黄土高原土壤水资源评价及生态恢复研究

Evaluation of Soil Water Resource and Study of Ecological Recovery in Loess Plateau

从土壤水资源的特性出发,定义了土壤水资源及土壤水资源潜力的概念,运用四水转化等理论提出土壤水资源的评价方法。结合黄土高原地区好水川流域实际,计算了研究区的土壤水资源及其潜力状况。根据好水川流域土壤水资源及土壤水资源潜力评价结果,提出了该流域生态恢复的措施:加大退耕还林还草力度、保障流域下游水源供给,进一步筛选出适宜于当地的林草植被品种,深入库坝功能转化基础研究、减少库面水蒸发损失。

Based on soil water characteristics, it defined the concept of soil water resources and soil water potential and put forward the soil water resources evaluation method by using the theory of four water transformations. Combining with the actual condition of Haoshuichuan watershed, it calculated the soil water resources in the studied area and its potential condition. According to the evaluation results of Haoshuichuan watershed soil water resources and soil water resources potential, it put forward the following measures of ecological restoration of the watershed, increasing enforcement of return farmland to forest or grassland, ensuring water supply to downstream, further screening out suitable varieties for local vegetation, researching function transformation of reservoir and dam and reducing reservoir＇ s evaporation.