基于探地雷达的地下水土流失研究

Study on Underground Soil and Water Loss Based on Ground Penetrating Radar

西南山区地下水土流失是水土流失的重要途径之一,而表层岩溶带是整个地表物质、生物迁移和转化最活跃的部分,是地表水土物质迁移的主要通道。利用探地雷达对研究区内表层岩溶带发育状况开展实测调查,初步构建喀斯特坡耕地表层岩溶带结构特征、发育状况勘测方法,为判别喀斯特地区地下水土流失方式与途径提供基础数据,以期为西南山区水土流失治理、水土资源优化配置,以及石漠化生态恢复等相关工程措施方案制订提供科学依据。

The underground soil and water loss of southwestern mountainous area is one of the key ways of soil and water loss and the epikarst zone is the most active part of the whole surface material and biological migration and transformation and also is the main channel of migration of surface material. The paper conducted actual survey on the development status of epikarst zone in the studied area by using ground penetrating radar and preliminarily established a survey method of structural features and development status of epikarst zone of karst slope farmland.This had provided basic data for judging the ways and means of underground water and soil loss of karst area and for providing scientific basis for the preparation of relevant engineering measures plans of soil and water loss treatment,optimal allocation of soil and water resources and rocky desertification ecological restoration of southwestern mountainous area.