assessment of microbial necromass contribution to soil organic matter 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (11) : 3578-3590
作者:  Liang, Chao;  Amelung, Wulf;  Lehmann, Johannes;  Kaestner, Matthias
收藏  |  浏览/下载:12/0  |  提交时间:2019/11/27
amino sugar  ecosystem sustainability  microbial anabolism  microbial biomarker  microbial residue  soil organic carbon  
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  
Anthropogenic nitrogen enrichment enhances soil carbon accumulation by impacting saprotrophs rather than ectomycorrhizal fungal activity 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (9) : 2900-2914
作者:  Maaroufi, Nadia, I;  Nordin, Annika;  Palmqvist, Kristin;  Hasselquist, Niles J.;  Forsmark, Benjamin;  Rosenstock, Nicholas P.;  Wallander, Hakan;  Gundale, Michael J.
收藏  |  浏览/下载:9/0  |  提交时间:2019/11/27
carbon sequestration  ecological stoichiometry  Gadgil effect  high-throughput sequencing  ingrowth mesh bags  ITS amplicons  litter decomposition  root exclosure  soil organic matter  
Deep soil flipping increases carbon stocks of New Zealand grasslands 期刊论文
GLOBAL CHANGE BIOLOGY, 2019, 25 (7) : 2296-2309
作者:  Schiedung, Marcus;  Tregurtha, Craig S.;  Beare, Michael H.;  Thomas, Steve M.;  Don, Axel
收藏  |  浏览/下载:7/0  |  提交时间:2019/11/27
carbon burial  carbon sequestration  carbon stocks  chronosequence  grassland  re-sampling  soil organic carbon  subsoil  
Global patterns in fine root decomposition: climate, chemistry, mycorrhizal association and woodiness 期刊论文
ECOLOGY LETTERS, 2019, 22 (6) : 946-953
作者:  See, Craig R.;  McCormack, Michael Luke;  Hobbie, Sarah E.;  Flores-Moreno, Habacuc;  Silver, Whendee L.;  Kennedy, Peter G.
收藏  |  浏览/下载:12/0  |  提交时间:2019/11/26
Carbon cycling  decay  MANE framework  meta-analysis  nutrient cycling  organic matter  plant economics spectrum  plant functional traits  plant litter  soil organic matter