Reconciling multiple impacts of nitrogen enrichment on soil carbon: plant, microbial and geochemical controls | |
Ye, Chenglong; Chen, Dima4; Hall, Steven J.; Pan, Shang; Yan, Xuebin; Bai, Tongshuo; Guo, Hui; Zhang, Yi; Bai, Yongfei4; Hu, Shuijin3 | |
刊名 | ECOLOGY LETTERS |
2018 | |
卷号 | 21期号:8页码:1162-1173 |
关键词 | Acidification calcium bridging density fractionation mineral sorption nitrogen enrichment nitrogen limitation |
ISSN号 | 1461-023X |
DOI | 10.1111/ele.13083 |
文献子类 | Article |
英文摘要 | Impacts of reactive nitrogen (N) inputs on ecosystem carbon (C) dynamics are highly variable, and the underlying mechanisms remain unclear. Here, we proposed a new conceptual framework that integrates plant, microbial and geochemical mechanisms to reconcile diverse and contrasting impacts of N on soil C. This framework was tested using long-term N enrichment and acid addition experiments in a Mongolian steppe grassland. Distinct mechanisms could explain effects of N on particulate and mineral-associated soil C pools, potentially explaining discrepancies among previous N addition studies. While plant production predominated particulate C changes, N-induced soil acidification strongly affected mineral-associated C through decreased microbial growth and pH-sensitive associations between iron and aluminium minerals and C. Our findings suggest that effects of N-induced acidification on microbial respiration and geochemical properties should be included in Earth system models that predict ecosystem C budgets under future N deposition/input scenarios. |
学科主题 | Ecology |
电子版国际标准刊号 | 1461-0248 |
出版地 | HOBOKEN |
WOS关键词 | BELOW-GROUND COMMUNITIES ; ORGANIC-MATTER ; TROPICAL FOREST ; DECOMPOSITION ; DEPOSITION ; SEQUESTRATION ; STORAGE ; STABILIZATION ; AVAILABILITY ; PRODUCTIVITY |
语种 | 英语 |
出版者 | WILEY |
WOS记录号 | WOS:000438340600005 |
资助机构 | National Key R&D Program of China [2017YFC0503902] ; Key Project of Nanjing Agricultural University [0306J0743] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31600383] ; Fundamental Research Funds [KJQN201743] ; Youth Innovation Promotion Association CAS [2015061] ; China Scholarship CouncilChina Scholarship Council [201706850012] |
内容类型 | 期刊论文 |
源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/20709] |
专题 | 植被与环境变化国家重点实验室 |
作者单位 | 1.Nanjing Agr Univ, Coll Resources & Environm Sci, Ecosyst Ecol Lab, Nanjing 210095, Jiangsu, Peoples R China 2.North Carolina State Univ, Dept Entomol & Plant Pathol, Raleigh, NC 27695 USA 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 4.Ye, Chenglong; Hall, Steven J.] Iowa State Univ, Dept Ecol Evolut & Organismal Biol, Ames, IA 50011 USA |
推荐引用方式 GB/T 7714 | Ye, Chenglong,Chen, Dima,Hall, Steven J.,et al. Reconciling multiple impacts of nitrogen enrichment on soil carbon: plant, microbial and geochemical controls[J]. ECOLOGY LETTERS,2018,21(8):1162-1173. |
APA | Ye, Chenglong.,Chen, Dima.,Hall, Steven J..,Pan, Shang.,Yan, Xuebin.,...&Hu, Shuijin.(2018).Reconciling multiple impacts of nitrogen enrichment on soil carbon: plant, microbial and geochemical controls.ECOLOGY LETTERS,21(8),1162-1173. |
MLA | Ye, Chenglong,et al."Reconciling multiple impacts of nitrogen enrichment on soil carbon: plant, microbial and geochemical controls".ECOLOGY LETTERS 21.8(2018):1162-1173. |
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