Spatial allocation model of ecological land in the urban fringe of Xi'an City based on geosynclinal fold belt structure

摘要

Urban ecological land planning is an important foundation and premise of urban ecosystem protection. Based on the structure of geosynclinal fold belt, the spatial allocation model of ecological land in the urban fringe of Xi'an city is designed. Taking the ecological land in the urban fringe of Xi'an city as an example, after analyzing the structure of geosynclinal fold belt in this area, the comprehensive index model of regional ecological effect based on the structure of geosynclinal fold belt is adopted to calculate the comprehensive index of ecological effect in the urban fringe of Xi'an city and obtain the ecological number in the urban fringe of Xi'an city. According to the ecological data, the paper constructs the spatial planning model of urban ecological land based on ant colony optimization algorithm and realizes the spatial allocation model design of ecological land in the urban fringe of Xi'an city based on geosynclinal fold belt structure. The results show that the edge space of Xi'an city based on geosynclinal fold belt structure is in good agreement with each other after the spatial allocation of ecological land in urban fringe area of Xi'an city by using the designed model, and the ecosystem service value is high, which provides some help for improving the urban ecosystem protection.