摘要
生态环境质量评价是定量描述一个区域生态环境优劣程度的重要手段,可以定量描述环境的优劣程度。本文依据生态环境状况评价技术规范,以永定河流域2009年TM影像为主要信息源,结合其他辅助资料,在地理信息技术支持下,提出了适合小流域生态环境评价的指标体系及综合指数评价方法,并运用该方法从生物丰度、植被覆盖、水网密度、土壤水分四个方面对永定河流域(河北—北京段)2009年的生态环境质量进行了综合评价。研究结果表明:2009年,永定河流域生态环境质量处于良好状态。
Ecological environmental quality assessment is an important means to quantitatively discribe a regional ecological environment quality and quantitatively discribe the environmental quality. Based on the ecological environment evaluation specification and the TM images of Yongding River Basin( from Hebei to Beijing) in 2009 as the main information. Supported by GIS technology and combined with other accessory data,the paper put forward the suitable measures for small watershed ecological environment evaluation index system and comprehensive index evaluation method. This method can evaluate the quality of the ecological environment of the Yongding River Basin,including biological abundance,vegetation cover,water network density and soil moisture. The results showed that the ecological environment quality in the study area was in good condition.
出处
《中国人口·资源与环境》
CSSCI
北大核心
2013年第S2期348-351,共4页
China Population,Resources and Environment
基金
林业科技成果国家级项目推广项目"都市森林景观三维可视化表达技术示范推广"(编号:201146)
北京市科技计划项目(编号:D090409004009003)
北京市自然科学基金(编号:09D0297)
