夹北线大山一号、二号特大桥改建工程环境影响报告书I目录1总论.................................................................................................................11.1前期工作简介............................................................................................11.2环境影响评价实施过程............................................................................21.3编制依据....................................................................................................31.4评价目的和评价原则................................................................................71.5评价等级、范围和时段............................................................................81.6评价标准..................................................................................................101.7主要环境保护目标..................................................................................131.8主要环境问题..........................................................................................161.9环境影响评价结论..................................................................................162工程概况与工程分析.....................................................................................172.1工程概况..................................................................................................172.2工程与城市规划相容性分析..................................................................332.3工程分析..................................................................................................363工程所在地区环境概况.................................................................................453.1自然环境概况..........................................................................................453.2社会环境概况..........................................................................................483.3沿线环境质量..........................................................................................514生态环境影响评价.........................................................................................534.1概述........................................................