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从五十年代后期开始,王家沟流域逐步建成了一批大、中、小型淤地坝工程。经过三十多年的不断完善和提高,这些工程在拦泥淤地、抬高侵蚀基点、发展农业生产等方面,正在发挥着良好的作用。但是,如何定量地反映这些淤地坝工程的经济效益,还是一个亟待研究和解决的重要问题。为使淤地坝建设的决策放在经济可行性论证的基础上,我们根据调查研究的资料,对建坝时间较长、代表性较强的离石县王家沟流域淤地坝工程的经济效益进行了初步分析。
Since the late 1950s, a batch of large, medium and small war dam projects have been gradually built up in Wangjiagou watershed. After more than 30 years of continuous improvement and improvement, these projects are playing a very good role in the fields of blocking mudslides, raising the erosion threshold and developing agricultural production. However, how to quantitatively reflect the economic benefits of these silt dam projects is still an important issue to be studied and solved urgently. In order to make the decision on the construction of silt dam on the basis of economic feasibility study, based on the data of investigation and study, we analyzed the economic benefits of siltation dam project in Wangjiagou Watershed of Lishi County, which has a long history and strong representativeness Conducted a preliminary analysis.