南渡河流域水土流失现状及防治措施

2001年埘雷州市手要供水源地-南渡河流域的水土流失现状进行了实地勘探考察调杏，调查结果表明，南渡河流域水上流失主要集中在南渡河流域中、上游的杨家、白沙、客路、唐家、纪家、松竹八镇，六镇的水土流失面积共61．23km^2，其中，面蚀流失23．5km^2，沟蚀流失12．6km^2，崩塌流失25．15km^2。山实地调查结果可知，南渡河流域的水土流失问题已成为南渡河水系水资源保护的头号问题，调查弄清南渡河水土流失现状，采取有效治理措施保护南渡河生态环境，彻底改善南渡河水土流失现状已成为南渡河整治的重点项目。文中就南渡河水土流失的实际情况，提出相应的水土保持措施和治理措施。

Soil ersion in Nandu River valley and its countermeasures

This paper is based on the investigation on soil erosion situation of Nandu River, which the main water supply source in Leizhou. The results indicated that the soil erosion area of Nandu River basin covered mainly the middle and upper stream, that is, the six towns of Yangjia, Baisha, Kelu, Tangjia, Jijia and Songau. The total soil erosion area is 61.23 sq. km., in which surface erosion is 23.5 sq. km., ditch erosion is 12.6 sq. km., landslip erosion is 25.15 sq. km.. The soil erosion has been the priority for water resources conservation of Nandu River System. The transformation projects of Nandu River will take effective measures to protect the environment of Nandu River and improve the current situation of soil erosion in Nandu River after investigation and understanding of the current situation of soil erosion in Nandu River. Also, corresponding construction plans for water and soil conservation of Nandu River will be brought up according to its soil erosion situation.