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修筑沟边埂是黄土高原根治原面陡坡水害,控制原面坡耕地水土流失的一项重要措施,是保原固沟的好方法,一般都在夏季和冬季结合平地修田一并进行。沟边埂可以拦蓄原面的坡面径流,控制原面水土流失和水力侵蚀,使耕地不受破坏,保障人畜安全,提高保持水土、拦泥效益。故应该重视沟边埂的修筑和维护。规划修筑沟边埂要和当地水土资源、地形、地力情况相适应,根据土壤结构、降雨侵蚀和水土流失程度,进行统一规划,集中修筑,力
The construction of ditch ridge ridge is an important measure to cure water and soil loss on the steep slopes in the Loess Plateau and control soil erosion on the sloping farmland. It is a good way to protect the valleys and furrows, and is usually carried out in summer and winter in combination with land preparation. Gully ridge can block the surface runoff of the original surface, control the water and soil loss and water erosion of the original surface, protect the cultivated land from damage, ensure the safety of human and livestock, and increase the benefit of soil and water conservation. Therefore, attention should be paid to the construction and maintenance of the ditch ridge. Planning and construction of ditch 埂 should and the local land and water resources, topography, land conditions to adapt to, according to the soil structure, rainfall erosion and soil erosion, unified planning, focus on building, strength