Reserve Cultivated Land Resources Investigation In Dean County Base On Fuzzy Comprehensive Assessment

In the context of Jiangxi Province,the urbanization of urbanization,the province’s economic development has improved,the city’s construction is also accelerating.However,the situation of cultivated land occupied by construction land has occurred frequently,which makes the area of cultivated land in our province decline year by year,which seriously affects the safety of food grain in our province.Cultivated land reserve resources is an important strategic resource for ensuring grain production,which is conducive to promoting the development of agricultural economy in our province and maintaining the safety of grain production.Therefore,the province as a large agricultural province,arable land reserve resources of the investigation and quality evaluation of the province’s economic construction is of great significance.Based on the related technology of GIS,this paper constructs the evaluation index system from the aspects of ecology,nature and economy by referring to the relevant research at home and abroad,combined with the field investigation,The fuzzy comprehensive evaluation method was used to evaluate the reserve resources of cultivated land in the area.This article takes full account of the ecological security,the natural environment,the economy and so on,to Dean County,Jiangxi Province as the object of investigation and evaluation of the study,the two counties of Dean County,the investigation and evaluation,namely: land can be reclaimed and reclaimed mining land,The development and utilization of cultivated land reserve resources in Dean County of Jiangxi Province has certain reference value.The main research results of this paper are as follows:(1)According to the principle of comprehensiveness,ecological security,convenience and suitability,we can select the evaluation factor of the suitability of cultivated land reserve resources in Dean County,and analyze each factor,establish the Dean County by analytic hierarchy process Evaluation System of Cultivated Land Reserve Resources.In this paper,the water distance,biodiversity,ecological land use,ecological effect,landscape effect,soil texture,topographic slope,soil thickness,elevation,altitude,and so on were selected from three aspects: ecological security,natural suitability and economic suitability.Location distribution,drainage conditions,irrigation conditions,farming convenience,concentrated degree of 14 evaluation factors as the evaluation of the indicators.Based on the relevant data collected,fuzzy comprehensive evaluation method was used to evaluate the reserve resources of cultivated land in Dean County.(2)The results of fuzzy comprehensive evaluation show that there are 5371 plots and 3514.70 hectares of the reserve resources in De’an County,and 3083.79 hectares of reserve resources are suitable for the reserve resources,accounting for 87.74% of the total reserve resources.The suitability is More suitable reserve resources are 231.21 hectares,accounting for 6.58% of the total reserve resources;the appropriateness level is 153.45 hectares of general reserve resources,accounting for 4.37% of the total reserve resources;46.25 hectares of unfavorable reserve resources,Resources of 1.32%.