Study On Soil Wind Erosion In Huangfan District Of Northwestern Shandong

As an important grain production base in China,the role of the Huangfan Plain in the northwestern part of Shandong Province in the development of the national economy has become increasingly prominent.Over the years,the region has experienced frequent droughts and severe sandstorms,and severe soil erosion has limited local economic development.In order to find out the status of soil erosion in the semi-humid area,this paper takes the Dongchangfu area of Liaocheng as an example to study the soil erosion problem in the Huangfan area of northwestern Shandong.Because there are two types of water erosion in the Dongchangfu District of Liaocheng City,there are two types of wind erosion and hydraulic erosion.Therefore,in this study,remote sensing images,rainfall data,wind speed data,soil,land use types,topography and other data are used,based on soil loss in China.The equation CSLE and the wind erosion model use computer software such as GIS to calculate the hydraulic erosion and wind erosion in the Dongchangfu area of Liaocheng City in the semi-humid area,and to grasp the soil erosion characteristics of Dongchangfu District,and propose the factors according to the influence of wind and water erosion.Governance countermeasures.The main findings are as follows:the water erosion modulus of the study area is 0?1411.89t/km2.a.Micro-hydraulic erosion accounts for 99%of the entire region and the size is 1425.17km2.The mild hydraulic erosion accounts for 1%of the entire region and the size is 15.38km2.The mild water erosion in the whole area is concentrated in the northwest,and the erosion intensity in the rest of the area is mostly slight.The wind erosion modulus is 0?481.123t/km2·a.Mild wind erosion accounts for 86%of the total area and the size is 1238.95km2.Mild wind erosion accounts for 14%of the region and has a size of 201.60km2.The distribution of mild wind erosion is relatively scattered,and it appears in the southwest,inner and southeast sides of the whole area.The rest of the area is mostly slightly eroded.The average spatial difference between the water erosion and wind erosion modulus of different townships is significant.The township with large mean water erosion modulus is Liangshui Town,and the town with the smallest average water erosion modulus is Liuyuan Street;the town with large wind erosion modulus is Zhangluji Town,and the town with small wind erosion modulus is Gulou Street.From the perspective of the factors affecting water erosion and wind erosion,there are generally two aspects:natural factors and human factors.Natural factors are climatic factors and soil factors.There are many manifestations of human factors,mainly based on the Yellow River,development and construction projects.The countermeasures for soil erosion control in Dongchangfu District are mainly based on human factors,and the sand is improved through the rational use of sand in the Huangfan District.In order to protect farmland from wind and sand disasters,a protective forest network can be established to reduce wind speed.Implement conservation tillage to increase surface coverage and reduce wind erosion.