Reconciling multiple impacts of nitrogen enrichment on soil carbon: plant, microbial and geochemical controls

doi:10.1111/ele.13083

	Reconciling multiple impacts of nitrogen enrichment on soil carbon: plant, microbial and geochemical controls
	Ye, Chenglong ; Chen, Dima 2; Hall, Steven J.; Pan, Shang ; Yan, Xuebin ; Bai, Tongshuo ; Guo, Hui ; Zhang, Yi ; Bai, Yongfei2 ; Hu, Shuijin 3
	2018
发表期刊	ECOLOGY LETTERS
ISSN	1461-023X
卷号	21 期号:8 页码:1162-1173
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.
关键词	Acidification calcium bridging density fractionation mineral sorption nitrogen enrichment nitrogen limitation
学科领域	Ecology
DOI	10.1111/ele.13083
收录类别	SCI
语种	英语
WOS关键词	BELOW-GROUND COMMUNITIES ; ORGANIC-MATTER ; TROPICAL FOREST ; DECOMPOSITION ; DEPOSITION ; SEQUESTRATION ; STORAGE ; STABILIZATION ; AVAILABILITY ; PRODUCTIVITY
WOS记录号	WOS:000438340600005
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1461-0248
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]
作者邮箱	yfbai@ibcas.ac.cn ; shuijin_hu@hotmail.com
作品OA属性	Green Accepted
引用统计	被引频次：141[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	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.Ye, Chenglong; Hall, Steven J.] Iowa State Univ, Dept Ecol Evolut & Organismal Biol, Ames, IA 50011 USA 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 4.North Carolina State Univ, Dept Entomol & Plant Pathol, Raleigh, NC 27695 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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