| The Loess Plateau of north Shaanxi Province is the region which has most serious soil erosion all over the province or even our country, also is the Prevention and Control Regionalization of Soil and Water Conservation in our country. Serious soil erosion deteriorates the regional ecological environment and production conditions, and causes some ecological problems such as dust storms and cutoff of the Yellow River. Theory research and practices of erosion control in many years indicated that, as an important engineering measures in preventing soil erosion of Loess Plateau, Warping Dam played an irreplaceable role in effectively reducing yellow sand and preventing floods of the Yellow River, improving region's ecological environment and production conditions, consolidating the achievements of returning farmland to forest and pasture, promoting construction of a new socialist countryside and sustainable development of economy and society. It is at an very important strategic position in ecological environment construction of the Loess Plateau.The author has had a collection and assortment of relevant materials on the nature geography state, the characteristic and harm of water loss and soil erosion, as well as emergence, evolution and the construction management of silt dam etc., and made a systematic learning and summarization of construction and management of silt dam in Northern Shannxi. Then on the concepts of comprehensive control of loess plateau area, and basing on objective analysis for natural conditions and social economic favorable conditions to develop silt dam in loess plateau area of Northern Shannxi, this dissertation has a initial study on the position, function and benefits of silt dam. Finally, suggestions and countermeasures on speeding up construction of silt dam has been put forward refers to the analysis of the main problems of construction and management of silt dam in loess plateau area of Northern Shannxi.
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