ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

The scientific division of detailed types of rural residential areas and the systematic analysis of their internal structures are the important basis for the compilation of village development plans and the implementation of different renovation measures. Taking the existing residential areas as the same object, the internal structures and regional differences in Miyun Distirct were studied deeply based on the detailed classification data of rural residential areas and the conservation scope of the Miyun District. Comprehensive methods such as Weaver-Thomas combination coefficient, Lorenz-curve, Gini-coefficient and landscape pattern analysis were applied to analyze the internal structure characteristics of rural residential areas. Three main results were found as follows: the rural residential areas in Miyun District were dominated by living space, supplemented by production and ecological space. The main types of uses included residence, agricultural production, industrial production and business travel service. As for spatial characteristics, the distribution of living space in rural residential areas was the most balanced, followed by the production space and ecological space. In addition, the proportion of ecological space in rural residential areas was higher inside water conservation zone than that outside this area. The types of uses of rural residential areas were various and the landscape showed the characteristic of fragmentation. Compared with the landscape outside the water conservation zone, the landscape inside this area was more aggregated and regular, indicating that the internal structures of rural residential areas were affected by the demarcation and management of water conservation zone to a certain extent. The research result can provide a reference for the efficient utilization and orderly renovation of land in rural areas.