热带雨林地区高速公路建设生态评价指标的探讨

Discussion About Index of Ecological Evaluation for Expressway in Tropical-Rain-Forest Area

结合热带雨林自然环境特点和高速公路建设对生态环境影响的具体特征,探讨了思小高速公路环境影响生态评价指标应遵循的原则,阐述了思小高速公路环境影响生态评价指标选定的方法。建立了一套适合热带雨林地区“生态公路”建设理念的高速公路环境影响生态评价指标体系,体系的确定既考虑了生态分区的基本方法和指标量化的可行性,还实现了通过指标的评定,能够反映公路建设对生态环境的影响程度,能计算显示出生态影响的重点地段和敏感区域,并且用各生态因子的分值直观看出重要的生态环境影响因子,由此给出针对性强和有效的生态防护措施。

According to the natural environment of the tropical rain forest and the environment influence on experssway construction,the principle of indexes for ecological evaluation is discussed and the method to determine indexes of ecological evaluation expound for the Simao ; Xiaomenyang Expressway. Last, a set of new index systems is achieved, in the system, the basic theories of the ecological subzone and the index quantization possibility are considered. Through index assessment, it is carried out that the influence degree of highway construction on the ecdogy environment can be reflected, the key zone and the sensitive zone of ecdogical influence computed and a look at gene taken. On this basis, the preventive measures on ecology are given.