摘要
和田河是塔里木河的源流之一,同时也是沙尘暴高发区之一,生态环境脆弱。为了维护和田河生态廊道的生态系统和生物多样性,本文基于遥感影像数据,分析了和田河流域土地利用/覆被以及植被覆盖的时空变化特征,利用潜水蒸发法以及定额法确定了生态廊道所需的生态需水量。结果表明,和田河流域林地面积呈减少趋势,耕地以及建筑用地面积不断增加。基于分析结果提出了相应的对策与建议,研究结果可为塔里木河流域的生态文明建设提供理论依据。
The Hetian River is one of the origins of the Tarim River,and it is also one of the areas with high incidence of sandstorms,and its ecological environment is fragile.In order to maintain the ecosystem and biodiversity of the Hetian River ecological corridor,this paper analyzes the temporal and spatial variation characteristics of land use/cover and vegetation cover in the Hetian River basin based on remote sensing image data,and determines the ecological water demand of ecological corridor by using phreatic evaporation method and quota method.The results show that the area of forest land in the Hetian River basin is decreasing,while the area of cultivated land and construction land is increasing.Based on the analysis results,the corresponding countermeasures and suggestions are put forward,and the research results can provide theoretical basis for ecological civilization construction in the Tarim River basin.
作者
王亚军
WANG Yajun(Tarim River Basin Mainstream Administration,Alar 843000,China)
出处
《水资源开发与管理》
2021年第12期53-58,72,共7页
Water Resources Development and Management
基金
中国科学院“西部青年学者”项目(2019-XBQNXZ-A-001)
中国科学院科技服务网络计划(STS计划)项目(KFJ-STS-QYZD-114)。
关键词
和田河
土地利用
植被覆盖
生态需水量
the Hetian River
land use
vegetation cover
ecological water demand
