Suitability Evaluation Of Constructive Land About Gentle Hills In Fenghua Region

At present,in order to solve the contradiction between land used and land supply,the country has carried out pilot work in low-slope hilly region in various provinces,so as to optimize the structure of land and space development and ensure the good and orderly development of social economy.In this paper,the Fenghua District of Ningbo City,Zhejiang Province,as a research object,the low-slope hilly region construction land suitability evaluation of the relevant concepts were analyzed.On the basis of this,the author investigates the situation of natural resources and socioeconomic situation in the study area,combines the regional economic characteristics and ecological protection,and analyzes and selects the evaluation factors with reference to the relevant literature,and establishes the low-slope hilly region resource database.The weight of evaluation index was determined by chromatographic analysis,and the suitability of low-slope hilly region construction was evaluated by multi-factor comprehensive evaluation model.Using the spatial analysis and operation function of ArcGIS software platform,the whole area evaluation result is obtained.At the same time,according to the urgent requirements of the central urban area for the ecological environment protection,this study is based on the relevant theoretical research results of the landscape security pattern,and uses the MCR model to construct the landscape ecological security pattern of the central urban area of Fenghua District for the purpose of ecological land protection.And the spatial compensation of the low-hill slope resources in the central urban area is carried out,and its resources are preferentially identified.This paper aims to provide a scientific reference for the ecological security strategy of the study area and the reasonable development and utilization of the land resources of the low-slope hilly region.The main results of this study are:(1)Investigation and analysis of low hill and gentle low-slope hilly region in Fenghua district.The area of low-slope hilly region is766.7 km2,accounting for 60.09%of the land area of the whole region.The low-lying and gentle slope resources in the Fenghua area have about 184.55km 2,and the slope is small,the altitude is low and the development and utilization level is low.,With good development potential.(2)Suitability evaluation of development and construction of low-slope hilly region The multi-factor comprehensive evaluation model was used to evaluate the low-slope hilly region in the study area.Fenghua Distric low-slope hilly resources development and utilization for the construction of land suitability comprehensive score between 17.649-83.719 points.(For development),three types of land(restricted development),four types of land(forbidden to develop).(3)Analysis on the Exploitation and Utilization of low-slope hilly region and Lighthouse Resources in Central City.In view of the realistic requirements of the ecological protection of the central urban area,the resources of the central urban area are divided into four categories:priority development type,moderate development type,limited development type and prohibition of development type.Fenghua District in the low-security level of low-level development of low-level slow slope resources accounted for the highest total resources,reaching 59.78%,in a safe level of moderate development and priority development of low-level slow slope resources accounted for 11.83%With 7.11%.