干旱区生态环境知识资源中心(Arid): 近20 a叶尔羌河流域生态服务价值对土地利用/覆被变化的响应

Arid

	近20 a叶尔羌河流域生态服务价值对土地利用/覆被变化的响应
其他题名	Response of Ecosystem Service Value to Land Use /cover Change in the Yarkant River Basin in Recent 20 Years
	张广朋 1; 徐海量2 ; 杜清 2; 张沛 2
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2016
卷号	33 期号:6 页码:1303-1310
中文摘要	为探究综合治理项目实施前后叶尔羌河流域生态与环境变化,基于叶尔羌河流域1990、2000、2010年土地利用遥感解译数据,选取符合干旱区特点的Constanza价值系数,并根据研究区实际情况进行修正计算,对比分析了19902010年土地利用/覆盖及生态服务价值的动态变化特征。结果表明: ① 19902010年,叶尔羌河流域土地利用/覆被变化总体速度为9.12%,变化较强烈; 20002010年变化速度(6.69%)较19902000年(15.76%)缓慢。② 20 a内耕地、建设用地和水域面积分别增加了35.58%、28.21%和10.39%,林地和草地分别减少了11.36%和9.91%,未利用土地面积变化不明显。综合治理项目实施后,研究区植被退化、土地沙化、盐渍化等生态问题仍然存在且有发展。③ 1990、2000年和2010年研究区生态服务价值分为330.32 * 10~8元、323.62 * 10~8元和309.41 * 10~8元,生态服务价值总量呈减少趋势,且减少的速率加快。林地和草地面积的减少是生态服务价值总量减少的主要原因。经敏感性分析验证,估算结果对生态服务价值系数的变化缺乏弹性,因此结果是可信的,修正后的价值系数适用于研究区。
英文摘要	In this paper,the land use /cover change in the Yarkant River Basin during the period from 1990 to 2010 was analyzed using the land use data from the RS images in 1990,2000,and 2010. The ecosystem service values were estimated with the value evaluation method. The results are as follows: ① During the period from 1990 to 2010,the land use /cover change in the Yarkant River Basin was intensive with a rate of 9.12 %. The land use / cover change rate during the period from 2000 to 2010 was lower than that during the period from 1990 to 2000; ② In recent 20 years,the areas of cultivated land,building land and waters were enlarged by 35.58%,28.21% and 10.39%,those of woodland and grassland,however,were reduced by 11.36% and 9.91%,respectively, and the change of unused land was not obvious. After implementing the comprehensive management project,the area reduction rates of woodland and grassland were sped up,and the vegetation degeneration,land desertification and soil salinization still remained and even were developed; ③ The ESV(ecosystem service values) based on modification of Costanza’s model in 1990,2000 and 2010 were 330.32 * 10~8,323.62 * 10~8 and 309.41 * 10~8 yuan RMB respectively. The total ESV was in a decrease trend,which was mainly caused by the reduction of the ESV of woodland and grassland. The results of sensitivity analysis revealed that the estimated results to the change of the ESV coefficients were inelastic,so the results were credible. The modified ESV coefficients were suitable for the study area.
中文关键词	土地利用/覆被变化 ; 动态度 ; 生态服务价值 ; 敏感度 ; 叶尔羌河流域
英文关键词	land use /cover change dynamic degree ecosystem service value sensitivity analysis the Yarkant River Basin
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:5859959
来源机构	中国科学院新疆生态与地理研究所 ; 新疆农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234340
作者单位	1.新疆农业大学林学与园艺学院, 乌鲁木齐, 新疆 830052, 中国; 2.中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	张广朋,徐海量,杜清,等. 近20 a叶尔羌河流域生态服务价值对土地利用/覆被变化的响应[J]. 中国科学院新疆生态与地理研究所, 新疆农业大学,2016,33(6):1303-1310.
APA	张广朋,徐海量,杜清,&张沛.(2016).近20 a叶尔羌河流域生态服务价值对土地利用/覆被变化的响应.干旱区研究,33(6),1303-1310.
MLA	张广朋,et al."近20 a叶尔羌河流域生态服务价值对土地利用/覆被变化的响应".干旱区研究 33.6(2016):1303-1310.