吉林省通榆县农村居民地空间演变特征及影响因素

发布时间：2018-05-04 20:26

本文选题：GIS + 农村居民地　；参考：《水土保持研究》2017年03期

【摘要】：农村居民地空间格局及其动态变化研究有利于因地制宜进行居民地的整理与优化,促进农村土地的集约利用。以吉林省西部通榆县为研究区,运用GIS技术和空间分析模型,定量分析了通榆县1955年、1990年、2013年农村居民地的时空变化及空间模式的演变,并选取景观格局指数对影响农村居民地布局特征的因素进行了深入分析。结果表明:居民地聚集度排序为:1955年1990年2013年。在空间尺度为45km处,3个时期的居民地聚集程度最大,表明居民地的聚集度随着空间尺度的增加呈先增加再下降的趋势。坡度、道路和水域等景观要素对通榆县农村居民地的布局有显著影响,随着坡度和距道路、水域距离的增加,农村居民地的斑块数都有不同程度的减少。1955—2013年人口的变化与居民地面积的变化具有一致性,人口膨胀是该县居民地向外扩张的重要原因。该研究可为农村居民地的空间布局提供决策依据,为新农村建设、增减挂钩规划、农村土地综合整治等提供应用参考。
[Abstract]:The study on the spatial pattern of rural residents and their dynamic changes is beneficial to the arrangement and optimization of residential land according to the local conditions and to promote the intensive utilization of rural land. Taking Tongyu County in the west of Jilin Province as the research area, using GIS technology and spatial analysis model, this paper quantitatively analyzed the spatial and temporal changes and the evolution of spatial patterns of rural residents in 1955, 1990 and 2013 in Tongyu County, Jilin Province. The landscape pattern index is selected to analyze the factors that affect the land layout of rural residents. The results show that the order of population aggregation is 1955, 1990, 2013. When the spatial scale is 45km, the aggregation degree of residents in three periods is the largest, which indicates that the aggregation degree of residents increases first and then decreases with the increase of spatial scale. The landscape factors such as slope, road and water area have a significant influence on the distribution of rural residents' land in Tongyu County. With the slope and the distance from the road, the water area distance increases, The number of patches in rural areas decreased in varying degrees. The change of population in 1955-2013 was consistent with the change of land area, and the population expansion was an important reason for the expansion of residents' land in this county. The research can provide the decision basis for the spatial distribution of rural residents' land, the application reference for the construction of new countryside, the planning of adding or decreasing the link, the comprehensive regulation of rural land, etc.
【作者单位】：吉林大学地球科学学院;
【基金】：国家自然科学基金“基于优化植被指数的草本湿地植被净初级生产力遥感估算”(41371403)
【分类号】：P208;F321.1

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