Study On The Layout Of Prevention And Control Measures For Soil And Water Loss In The Loess Area Of The Loess Plateau

The loess sorghum gully area is located in the hinterland of the Loess Plateau.It is the most typical area of the Loess Plateau in the world,with the largest area of the glutinous surface.The cultivated land in this area is concentrated and the villages are densely covered.It is an important place for the people in the middle reaches of the Yellow River to produce and live.It is also an important grain production base and a high-quality apple production area in China,and an important part of the revolutionary old area.In recent years,with the rise of new rural areas,urban development and construction,and the development of transportation,the hardened area of the kneading surface has gradually expanded,and the law of surface production and convergence has changed,which has led to the continuous erosion of the noodles,the serious erosion of the local channel,and the increasing soil erosion.It has become one of the main factors restricting the development of productivity in the region,the quality of life of the people,and the utilization of land resources.Therefore,the selection of reasonable measures for soil erosion prevention is of great significance to the “solid ditch protection”.Based on the theory of soil and water conservation and soil erosion,this paper selects Dongzhiyuan,Luochuanyuan and Taideyuan in the loess sorghum gully area as the research area,and takes the comprehensive management of soil erosion in this area as the main research content,and conducts in-depth investigation and comprehensive understanding.Based on the natural conditions of the study area,the causes and characteristics of soil erosion are analyzed.The prevention and control measures of soil erosion are determined and the results are shown.According to the different functions of soil and water conservation measures in the loess gully region,the measures for the study area will be laid.It is divided into seven types of measures: water storage measures,interception and drainage measures,side protection measures,trench protection measures,forest and grass measures,strip engineering measures and other supporting measures.According to the utilization value of different measures in the study area,the research proposes Adaptation measures and technicalindicators adapted to different topographic conditions,erosion conditions and actual needs of loess surface,forming various comprehensive measures for point,line and surface prevention,namely,trench head protection mode,slope slope recovery development mode,agriculture festival Water irrigation mode,economic fruit industry development model,urban landscape model,"yuan,slope,ditch".The comprehensive defense mode of the road defense line and the comprehensive development mode of the small watershed.Through this research,we will find a system for the prevention and control of water and soil loss in the loess sorghum gully area,to achieve the goal of “fixing the ditch and protecting the land”,improving the regional ecological environment,and maintaining the local sustainable development.The concept provides technical support for the comprehensive treatment standard for water and soil loss in the loess sorghum area in the loess.