干旱区生态环境知识资源中心(Arid): Monitoring the long-term desertification process and assessing the relative roles of its drivers in Central Asia

Arid

DOI	10.1016/j.ecolind.2019.04.067
	Monitoring the long-term desertification process and assessing the relative roles of its drivers in Central Asia
	Jiang, Liangliang 1,2,3,4,5; Jiapaer, Guli 1,2,4,5,6; Bao, Anming1,2,4,5 ; Kurban, Alishir 1,2,4,5; Guo, Hao 1,2,3,4; Zheng, Guoxiong 1,2; De Maeyer, Philippe 3,4,5
通讯作者	Jiapaer, Guli
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2019
卷号	104 页码:195-208
英文摘要	Desertification is one of the main ecological environmental problems in Central Asia. To prevent and eradicate this problem, it is extremely urgent to monitor the long-term desertification process and assess the relative roles of its drivers. Based on an analytical hierarchy process, in this research, the spatiotemporal features of the desertification process were surveyed from 1982 to 2012 using four indicators. Further analysis was focused on determining the relative importance of multiple driving factors causing desertification in different ecosystems. The results revealed significant desertification expansion in the western part of Central Asia, with the most severe desertification occurring in eastern Xinjiang Province and the Ustyurt Plateau, with mean desertification indexes (DIs) as high as 0.8. According to a change-year analysis, mutation years of desertification were observed from 1993 to 2002 for most vegetation types. The desertification process for different vegetation types results from different major driving factors. Climatic factors, including decreased precipitation, increased temperature and drought, were the main drivers of desertification, especially for grasslands, forests and sparse vegetation. The desertification process of sparse vegetation and croplands was expanded and triggered by human activities: oil and gas exploration in the southern Ustyurt Plateau and agricultural abandonment in northern Kazakhstan. The results also indicated that after the collapse of the Soviet Union, rangeland abandonment in eastern Kazakhstan triggered desertification reversion in grasslands. Furthermore, due to inefficient irrigation water use, severe salt accumulation in croplands of the Amu Darya River delta resulted in desertification expansion in this region. In Central Asia, the desertification process in forests and areas of sparse vegetation was extremely sensitive to climatic variations, while that in croplands and grasslands was vulnerable to human activities. Therefore, regional governments should strive to reverse desertification to protect and improve this fragile, arid ecological environment.
英文关键词	Desertification process Analytical hierarchy process Climate change Human activities Change-year detection
类型	Article
语种	英语
国家	Peoples R China ; Belgium
收录类别	SCI-E
WOS记录号	WOS:000470966000020
WOS关键词	ARAL SEA BASIN ; CLIMATE-CHANGE ; VEGETATION DYNAMICS ; ENVIRONMENTAL VULNERABILITY ; QUANTITATIVE ASSESSMENT ; HIERARCHY PROCESS ; LAND ; RESPONSES ; NDVI ; COVER
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215214
作者单位	1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Univ Ghent, Dept Geog, B-9000 Ghent, Belgium; 4.Sino Belgian Joint Lab Geoinformat, Urumqi 830011, Peoples R China; 5.Sino Belgian Joint Lab Geoinformat, B-9000 Ghent, Belgium; 6.CAS Res Ctr Ecol & Environm Cent Asia, Urumqi 830011, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Liangliang,Jiapaer, Guli,Bao, Anming,et al. Monitoring the long-term desertification process and assessing the relative roles of its drivers in Central Asia[J]. 中国科学院新疆生态与地理研究所,2019,104:195-208.
APA	Jiang, Liangliang.,Jiapaer, Guli.,Bao, Anming.,Kurban, Alishir.,Guo, Hao.,...&De Maeyer, Philippe.(2019).Monitoring the long-term desertification process and assessing the relative roles of its drivers in Central Asia.ECOLOGICAL INDICATORS,104,195-208.
MLA	Jiang, Liangliang,et al."Monitoring the long-term desertification process and assessing the relative roles of its drivers in Central Asia".ECOLOGICAL INDICATORS 104(2019):195-208.