干旱区生态环境知识资源中心(Arid): Soil organic carbon dynamics in Xilingol grassland of northern China induced by the Beijing-Tianjin Sand Source Control Program

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	Soil organic carbon dynamics in Xilingol grassland of northern China induced by the Beijing-Tianjin Sand Source Control Program
	Zhang Liangxia; Cao Wei; Fan Jiangwen
来源期刊	Frontiers of Earth Science
ISSN	2095-0195
出版年	2017
卷号	11 期号:2 页码:407-415
英文摘要	To mitigate impacts of sandstorms on northern China, the Chinese government launched the Beijing-Tianjin Sand Source Control Program (BTSSCP) in 2000. The associated practices (i.e., cultivation, enclosure, and aerial seeding) were expected to greatly enhance grassland carbon sequestration. However, the BTSSCP-induced soil organic carbon (SOC) dynamics remain elusive at a regional level. Using the Xilingol League in Inner Mongolia for a case study, we examined the impacts from 2000 to 2006 of the BTSSCP on SOC stocks using the IPCC carbon budget inventory method. Results indicated that over all practices SOC storage increased by 1.7%, but there were large differences between practices. SOC increased most rapidly at the rate of 0.3 Mg C·ha~(-1)·yr~(-1) under cultivation, but decreased significantly under aerial seeding with moderate or heavy grazing (0.3 vs.0.6 Mg C·ha~(-1) ·yr~(-1)). SOC increases varied slightly for grassland types, ranging from 0.10 Mg C ·ha~(-1)·yr~(-1) for temperate desert steppe to 0.16 Mg C · ha~(-1) · yr~(-1) for temperate meadow steppe and lowland meadow. The overall economic benefits of the SOC sink were estimated to be 4.0 million CNY. Aerial seeding with no grazing was found to be the most cost-effective practice. Finally, we indicated that at least 55.5 years (shortest for cultivation) were needed for the grasslands to reach their potential carbon stocks. Our findings highlight the importance and effectiveness of BTSSCP in promoting terrestrial carbon sequestration which may help mitigate climate change, and further stress the need for more attention to the effectiveness of specific practices.
英文关键词	grassland carbon sequestration ecological restoration Beijing-Tianjin Sand Source Control Program (BTSSCP) IPCC carbon budget inventory method
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Science & Technology - Other Topics
CSCD记录号	CSCD:6025547
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335839
作者单位	Zhang Liangxia, College of Applied Meteorology, Nanjing University of Information Science and Technology, Jiangsu Key Laboratory of Agricultural Meteorology;;Key Laboratory of Land Surface Pattern and Simulation, CAS, Nanjing, Jiangsu 210044, China.; Cao Wei, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Key Laboratory of Land Surface Pattern and Simulation, CAS, Beijing 100101, China.; Fan Jiangwen, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Key Laboratory of Land Surface Pattern and Simulation, CAS, Beijing 100101, China.
推荐引用方式 GB/T 7714	Zhang Liangxia,Cao Wei,Fan Jiangwen. Soil organic carbon dynamics in Xilingol grassland of northern China induced by the Beijing-Tianjin Sand Source Control Program[J],2017,11(2):407-415.
APA	Zhang Liangxia,Cao Wei,&Fan Jiangwen.(2017).Soil organic carbon dynamics in Xilingol grassland of northern China induced by the Beijing-Tianjin Sand Source Control Program.Frontiers of Earth Science,11(2),407-415.
MLA	Zhang Liangxia,et al."Soil organic carbon dynamics in Xilingol grassland of northern China induced by the Beijing-Tianjin Sand Source Control Program".Frontiers of Earth Science 11.2(2017):407-415.