Soil and water conservation benefits method and hydrological method are adopted in the previous studies on effect of soil and water conservation on hydrological and water resources.
2
水文法和水保法是分析计算流域治理减水减沙效益常用的两种方法,但都存在一些问题。
Hydrologic method and soil conservation method are two usual methods for calculating sediment and runoff reduction benefit brought by watershed management, but both have some problems.
3
设计了真空吸收法实验装置,利用该装置测定的保水率与传统滤纸法进行了对比。
The influencing factors of water-retention rate are analyzed and testing parameters are determined.