干旱区生态环境知识资源中心(Arid): Spatial-temporal changes in vegetation cover in a typical semi-humid and semi-arid region in China: Changing patterns, causes and implications

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DOI	10.1016/j.ecolind.2018.11.037
	Spatial-temporal changes in vegetation cover in a typical semi-humid and semi-arid region in China: Changing patterns, causes and implications
	Liu, Saiyan 1; Huang, Shengzhi 1; Xie, Yangyang 2; Wang, Hao 3; Huang, Qiang 1; Leng, Guoyong 4; Li, Pei 1; Wang, Lu 1
通讯作者	Huang, Shengzhi
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2019
卷号	98 页码:462-475
英文摘要	As a principal part of terrestrial ecological environment, vegetation is dominant in maintaining the function of terrestrial ecosystem. In order to systematically study the change patterns, causes, and implications of vegetation cover in a typical semi-humid and semi-arid region under changing environments, the Wei River Basin (WRB) was selected as the case study. Spatial-temporal changing patterns of vegetation cover in the WRB were firstly examined based on satellite-based Normalized Difference Vegetation Index (NDVI). Then, the underlying causes were studied by investigating the relationships among precipitation, temperature and soil moisture (SM) condition using the cross wavelet technique. Furthermore, implications of changing vegetation cover on runoff and sediment load were also analyzed. Results indicated that: (1) significant increasing trends of vegetation cover were detected at annual scale; and seasonal vegetation cover in the WRB is characterized with significant increasing trends in spring and autumn, while insignificant decreasing trend of summer vegetation cover in the upstream and midstream; (2) stationarity of annual NDVI is invalid with change points identified in all subregions of the WRB; (3) the correlations between annual NDVI series and precipitation, temperature and SM series demonstrate that significant increasing vegetation cover in the WRB are more influenced by temperature and SM condition than precipitation, anthropogenic factor however is also another reason for changing vegetation cover in the basin; and (4) statistically significant negative correlations between NDVI and runoff, sediment discharge imply that aside from human activities, increasing vegetation cover partially contributes to the reduction of runoff and sediment in the WRB. These findings are helpful for scientific assessment of ecological restoration projects, thereby facilitating local soil and water conservation.
英文关键词	Vegetation cover Soil moisture Runoff Sediment load The Wei River Basin The Loess Plateau
类型	Article
语种	英语
国家	Peoples R China ; England
收录类别	SCI-E
WOS记录号	WOS:000464891100046
WOS关键词	ECOSYSTEM RESPIRATION COMPONENTS ; WEI RIVER-BASIN ; CLIMATE-CHANGE ; LOESS PLATEAU ; SOIL-MOISTURE ; YELLOW-RIVER ; RESPONSES ; NDVI ; DYNAMICS ; RUNOFF
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构	University of Oxford
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215191
作者单位	1.Xian Univ Technol, State Key Lab Base Ecohydraul Engn Arid Area, Xian 710048, Shaanxi, Peoples R China; 2.Res Inst Modern Rural Water Conservancy, Sch Hydrol Energy & Power Engn, Yangzhou 225009, Jiangsu, Peoples R China; 3.China Inst Hydropower & Water Resources, State Key Lab Simulat & Regular Water Cycle River, Beijing 100038, Peoples R China; 4.Univ Oxford, Environm Change Inst, Oxford OX1 3QY, England
推荐引用方式 GB/T 7714	Liu, Saiyan,Huang, Shengzhi,Xie, Yangyang,et al. Spatial-temporal changes in vegetation cover in a typical semi-humid and semi-arid region in China: Changing patterns, causes and implications[J]. University of Oxford,2019,98:462-475.
APA	Liu, Saiyan.,Huang, Shengzhi.,Xie, Yangyang.,Wang, Hao.,Huang, Qiang.,...&Wang, Lu.(2019).Spatial-temporal changes in vegetation cover in a typical semi-humid and semi-arid region in China: Changing patterns, causes and implications.ECOLOGICAL INDICATORS,98,462-475.
MLA	Liu, Saiyan,et al."Spatial-temporal changes in vegetation cover in a typical semi-humid and semi-arid region in China: Changing patterns, causes and implications".ECOLOGICAL INDICATORS 98(2019):462-475.