干旱区生态环境知识资源中心(Arid): Soil Water Content and Temperature Dynamics under Grassland Degradation: A Multi-Depth Continuous Measurement from the Agricultural Pastoral Ecotone in Northwest China

Arid

DOI	10.3390/su11154188
	Soil Water Content and Temperature Dynamics under Grassland Degradation: A Multi-Depth Continuous Measurement from the Agricultural Pastoral Ecotone in Northwest China
	Yang, Wenjing 1; Wang, Yibo 1,2; He, Chansheng 1,3; Tan, Xingyan 1; Han, Zhibo 1
通讯作者	Wang, Yibo ; He, Chansheng
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2019
卷号	11 期号:15
英文摘要	The agricultural pastoral ecotone (APE) in Northwest China is an ecological transition zone in the arid area with a very fragile ecosystem. In recent years, the ecosystem has deteriorated sharply, and increasing desertification has made the regional ecosystem more vulnerable and sensitive. In this study, we analyzed (using classical statistical methods) spatial and temporal variations in soil water content (SWC) from 14 September 2016 to 22 April 2019 for high and low vegetation in two grassland sites in Yanchi County, Ningxia. The results showed that the largest average seasonal SWC occurred in autumn. The SWC of the first three layers (0 divided by 15 cm) of the soil profile responded strongly to precipitation, whereas the SWC in deeper soil (30 divided by 50 cm) could only be recharged markedly after continuous precipitation. Additionally, the growing process of plants proved to be a cause of variability in soil moisture profiles. Vegetation degradation sped up the course of desertification and decreased soil organic carbon content. These changes left the soil increasingly desiccated and enhanced soil variability. Meanwhile, vegetation degradation also prompted changes in soil temperature and shortened the soil's frozen time in winter. With the acceleration of global warming, if the process of vegetation degeneration continues and soil temperatures keep rising, the ecosystem is likely to undergo irreversible degradation.
英文关键词	soil moisture spatiotemporal variation soil properties precipitation
类型	Article
语种	英语
国家	Peoples R China ; USA
开放获取类型	gold, Green Submitted
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000485230200193
WOS关键词	DIFFERENT LAND COVERS ; LEAF-AREA INDEX ; SPATIAL VARIABILITY ; MOUNTAINOUS AREA ; MOISTURE CONTENT ; VEGETATION ; CATCHMENT ; PLATEAU ; DESERTIFICATION ; ECOSYSTEMS
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219014
作者单位	1.Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Gansu, Peoples R China; 2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China; 3.Western Michigan Univ, Dept Geog, Kalamazoo, MI 49008 USA
推荐引用方式 GB/T 7714	Yang, Wenjing,Wang, Yibo,He, Chansheng,et al. Soil Water Content and Temperature Dynamics under Grassland Degradation: A Multi-Depth Continuous Measurement from the Agricultural Pastoral Ecotone in Northwest China[J]. 兰州大学,2019,11(15).
APA	Yang, Wenjing,Wang, Yibo,He, Chansheng,Tan, Xingyan,&Han, Zhibo.(2019).Soil Water Content and Temperature Dynamics under Grassland Degradation: A Multi-Depth Continuous Measurement from the Agricultural Pastoral Ecotone in Northwest China.SUSTAINABILITY,11(15).
MLA	Yang, Wenjing,et al."Soil Water Content and Temperature Dynamics under Grassland Degradation: A Multi-Depth Continuous Measurement from the Agricultural Pastoral Ecotone in Northwest China".SUSTAINABILITY 11.15(2019).