基于矢量和栅格数据的土地利用稳定性研究——以山东省临沂市为例  

Stability Study of Land Use Based on Vector and Raster Data:A Case Study of Linyi City in Shandong Province

作　　者：吴晨[1] 张建新[1] 吴国平[1] 刘培学[1] 汪佳莉[1] 范庆亚[1] 

机构地区：[1]南京大学地理与海洋科学学院,江苏南京210093

出　　处：《地理与地理信息科学》2016年第1期117-121,共5页Geography and Geo-Information Science

摘　　要：数据格式(矢量和栅格)和栅格粒度的选择对准确分析土地利用稳定性、正确指导土地利用规划至关重要。该文以临沂市2010年1∶5 000比例尺土地利用现状图为基础数据源,运用分形理论和GIS技术研究不同数据源下临沂市区土地利用类型的分维值和稳定度。结果表明:临沂市土地利用总体稳定性弱,建设用地、园地稳定性较强,水体、未利用地、林地稳定性较弱,耕地、交通用地、草地属于受数据格式影响大的敏感地类;敏感地类突出反映了矢量和栅格研究结果的偏差,最佳适宜粒度下的栅格数据产生的是平稳偏差,通过采用第一尺度域内的粒度作为最佳适宜粒度降低了与矢量结果的偏差。该研究对土地利用景观格局分析中数据源的选择具有参考意义。It is very important that an appropriate data format or an appropriate grain size is selected to accurately analyze landuse landscape patterns and rationally guide land use planning.Based on urban land and use map of Linyi in 2010,this paper used fractal theory and GIS as guide for the study of the fractal dimension and stability of land-use types based on different data format.There were some results as followings：1）the overall stability of land use in Linyi City was low.The stability of construction land and garden land was high relatively and that the water land,unused land and forestland was lower,and cultivated land,traffic land and grassland were more sensitive to the influence of data format.2）The sensitive land-use types highlighted the deviation between raster results and vector results.The results deviation generated by the raster data under the most appropriate grain size was smooth and steady.By using the size in the first scale domain as the most appropriate grain size,the deviation between raster results and vector results was reduced.All in all,the research has important reference value for the format selection of data sources in the analysis of land use landscape pattern.

关 键 词：矢量 栅格粒度 土地利用 分维值 稳定度:临沂市 

分 类 号：F301[经济管理—产业经济] P208[天文地球—地图制图学与地理信息工程]