乡宁县东廒塬固沟保塬水土流失治理典型设计

Typical Design of Soil Erosion Control in Dongao Basin,Xiangning County

通过对乡宁县黄土残垣区塬面侵蚀情况进行调研,发现塬面部分沟道两侧沟头(岸)无任何防护措施,雨后汇流对沟头(岸)不断冲蚀,导致沟岸不断扩张,沟床继续下切,沟头向前推进,塬面面积持续下降,水土流失较为严重。为有效控制辖区内黄土残垣区塬面水土流失,保护塬面土地资源,提高农业生产能力,巩固脱贫攻坚成果,对乡宁县东廒塬进行固沟保塬水土流失治理典型设计,为全县乃至全省黄土残垣区塬面保护提供参考。

The erosion on the loess plateau in Xiangning County province was investigated,it is found that there are no protective measures on both sides of the gully head(bank)on the surface of the tableland,after rain,the confluence continuously erodes the gully head(bank),leading to the constant expansion of gullies and banks,the gully bed continued to cut down,the gully head pushed forward,the area of the plateau continued to decline,and soil and water loss was serious In order to control soil and water loss on the loess plateau in the area,protect the land resources on the tableland,improve agricultural production capacity and consolidate poverty alleviation achievements,a typical design of soil erosion control was carried out in Dongao of Xiangning County,in order to provide a reference for the protection of the surface of the tableland in loess remnant areas of the county and even the whole province.