Spatiotemporal variability of soil organic carbon for different topographic and land use types in a gully watershed on the Chinese Loess Plateau

doi:10.1071/SR19317

	Spatiotemporal variability of soil organic carbon for different topographic and land use types in a gully watershed on the Chinese Loess Plateau
	Yang, Fan 1,2,3; Wei, Xiaorong 2,3; Huang, Mingbin 2,3; Li, Chenhui 3; Zhao, Xiaofang 3; Zhang, Zhongdian 3
刊名	SOIL RESEARCH
	2021-01-29
页码	13
关键词	ecological restoration land use type spatial distribution of SOC temporal change of SOC topographic type
ISSN号	1838-675X
DOI	10.1071/SR19317
通讯作者	Huang, Mingbin(hmbd@nwsuaf.edu.cn)
英文摘要	The 'Grain-for-Green' program implemented on the Loess Plateau in China has dramatically changed land use types, and subsequently enhanced the spatiotemporal variability of soil organic carbon (SOC) in the watersheds. However, the spatiotemporal variability of SOC for different topographic and land use types within small watersheds has not been adequately explored following the implementation of the 'Grain-for-Green' program. In this study, we determined the spatiotemporal variability of SOC content using the data collected in 1993, 2002, 2005, and 2012 and measured in 2018 and identified its driving factors for different topographic (tableland, sloping land, and gully) and land use types in the Wangdonggou watershed on the Loess Plateau. The spatial patterns of SOC content differed among tableland, sloping land, and gully, with higher spatial variability in gully than sloping land and tableland. The SOC content in the 0-20 cm soil layer in 2018 increased by 8.58%, 26.4%, and 22.2%, compared to 2002, for tableland, sloping land, and gully, respectively. Woodland and grassland had a great potential to sequester and stabilise carbon. The vegetation cover was a relatively dominant factor affecting SOC content throughout the watershed. Our results indicate a close relationship between SOC content and topographic, vegetation, and edaphic variables. This information is critical for understanding SOC dynamics at the watershed scale for sustainable ecological restoration.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDB40020200] ; National Natural Science Foundation of China[41571130082]
WOS关键词	SPATIAL VARIABILITY ; ECOLOGICAL CONSTRUCTION ; VEGETATION RESTORATION ; USE CONVERSION ; TOTAL NITROGEN ; EROSION ; STOCKS ; CATCHMENT ; POSITION ; STORAGE
WOS研究方向	Agriculture
语种	英语
出版者	CSIRO PUBLISHING
WOS记录号	WOS:000612620900001
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/136129]
专题	中国科学院地理科学与资源研究所
通讯作者	Huang, Mingbin
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 3.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Yang, Fan,Wei, Xiaorong,Huang, Mingbin,et al. Spatiotemporal variability of soil organic carbon for different topographic and land use types in a gully watershed on the Chinese Loess Plateau[J]. SOIL RESEARCH,2021:13.
APA	Yang, Fan,Wei, Xiaorong,Huang, Mingbin,Li, Chenhui,Zhao, Xiaofang,&Zhang, Zhongdian.(2021).Spatiotemporal variability of soil organic carbon for different topographic and land use types in a gully watershed on the Chinese Loess Plateau.SOIL RESEARCH,13.
MLA	Yang, Fan,et al."Spatiotemporal variability of soil organic carbon for different topographic and land use types in a gully watershed on the Chinese Loess Plateau".SOIL RESEARCH (2021):13.