广西高速公路建设生态影响区划研究  

Study of Ecological Impact Regionalization of Expressway Construction in Guangxi

作　　者：戴泉玉[1] 陈述悦[1] 顾卫[1] 齐藤诚[1] 

机构地区：[1]北京师范大学地表过程与资源生态国家重点实验室,北京100875

出　　处：《公路交通科技》2012年第6期150-158,共9页Journal of Highway and Transportation Research and Development

基　　金：国家自然科学基金项目(30870467)

摘　　要：在综合分析广西公路建设生态影响特点的基础上,探讨了生态影响区划的原则和依据,建立了各级生态影响区单元划分的指标体系。本区划采用二级区划,即地貌侵蚀动力大区和生态敏感区。其中各级区划指标包括:海拔高度、年暴雨天数、年干旱天数、公路隔离效应指数、植被类型、土地石漠化程度和自然保护区分布等。本区划共分为4个一级区和11个二级区,便于在公路设计、建设和营运管理中采取目标明确的影响抑制措施。Based on comprehensive analysis of the ecological impact characteristics of road construction in Guangxi, we discussed the principle and basis of ecological impact regionalization, and constituted the graded index system of ecological impact regionalization. We adopted two-level plot regionalization, including dynamic geomorphic erosion regions and ecology susceptible regions. There are several indexes adopted in the graded index system, such as altitude, annual downpour days, annual drought days, isolation effect index of existing highways, vegetation type, degree of karst rocky desertification and distribution of nature reserve, etc. The regionalization was divided into 4 first-level regions and 11 second-level regions. This work will facilitate to adopt protective measures for the regions of highway at design, construction and management periods.

关 键 词：环境工程 高速公路 生态影响 区划 

分 类 号：X321.01[环境科学与工程—环境工程]