水电站建设区表土资源评价与利用探析

Evaluation and Utilization of Surface Soil in Hydropower Station Construction Area

为了理清水电站建设区的表土资源量,通过实地调查取样分析项目区表土资源数量,测定表层土壤的理化性质,结合相关规范标准,对项目区表土数量、质量及其养分含量进行评价。结果表明:项目区的表土资源主要集中在耕地,林草地表土分布总体较薄且多为含砾石土层,项目区表土总量满足迹地恢复的覆土量,表土质量基本符合青藏高原区土地复垦林草地质量控制标准。

In order to find out the topsoil resources in the construction area of hydropower stations,the amount,quality and nutrient content of the surface soil in the project area are evaluated by field investigation and sampling to analyze the amount of surface soil resources in the project area,determine the physical and chemical properties of the surface soil in accordance with relevant norms and standards.The results show that the topsoil resources in the project area are mainly concentrated in arable land,the distribution of forest and grassland topsoil is generally thin and most are gravel-bearing soil layers,the amount of topsoil meets the amount of cover soil for site restoration,and the topsoil quality is basically in line with the forest and grassland quality control standards for land reclamation in the Qinghai-Tibet Plateau.