ZHU Jingjing,SHI Xueyi.Analysis of Spatial Autocorrelation Patterns of Land Use and Influence Factors in Loess Hilly Region——A Case Study of Changhe Basin of Jincheng City[J].Research of Soil and Water Conservation,2018,25(05):234-241.
黄土丘陵山区土地利用空间自相关格局及其影响因素分析——以晋城市长河流域为例
- Title:
- Analysis of Spatial Autocorrelation Patterns of Land Use and Influence Factors in Loess Hilly Region——A Case Study of Changhe Basin of Jincheng City
- 分类号:
- F301.2;P967
- 摘要:
- 为揭示黄土丘陵山区土地利用空间自相关格局与自然和人文因素的耦合关系，以晋城市长河流域为研究区，分析流域土地利用全局和局部空间自相关格局，利用GIS、灰色系统关联分析软件定量了各类用地与高程、坡度、坡向、有效土层厚度、与水域距离、人口密度、路网密度、距居民点距离的关联度及相关性。结果表明：距离权重为0.5 km时，流域内各土地利用类型整体呈现空间聚集性特征，表现出全局空间正自相关特性；空间正自相关性随着距离的增加而逐渐减弱。耕地、草地的用地分布呈明显的H-H，L-L聚集趋势，林地、水域和建设用地的空间分布呈明显的H-H聚集趋势。各格网耕地占比与有效土层厚度因子之间的关联排序最高；各格网林地占比与距居民点距离因子之间的关联排序最高；各格网草地占比与距水系距离因子之间的关联排序最高；各格网水域占比与距居民点的距离因子之间的关联排序最高；各格网建设用地占比与人口密度因子之间的关联排序最高。
- Abstract:
- In order to reveal the coupling relationship between the spatial autocorrelation of land use and the natural and human factors in loess hilly and mountainous regions, we carried out a case study on Changhe Basin of Jincheng City, and analyzed the land use of the basin and the local spatial autocorrelation pattern, and used GIS and gray system correlation analysis software to quantify the correlation and relation of various types of land and elevation, slope, aspect, effective soil thickness, distance to water area, population density, road network density, distance from residential areas. The results show that:when the weight is 0.5 km, the land use types in the basin show the characteristics of spatial aggregation as a whole spatial autocorrelation; the positive spatial autocorrelation decreases gradually with the increase of the distance; the distribution of cultivated land and grassland show the significant trend of H-H and L-L accumulation; the spatial distribution of forestland, water area and construction land show the significant trend of H-H accumulation. The relationship between the proportion of arable land in each grid and the thickness factor of effective soil layer is the highest. The relationship between the proportion of forestland and the residential area distance factor is the highest. The correlation between the proportion of grassland in each grid and the distance factor of water system is the highest. The highest correlation was found between the proportions of the grid waters and the distance factors from the settlements. The correlation between the proportion of the construction land for each grid and the population density factor is the highest.
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备注/Memo
收稿日期:2018-01-02;改回日期:2018-01-23。
基金项目:国土资源部公益性行业科研专项经费课题“北方村庄压煤山丘区土地综合整治技术研究”（201411007）
作者简介:朱静静(1994-),女,河南省新乡人,硕士研究生,研究方向为土地资源评价与土地利用规划。E-mail:joy_zhujing@163.com
通讯作者:师学义(1960-),男,山西省祁县人,博士,教授,研究方向为土地利用规划与土地利用工程。E-mail:shixueyi63@163.com