Enhancement of Carbon Sequestration in Soil in the Temperature Grasslands of Northern China by Addition of Nitrogen and Phosphorus

doi:10.1371/journal.pone.0077241

	Enhancement of Carbon Sequestration in Soil in the Temperature Grasslands of Northern China by Addition of Nitrogen and Phosphorus
	He, Nianpeng ; Yu, Qiang 1,2; Wang, Ruomeng ; Zhang, Yunhai3 ; Gao, Yang ; Yu, Guirui
	2013
发表期刊	PLOS ONE
ISSN	1932-6203
卷号	8 期号:10
摘要	Increased nitrogen (N) deposition is common worldwide. Questions of where, how, and if reactive N-input influences soil carbon (C) sequestration in terrestrial ecosystems are of great concern. To explore the potential for soil C sequestration in steppe region under N and phosphorus (P) addition, we conducted a field experiment between 2006 and 2012 in the temperate grasslands of northern China. The experiment examined 6 levels of N (0-56 g N m(-2) yr(-1)), 6 levels of P (0-12.4 g P m(-2) yr(-1)), and a control scenario. Our results showed that addition of both N and P enhanced soil total C storage in grasslands due to significant increases of C input from litter and roots. Compared with control plots, soil organic carbon (SOC) in the 0-100 cm soil layer varied quadratically, from 156.8 to 1352.9 g C m(-2) with N addition gradient (R-2 = 0.99, P < 0.001); and logarithmically, from 293.6 to 788.6 g C m(-2) with P addition gradient (R-2 = 0.56, P = 0.087). Soil inorganic carbon (SIC) decreased quadratically with N addition. The net C sequestration on grassland (including plant, roots, SIC, and SOC) increased linearly from -128.6 to 729.0 g C m(-2) under N addition (R-2 = 0.72, P = 0.023); and increased logarithmically, from 248.5 to 698 g C m(-2) under P addition (R-2 = 0.82, P = 0.014). Our study implies that N addition has complex effects on soil carbon dynamics, and future studies of soil C sequestration on grasslands should include evaluations of both SOC and SIC under various scenarios.
学科领域	Multidisciplinary Sciences
DOI	10.1371/journal.pone.0077241
收录类别	SCI
语种	英语
WOS关键词	LAND-USE ; DEPOSITION ; STORAGE ; ECOSYSTEMS ; DYNAMICS ; LITTER ; MINERALIZATION ; ACIDIFICATION ; PERSPECTIVE ; IMPACT
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000325814200073
出版者	PUBLIC LIBRARY SCIENCE
文献子类	Article
出版地	SAN FRANCISCO
资助机构	Natural Science Foundation of China(National Natural Science Foundation of China (NSFC)) ; special fund for scientific research in the public interest ; strategic program of state eco-environmental investigation and evaluation in China
作者邮箱	Gao, Yang/A-4128-2017 ; 于, 贵瑞/C-1768-2014 ; Yu, Qiang/E-2097-2011 ; Zhang, Yunhai/F-7318-2019
作品OA属性	Green Accepted, gold, Green Published, Green Submitted
引用统计	被引频次：17[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/2S10CLM1/27812
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang, Peoples R China 3.Colorado State Univ, Dept Biol, Grad Degree Program Ecol, Ft Collins, CO 80523 USA 4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China
推荐引用方式 GB/T 7714	He, Nianpeng,Yu, Qiang,Wang, Ruomeng,et al. Enhancement of Carbon Sequestration in Soil in the Temperature Grasslands of Northern China by Addition of Nitrogen and Phosphorus[J]. PLOS ONE,2013,8(10).
APA	He, Nianpeng,Yu, Qiang,Wang, Ruomeng,Zhang, Yunhai,Gao, Yang,&Yu, Guirui.(2013).Enhancement of Carbon Sequestration in Soil in the Temperature Grasslands of Northern China by Addition of Nitrogen and Phosphorus.PLOS ONE,8(10).
MLA	He, Nianpeng,et al."Enhancement of Carbon Sequestration in Soil in the Temperature Grasslands of Northern China by Addition of Nitrogen and Phosphorus".PLOS ONE 8.10(2013).

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