干旱区生态环境知识资源中心(Arid): 新疆和田河流域土地利用及其生态服务价值变化

Arid

	新疆和田河流域土地利用及其生态服务价值变化
其他题名	Study on Land Use Change and Its Effect on Ecological Service Value in the Hotan River Basin,Xinjiang
	陈忠升; 陈亚宁; 李卫红; 黄湘
ISSN	1001-4675
出版年	2009
卷号	26 期号:6 页码:832-839
中文摘要	土地利用结构决定土地生态系统服务价值,生态服务价值也反映了土地利用结构的生态优劣.基于遥感和GIS技术及数理统计学方法,利用1990年、1999年、2002年和2005年遥感影像解译得到的4期土地利用数据,对和田河流域1990-2005年土地利用变化进行定量分析,估算出研究区15年间的生态服务价值变化量.结果表明:①耕地、林地和城乡建设用地面积增加,草地、水域和未利用地面积减少;研究区土地利用处于发展时期,土地利用综合程度日益提高;优势度没有发生明显的变化,未利用地一直最高.②土地生态系统服务价值量有所增加,土地利用总体生态效应趋良.但环境也存在着局部恶化,主要表现在上游山地生态系统冰川退缩、天然植被退化;中游绿洲生态系统耕地扩张迅速,土壤盐渍化,人工渠、水库增加显著;下游荒漠生态系统植被退化,水资源严重不足,土地沙漠化.
英文摘要	It is of significance to study land use change and its effect on ecosystem service value.Ecosystem serv-ice value is affected by land use structure,and ecological service value reflects the ecological situation of land use structure.In this paper,the land use change in the Hotan River Basin in Xinjiang during the period from 1990 to 2005 is quantitatively analyzed using the land use data interpreted from the RS images in 1990,1999,2002 and 2005 based on RS and GIS means and statistical approach.On which the ecological service values in the study area in recent 15 years are estimated.The results are as follows:(1)At the 15-year scale,the areas of cultivated land,woodland and building land in the Hotan River Basin were enlarged,while the areas of steppe,unused land and waters were reduced;land use in the study area was at developing stage,and the comprehensive level of land use was gradually increased;the dominance degree change was not obvious,and the dominance degree of unused land was the highest all along;(2)The ecosystem service value was increased to some extent and the ecological effect was tended towards a virtuous circle through land use change in the Hotan River Basin.However,the ecological environment was deteriorated in some areas,such as the shrinkage of modern glaciers and the degeneration of natu-ral vegetation in mountainous region in the upper reaches,enlargement of cultivated land,soil salinization and ob-vious increase of irrigation canals and reservoirs in the middle reaches,and degeneration of natural vegetation,seri-ous shortage of water resources and land desertification in the lower reaches.
中文关键词	土地利用 ; 生态系统 ; 服务价值 ; 和田河流域 ; 新疆
英文关键词	land use ecosystem service value Hotan River Basin Xinjiang.
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURAL ECONOMICS POLICY
WOS研究方向	Agriculture
CSCD记录号	CSCD:3793339
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/2XILL650/223635
作者单位	中国科学院新疆生态与地理研究所, 中国科学院绿洲生态与荒漠环境重点实验室, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	陈忠升,陈亚宁,李卫红,等. 新疆和田河流域土地利用及其生态服务价值变化[J]. 中国科学院新疆生态与地理研究所,2009,26(6):832-839.
APA	陈忠升,陈亚宁,李卫红,&黄湘.(2009).新疆和田河流域土地利用及其生态服务价值变化.,26(6),832-839.
MLA	陈忠升,et al."新疆和田河流域土地利用及其生态服务价值变化".26.6(2009):832-839.