干旱区生态环境知识资源中心(Arid): Dynamics of Land Use and Land Cover Changes in An Arid Piedmont Plain in the Middle Reaches of the Kaxgar River Basin, Xinjiang, China

Arid

DOI	10.3390/ijgi9020087
	Dynamics of Land Use and Land Cover Changes in An Arid Piedmont Plain in the Middle Reaches of the Kaxgar River Basin, Xinjiang, China
	Wei, Tianfeng 1,2; Shangguan, Donghui 1; Shen, Xia 3; Ding, Yongjian 1; Yi, Shuhua 4
通讯作者	Shangguan, Donghui
来源期刊	ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION
EISSN	2220-9964
出版年	2020
卷号	9 期号:2
英文摘要	The Kaxgar River Basin, a key section of the Tarim River Basin, is a typical ecologically fragile region that has undergone rapid changes to its spatial patterns over the preceding few decades. In particular, the expansion of salinized land has posed a severe threat to ecological restoration and economic development. This study monitored the rates and patterns of land use and land cover (LULC) changes in the plain area of Aketao County in the middle reaches of the Kaxgar River Basin. Five Landsat images (captured in 1990, 1998, 2002, 2013, and 2018) were divided into seven LULC types: built-up land, cultivated land, woodland and grassland, light-moderate salinized land, heavy salinized land, water areas, and bare land. Subsequently, their dynamic processes were analyzed. The results revealed that in 1990, the dominant LULCs were cultivated land, woodland and grassland, and bare land. Throughout the study period (from 1990 to 2018), the coverage of built-up land, cultivated land, bare land, water areas, and light-moderate salinized land increased; by contrast, that of the other LULC types decreased. The most marked LULC changes were the expansion of light-moderate salinized land (by 6.2% of the study area) and the shrinkage of woodland and grassland (by 9.4% of the study area). Almost all the analyzed LULC types underwent conversion to other types; such conversion occurred most frequently between 1998 and 2018. The conversions of woodland and grassland into cultivated land and light-moderate salinized land were the most notable phenomena. Another highly evident change was the conversion of heavy salinized land into bare land. These results revealed that the expansion of salinized land and the shrinkage of woodland and grassland in the study area were the most severe environmental changes. Therefore, ecological protection and salinization control are urgently required to enable local economic development while not exceeding the environmental carrying capacity and ensuring the safety of the green corridor in the lower reaches of the Kaxgar River Basin.
英文关键词	Kaxgar River Basin LULC remote sensing GIS
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000522449700027
WOS关键词	IMPACTS
WOS类目	Computer Science, Information Systems ; Geography, Physical ; Remote Sensing
WOS研究方向	Computer Science ; Physical Geography ; Remote Sensing
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314827
作者单位	1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Tibet Agr & Anim Husb Univ, Sch Resources & Environm, Tibet 860000, Peoples R China; 4.Nantong Univ, Sch Geog Sci, Nantong 226019, Peoples R China
推荐引用方式 GB/T 7714	Wei, Tianfeng,Shangguan, Donghui,Shen, Xia,et al. Dynamics of Land Use and Land Cover Changes in An Arid Piedmont Plain in the Middle Reaches of the Kaxgar River Basin, Xinjiang, China[J],2020,9(2).
APA	Wei, Tianfeng,Shangguan, Donghui,Shen, Xia,Ding, Yongjian,&Yi, Shuhua.(2020).Dynamics of Land Use and Land Cover Changes in An Arid Piedmont Plain in the Middle Reaches of the Kaxgar River Basin, Xinjiang, China.ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION,9(2).
MLA	Wei, Tianfeng,et al."Dynamics of Land Use and Land Cover Changes in An Arid Piedmont Plain in the Middle Reaches of the Kaxgar River Basin, Xinjiang, China".ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION 9.2(2020).