CAJ | 학술논문

对江苏省昆山市土地景观格局特征及其Ripley’s K函数的点格局特征进行了分析研究。结果表明：昆山市1995~2010年土地利用综合活跃度为2.52，是1985~1995综合活跃度的1.58倍，耕地向城乡建设用地和水域变化是最主要的景观变化特征；Ripley’s K函数研究表明，1985~2010年景观格局变化强烈，耕地和水域的观测曲线趋于平滑，在村级和镇级尺度，其分布集聚程度随尺度增大而增加，但在县级尺度表现为均匀分布；城乡建设用地观测曲线趋于陡峭，随着城乡建设用地扩张，城乡建设用地由随机及均匀分布向集聚分布变化明显。
대강소성곤산시토지경관격국특정급기Ripley’s K함수적점격국특정진행료분석연구。결과표명：곤산시1995~2010년토지이용종합활약도위2.52，시1985~1995종합활약도적1.58배，경지향성향건설용지화수역변화시최주요적경관변화특정；Ripley’s K함수연구표명，1985~2010년경관격국변화강렬，경지화수역적관측곡선추우평활，재촌급화진급척도，기분포집취정도수척도증대이증가，단재현급척도표현위균균분포；성향건설용지관측곡선추우두초，수착성향건설용지확장，성향건설용지유수궤급균균분포향집취분포변화명현。
Based on the land use raster data source in 1985, 1995 and 2010, the paper analyzed the point pattern spatial-temporal characteristics and its changes of Kunshan city. The objective of this paper is to find the land use change and its landscape spatial-temporal characteristics by using the Ripley’s K function, an important method of point pattern analysis. The findings showed that: the land use change of Kunshan was very active, and the land use change activity level (LUC)was very different in two studied time series. In 1995~2010, the LUC was 2.52, while it was 1.58 times of the LUC in 1985~1995, the land use change was more active of former one, and farmland and water body were the most active landscape patterns in Kunshan. The results of Ripley’s K function revealed that the change of landscape patterns was very intense, while the observed value curves of farmland and water body had been becoming flatter , in the village scale and town scale, they showed clumped spatially in fine scale, but became random and uniform in county scale, which was coarse scale in Kunshan City;the observed value curves of urban and rural built-up land were steeper more and more in studied time frame, which means that by the expansion of urban and rural built-up land, its distribution was changed from random to clumped obviously.