| Rural residential land is an important part of rural construction land.The change of spatial distribution is the result of the combination of natural conditions,social and economic conditions,national policy and other factors.It is the main research of rural rural geography and rural land One of the contents.Changsha County is a typical hilly area.The spatial distribution of rural residential areas is characterized by large quantity,small scale and decentralized layout.With the advancement of the construction of Chang-Zhu-Tan Demonstration Zone,how to improve the land resource intensive and Saving utilization,is to achieve the coordinated development of urban and rural socio-economic one of the important strategic issues.Therefore,it is very important to study the dynamic change and influencing factors of rural residential land in Changsha County,which is of great significance to promote the optimal disposition of land resources and optimize the spatial distribution of rural residential land.Based on GIS spatial analysis and landscape ecology,the spatial distribution pattern,pattern,characteristics,influencing factors,regulation and control paths of rural residential land use in Changsha County from 1989 to 2013 were studied.Measures and so on are systematically studied.The average plaque area decreased from 0.400 hm2 to 0.380 hm2,and the patch density increased from 2.525 / hm2 to 2.604 / hm2,which indicated that the rural area of Changsha County was more than 609.691 hm2 in rural residential area in 20 years.Residential land size,density showed an increasing trend,but the increase is not.The spatial distribution of rural residential land has a higher dependence on lowland,river and road,showing the distance from low elevation,river and road.The larger the scale and the number of rural residential land is,the less is the opposite.In terms of spatial distribution of rural residential areas,the regional scale of rural residential land area is more obvious,the spatial distribution density is smaller but the regional difference is larger,the shape is not regular but the regional difference is small.Based on the analysis of the factors influencing the spatial distribution of rural settlements,it can be found that the three major categories of agricultural science and technology level,regional economic development,policy system are the main factors,and on this basis,the spatial layout optimization of rural settlements in Changsha County Regulation and control measures,such as promoting the integration of urban and rural construction,vigorously developing the characteristics of agriculture,promoting the process of agricultural industrialization,the construction of small cities and towns as the carrier,and vigorously promoting urbanization in rural areas,continue to accelerate the advancement of rural residential areas,Rural social security welfare development,the implementation of scientific planning of rural settlements,strengthen the management of rural settlements,and so on,and provide reference for the rational distribution and orderly development of rural settlements. |
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