Arsenic Sandstone Areas In The Middle Reaches Of The Yellow River Erosion Resistance To Promote Technology Integration And Demonstration Construction Of Demonstration Area Of Soil And Water Conservation In Small Watershed

The Yellow River is the mother river of the Chinese nation,Pisha rock area in middle reaches of the Yellow River is located in the jinshanmeng contiguous area of northern Ordos Plateau and the Loess Plateau is a region with the most serious water and soil erosion in the Yellow River Basin,sediment in middle reaches of the Yellow River Source Region.Pisha rock area is the ecological environment in the middle reaches of the Yellow River is extremely fragile and soil erosion is serious in the region;on the other hand,the region in the Yellow River long-term stability and security of core base of China’s energy sustainable development has a special and important position.In order to strengthen the security construction of the ecological civilization in the middle reaches of the Yellow River,reducing the environmental and social problems of soil and water loss in the Yellow River to china.The Yellow River Water Conservancy Science Research Institute led application "twelfth five-year" science and technology support project "in the middle reaches of the Yellow River sandstone areas resist promoting technology integration and demonstration",the project aims to the governance of Pisha Sandstone region of Loess Plateau is studied.The subject of this research is "one of the topics in soft sandstone area in the middle reaches of the Yellow River corrosion promoting technology integration and demonstration project".Firstly,through the basic situation of the project area on-site investigation and material collection,according to resist growth promoting properties of various materials on project area of soil and water retention effect research and testing,including corrosion promoting effect test of material of Pisha Sandstone erosion,corrosion promoting materials of Pisha Sandstone slope promoting students effect test and of Pisha sandstone protolith modified materials of check dam construction technology research,and the establishment of demonstration projects.In Pisha rock area test construction based on the proposed Pisha Sandstone resist promoting governance measures measures stereo configuration mode,soil of slope and gully,road keep construction pattern and plant configuration mode of system analysis and summary,forming a resist promoting system integration technology,and the establishment of demonstration area;establishment of Pisha Sandstone resist promoting technology demonstration area monitoring and evaluation method and resist to promote students comprehensive benefit prediction model,corrosion promoting stereo configuration optimization model is proposed,Pisha rock area of soil and water loss of governance,ecological restoration and the Yellow River Management and development to provide technical support.Through the test and the construction of demonstration zones that resist promoting materials in the demonstration zone of soil maintain governance has been successfully applied in,and use it as the basis of demonstration area of governance model previews effectiveness.Construction work on the project area starting from 2013,after a series of efforts to the end of 2015,the tiger II gully watershed water area of comprehensive management 284hm2.Among them: Afforestation 230.5hm2,artificial grass 3.5hm2,banned 50hm2.Basin in new warping dam a,control degree reached 87.93%.The project area has made substantial progress in the management of the slope and gully,and solved the key technical problems and the selection and development of construction machinery.The project area has established a set of monitoring system,which provides guarantee for the scientific research work and the project area management protection work.Project area test work includes most of the work has been completed and achieved some research results.