生态影响综合评价方法在公路选线中的应用

Application of Comprehensive Assessment of Ecological Impact in Highway Route Selection

针对高速公路建设项目的特点,从指标选取入手,采取定量分析的手段,对比研究了两条线路工程建设对生态环境的影响程度。结果表明,用植被覆盖率、生物量、滞洪能力、土壤变化、农田占用、水土流失量等6项指标来定量分析生态影响程度效果较好,采用综合生态影响评价指数法确定线路的舍取是可行的。

This paper studied the impact of highway route selection on the ecological environment,using quantitative analysis method,to compare the impacts arising from the highway project under the two route schemes and starting with the impact index selection.The study results showed that it was suitable for assessing the impact of highway route selection on the ecological environment using quantitative analysis indexes of vegetation coverage,biomass,flood detention ability,soil character change,cropland occupation and water and soil erosion,and it was suitable for route selection using the comprehensive ecological impact assessment method.