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山东省平度县小流域,总面积21.82平方公里,其中耕地3434亩,占10.49％;山峦28000亩,占85.55％。流域内有一个自然村,449户,1719人, 该流域大部为花岗片麻岩,山高沟深地块支离破碎,有大小山头20个,主要山沟4条,干流总长度14公里,上游沟床多卵石,下游沟床多系冲积物。地下水资源贫乏,降雨大部以地表径流流走,汛后干旱缺水。 一、治理措施 (一)工程方面 对沟道的治理,主要是设置沟道防护工程。对支沟先从改造侵蚀沟头开始,布设沟头防护工程,然后在支沟的上、
Pingdu County, Shandong Province small watershed, with a total area of 21.82 square kilometers, of which 3434 acres of arable land, accounting for 10.49%; 28000 acres of mountains, accounting for 85.55%. There is a natural village in the basin with 449 households and 1719 persons. Most of the basin is granite gneiss, and the shanggaogou deep block is fragmented. There are 20 large and small hills, 4 main ravines, and the total length of the main stream is 14 kilometers. The upstream ditches Pebbles, the downstream ditch more alluvial lines. Groundwater resources are scarce, most of the rainfall flows by surface runoff, drought and water shortage after the flood season. First, the management measures (a) the project management of the channel, mainly to set the channel protection project. The first branch of the trench to start the transformation of erosion ditches, layout ditch head protection project, and then in the branch ditch,