Research On The Delineation Of Basic Farmland In Qiaozhuang Town Of Qingchuan County

At present,under the background of building a well-off society in an all-round way,the income of rural families has improved a lot,and a large number of rural population flows to the city.The growth of urban population has caused the increase of construction land around the town,and the expansion of construction land will inevitably lead to the reduction of arable land around the city,and a large number of cultivated land will be occupied by urban construction.In order to ensure food security in our country,the delineation of permanent basic farmland around the city is particularly important.But the growing ecological concepts and environmental point of view,to realize the optimization of city land use is not only to be able to meet the population in a certain area of food security,but also in the ecological landscape level reflects on the development of sustainable city.So the delineation of the city surrounding permanent basic farmland is not to restrict the development of the city,but the ecological value for the development of the city based on the protection of arable land,reflected in the city land use in a mutual restriction of "balance" relationship.This paper takes Qiaozhuang town of cultivated land as the research object,to delineate the domestic basic farmland method and farmland protection countermeasures based on theoretical research,based on the present status of Qiaozhuang town of basic farmland as the basis,analysis of the use of modern geographic information technology and hierarchy technology,combined with the benefits of ecological planning and city development of the city of Qiaozhuang town 838 a map of farming spot.The paper expounds the scientific theories related to the delineation of permanent basic farmland,and combs the research status of the basic farmland delimitation and protection at home and abroad.After the analysis of the present situation of farmland and soil quality status,from four aspects of natural conditions,geographical conditions,ecological conditions and policy conditions and analyzes the influence factors of public participation in the designated Qiaozhuang town permanent basic farmland.To choose the effective cultivated land soil thickness and soil texture and other 14 factors as the evaluation indicators delineated the Qiaozhuang town permanent basic farmland,and the establishment of mathematical model.Using AHP to determine weights and tillage Qiaozhuang town comprehensive evaluation map spot.The control area surrounding counties and 91 cultivated land is delineated by method of verification of evidence,and ultimately determine the surrounding county into 4.68 hectares of basic farmland,plus the county surrounding the original 1.63 hectares of basic farmland,the Qingchuan County surrounding a total of 6.31 hectares of basic farmland.144 plots of basic farmland were allocated outside the control area,totaling 169.77 hectares.So the Qiaozhuang Town designated permanent basic farmland 147 blocks,a total of 176.08 hectares.Finally,the Qiao Town permanent basic farmland delimitation meaning are summarized: to ensure and maintain Qingchuan County Ecological City in the rapid development of Qiaozhuang town economy,improve the comprehensive grain production capacity of cultivated land,the ecological environment to ensure the stability of the agricultural population Qiaozhuang town Qingchuan county and food security.