Research On Agricultural Land Use Model In Changhe Watershed Of Jincheng

In China,the problem of land use has been a vital link in the modernization process.At present,the extensive land use mode is adopted in most areas,the consumption of land resources is accelerating,and the unreasonable exploitation and utilization make the ecological environment face great pressure,which is not conducive to the sustainable development of agriculture.Therefore,it is urgent to find a more suitable mode of land use,so as to protect and improve the ecological environment,promote the conservation and intensive use of land resources,and then realize the sustainable development of society,economy and ecology.Based on the reality of Changhe Watershed,the present situation of agricultural land utilization in the study area is considered,and the development direction of agricultural industry in Changhe Watershed is analyzed based on the situation analysis method.The suitability evaluation of agricultural land in Changhe Watershed is carried out with the support of analytic hierarchy process,fuzzy comprehensive evaluation and ArcGIS10.1 platform.Based on the optimization of the spatial layout of agricultural land use patterns,a new mode of agricultural land utilization is put forward according to the requirements for the development of agricultural industry in the Changhe Watershed.The main results are as follows:(1)the analysis of the conditions of agricultural development in the Changhe Watershed shows that the agriculture in the Changhe Watershed has good potential for development.In the process of development,we should focus on two aspects: on the one hand,we should pay more attention to optimizing the spatial distribution of agricultural land use mode;on the other hand,based on the principle of local conditions,the agricultural land use mode is innovating.(2)according to the suitability evaluation of agricultural land in Changhe Watershed,the area of high suitable,sub suitable,critical and unsuitable areas of Changhe Watershed are 2806 hectares,2283 hectares,2983 hectares and 1324 hectares,and the proportion of agricultural land area is 29.86%,24.29%,31.75% and 14.09%,respectively.The land suitability grade decreases along the banks of the Changhe Watershed and its branches,and has a good potential for agricultural development.(3)according to the results of suitability evaluation,the spatial optimization of agricultural land utilization in Changhe Watershed was carried out.The cultivated land and garden were mainly distributed in the suitable and sub suitable areas.The grassland was mainly distributed in the critical suitable area,and the forest land was mainly distributed in the unsuitable area.(4)comprehensive analysis of the conditions of agricultural development in Changhe Watershed,and the result of suitability evaluation of agricultural land,a new mode of agricultural land utilization is put forward.It is divided into six types: the grain planting cooperative model,the circular ecological agriculture model,the orchard stereoscopic planting pattern,the economic model under forest,the pattern of tourism utilization in the forest and the combined utilization mode of grassland breeding and breeding.According to the characteristics and limiting factors of each utilization mode,relevant configuration measures are put forward.