Research For The Suitability Evaluation Of Ecological Immigration Activity Space In Ningxia Based On GIS

The ecological immigration project is one of the important strategic in China,in order to realize the harmonious development between human and nature,construct ecological civilization and achieve"targeted poverty alleviation".At present,there are few studies on the activity space of this kind of rural settlements which are not spontaneous and have few historical and cultural deposits.The study selected the Ningxia Hui Autonomous Region as the research area,14 typical new villages of ecological immigration were selected as the research objects.For the necessity of evaluating activity space suitability,based on 3S technology,an assessment method for the comprehensive accessibility of villages' infrastructure and geographic detector method.to explore the activity space suitability evaluation of ecological immigration in Ningxia.The activities of evaluating satisfaction of ecological immigration,researching the influencing factors and reasons for the new activity space that are meaningful for the follow-up work of the ecological immigration project.The results show that:(1)The natural suitability of ecological immigration activity space in Ningxia was holistically high.The immigration sites carry out the principle of maximum profit.These location changed natural suitability of human settlement,and promoted the sustainable development potential of ecological immigration.(2)From the micro perspective of the suitability of ecological immigration activity space in Ningxia,the accessibility of infrastructure in these 12 cases is good.This is significant different accessibility in different villages.The spatial shape of infrastructure has a direct impact on walking accessibility evaluation.(3)The ecological immigrants in the case villages are basically satisfied with the new activity space.Activity space satisfaction is associated with number of years of ecological immigration with increase of number of years,the overall trend of activity space satisfaction on the rising situation,but the trend shows "high-low-high" inverted parabolic characteristics clearly,the process of adapting new activity space can divide into "nursing","infant","self-reliance" period.The people with different satisfaction degree have different activity space.People with high satisfaction degree have a wide range of activities.People with low satisfaction degree have a narrow range of activities.