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陕西省略阳县在20 a的“长治”工程实践中,探索出适合小流域沟道治理的生物砂堤沟道治理技术。介绍了实施生物砂堤技术的方法、步骤及其技术要点。根据水土流失规律,指出了生物砂堤在水土流失防治体系中的作用。通过与浆砌河堤在工程量及投劳耗费方面的比较,得出生物砂堤具有节约成本的优势,值得在小流域综合治理中应用推广。
Lueyang County, Shaanxi Province In the “Changzhi” engineering practice of 20 years, it explored the technology of biological sand embankment management suitable for channel management in small watershed. The methods, steps and technical points of implementing the biological sandbank technology are introduced. According to the laws of soil and water loss, the role of biological sand bank in soil erosion prevention and control system is pointed out. By comparing with the construction volume and labor cost of mortar river embankment, it is concluded that the biological sand embankment has the advantage of cost saving, and it is worth to apply it in the comprehensive management of small watershed.