摘要
以2000—2015年的遥感影像资料和生态输水数据为基础数据源,利用ENVI和GIS数据分析处理工具,基于时间轨迹分析方法研究塔里木河下游土地利用/覆被变化(LUCC)对生态输水的响应。结果表明:2000—2015年的16次、1670 d间歇性生态输水,使林地和草地分别增加了823个和1347个像元,耕地、湿地和人工用地分别减少了1422个、736个和222个像元,其他用地增加了210个像元;植被面积总体上呈扩大趋势,2015年较2000年净增植被面积382.85 km^(2),人工表面增加356.10 km^(2);戈壁、裸土、沙漠等其他用地面积共计减少了738.95 km^(2);土地利用变化主要发生在塔里木河下游两岸的河水漫溢、滞留区,呈现出破碎化、不规则化和复杂化的趋势。
Based on remote sensing image data and ecological water conveyance data from 2000 to 2015,this paper studies the response of land-use/land cover change(LUCC)to ecological water conveyance in the lower reaches of the Tarim River using ENVI and GIS data analysis and processing tools.The results show that intermittent ecological water conveyance of 16 times and 1670 days from 2000 to 2015 makes woodland and grassland increase 823 and 1347 cell dollars respectively,cultivated land,wetlands and artificial land decease 1422,736 and 222 cell dollars,respectively,and other lands increase 210 cell dollars.On the whole,the vegetation area showed an expanding trend.In 2015,compared with 2000,the net vegetation area increased by 382.85 km^(2),and the artificial surface increased by 356.10 km^(2).The total area of Gobi,bare soil,desert and other land use decreased by 738.95 km^(2).The land use change mainly occurs in the overflowing and stranded area of the river in the lower reaches of the Tarim River River,which shows the trend of fragmentation,irregularity and complication.
作者
王珊珊
王金林
周可法
汪玮
万应彩
WANG Shanshan;WANG Jinlin;ZHOU Kefa;WANG Wei;WAN Yingcai(State Key Laboratory of Desert and Oasis Ecology,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,China;Xinjiang Key Laboratory of Mineral Resources and Digital Geology,Urumqi 830011,China;Xinjiang Research Centre for Mineral Resources,Chinese Academy of Sciences,Urumqi 830011,China;University of Chinese Academy of Sciences,Beijing 100049,China)
出处
《水资源保护》
CAS
CSCD
北大核心
2021年第2期69-74,80,共7页
Water Resources Protection
基金
国家自然科学基金(U1803241)
新疆维吾尔自治区科技计划重大专项(2017B03017-2)
自治区创新环境(人才、基地)建设专项(人才专项计划-天山青年计划)(2019Q033)。
关键词
土地利用/覆被变化
生态输水
遥感数据
塔里木河下游
land-use/land cover change
ecological water conveyance
remote sensing data
lower reach of Tarim River
