Soil Carbon Sequestration Potential as Affected by Management Practices in Northern China: A Simulation Study

doi:10.1016/S1002-0160(14)60039-4

	Soil Carbon Sequestration Potential as Affected by Management Practices in Northern China: A Simulation Study
	Wang Guo-Cheng ; Wang En-Li ; Huang Yao2 ; Xu Jing-Jing
	2014
发表期刊	PEDOSPHERE
ISSN	1002-0160
卷号	24 期号:4 页码:529-543
摘要	Soil has been identified as a possible carbon (C) sink for sequestering atmospheric carbon dioxide (CO2). However, soil organic carbon (SOC) dynamics in agro-ecosystems is affected by complex interactions of various factors including climate, soil and agricultural management practices, which hinders our understanding of the underlying mechanisms. The objectives of this study were to use the Agricultural Production Systems sIMulator (APSIM) model to simulate the long-term SOC dynamics under different management practices at four long-term experimental sites, Zhengzhou and Xuzhou with double cropping systems and Gongzhuling and Urumqi with single cropping systems, located in northern China. Firstly, the model was calibrated using information from the sites and literature, and its performance to predict crop growth and SOC dynamics was examined The calibrated model was then used to assess the impacts of different management practices, including fertilizer application, irrigation, and residue retention, on C dynamics in the top 30 cm of the soil by scenario modelling. Results indicate a significant SOC sequestration potential through improved management practices of nitrogen (N) fertilizer application, stubble retention, and irrigation. Optimal N fertilization (N-opt) and 100% stubble retention (R100) increased SOC by about 11.2%, 208.29%, and 283.67% under irrigation at Gongzhuling, Zhengzhou, and Xuzhou, respectively. Soil organic carbon decreased rapidly at Urumqi under irrigation, which was due to the enhanced decomposition by increased soil moisture. Under rainfed condition, SOC remained at a higher level. The combination of Nopt and R100 increased SOC by about 0.46% under rainfed condition at Urumqi. Generally, agricultural soils with double cropping systems (Zhengzhou and Xuzhou) showed a greater potential to sequester C than those with single cropping systems (Gongzhuling and Urumqi).
关键词	agro-ecosystems APSIM model fertilizer application irrigation residue retention scenario analysis soil organic carbon
学科领域	Soil Science
DOI	10.1016/S1002-0160(14)60039-4
收录类别	SCI
语种	英语
WOS关键词	ORGANIC-CARBON ; NITROGEN-FERTILIZATION ; AGRICULTURAL REGIONS ; BIOMASS RESOURCES ; WATER-USE ; CLIMATE ; TILLAGE ; CROPLANDS ; APSIM ; DECOMPOSITION
WOS研究方向	Agriculture
WOS记录号	WOS:000339141900011
出版者	SCIENCE PRESS
文献子类	Article
出版地	BEIJING
EISSN	2210-5107
资助机构	National Basic Research Program (973 Program) of China [2010CB950604] ; National Natural Science Foundation of China [41075108]
作者邮箱	enli.wang@csiro.au
引用统计	被引频次：16[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/2S10CLM1/27239
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China 2.CSIRO Land & Water, Canberra, ACT 2601, Australia 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change LVEC, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Wang Guo-Cheng,Wang En-Li,Huang Yao,et al. Soil Carbon Sequestration Potential as Affected by Management Practices in Northern China: A Simulation Study[J]. PEDOSPHERE,2014,24(4):529-543.
APA	Wang Guo-Cheng,Wang En-Li,Huang Yao,&Xu Jing-Jing.(2014).Soil Carbon Sequestration Potential as Affected by Management Practices in Northern China: A Simulation Study.PEDOSPHERE,24(4),529-543.
MLA	Wang Guo-Cheng,et al."Soil Carbon Sequestration Potential as Affected by Management Practices in Northern China: A Simulation Study".PEDOSPHERE 24.4(2014):529-543.

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