摘要
生态清洁小流域在规划治理的过程中,需要现势、宏观、详细、准确的基础信息,遥感技术为基础信息数据的获取提供了快速有效的技术手段。以高分辨率遥感影像和数字高程模型数据为主要数据源,运用遥感技术和数学模型,监测与分析了北京市延庆县南湾小流域的土地利用、坡度、沟道、植被覆盖、土壤侵蚀等基础信息的空间布局。通过对基础信息的叠加、缓冲和路径等空间分析,辅助划定了南湾小流域生态保护区31.41hm2,生态治理区348.04hm2,生态修复区1 788.38hm2,其中重点治理区域面积212.93hm2,占小流域总面积的9.8%。最后结合现场调查,辅助布设了封禁、经济林、节水灌溉等9项小流域治理措施,研究结果可为小流域规划治理初步设计提供科学依据。
Ecologic and clean-type small watershed needs present, macroscopical, detailed, and accurate basic information during the process of planning and management. Remote sensing technology provides a fast and effective technical means for the acquisition of fundamental information. Using high resolution remote sens- ing image and digital elevation model data as the main data source, remote sensing technology and mathemat- ical modeling were applied to monitor and analyze the spatial layout of land use, slope, channel, vegetation coverage, soil erosion and other basic information of Nanwan watershed in Yanqing County, Beijing. By con- ducting the spatial analysis techniques including overlay, buffer, path planning, etc. on these information, the ecological preserve zoon（31.41 hm2）, ecological management zoon（348.04 hm2） and ecological rehabili- tation zoon（1 788.38 hm2） for Nanwan watershed was delimited. Main management zoon covers an area of 212.93 hm2 , which accounts for 9.8% of the total area of the small watershed. Combined with field survey, this work auxiliary designed 9 control measures including setting prohibited area, economic forest, water- saving irrigation, etc. Results can provided scientific basis for the planning management primary design of small watershed.
出处
《水土保持研究》
CSCD
北大核心
2014年第1期127-131,2,共5页
Research of Soil and Water Conservation
基金
北京市科技计划重点项目"北京市水资源遥感动态监测研究与应用"(D11110600030000)
关键词
遥感技术
生态清洁小流域
规划治理
remote sensing technology
ecologic and clean-type small watershed
planning management
