岩溶地区公路建设水环境问题及防治对策——以贵州省为例

Tthe promblem and countermeasures for the water enviroment of highway construction in karst areas——A case study of Guizhou

岩溶地区公路建设水环境问题是对水环境的破坏和污染。通过对贵遵、贵新、贵黄等高速公路水环境的野外调查和研究,总结了贵州岩溶地区公路建设水环境破坏的6种形式,即①改变水流通方向;②阻断地下水补给源;③截断地下水的流通路径;④阻断水的排泄口;⑤复合型的水环境破坏类型;⑥施工扰动造成的水环境破坏和水污染的两个阶段,即公路施工期和营运期对水环境的污染,并结合不同的岩溶地貌类型提出了相应的防治措施。

The water environmental problem is destruction and pollution caused by highway construction in karst area. From the field investigations along highways of Guiyang - Zunyi, Guiyang - Xinzhai and Guiyang - Huangguoshu, there are six types of water environment destruction caused by highway construction. They are chang of flow direction, stop of the source of groundwater supply, cut of the passage of the groundwater, composite groundwater enviroment destruction and two phases of water environment destruction and water pollation caused by highway construction. The corresponding countermeasures are also presented in the paper.