基于ArcGIS和FRAGSTATS的重庆市长寿区景观格局分析

以重庆市长寿区2009年土地变更调查数据为基础,利用ArcGIS和FRAGSTATS软件,对长寿区斑块类型水平和景观类型水平下的景观格局特征进行了定量分析。结果表明:长寿区耕地景观占全区总斑块的48.35%,占农业用地景观的59.55%,耕地资源比较充足;建设用地景观平均斑块密度为14.855 7个/hm2,平均斑块面积为0.698 hm2,分布零散;长寿区景观格局整体较为合理,多样性较高,各景观类型分布较均匀,无一种景观类型占据绝对优势情况;景观格局整体属散布分布,但分散度不大。

Analysis of Landscape Pattern of Changshou District of Chongqing Based on ArcGIS and FRAGSTATS

Based on the survey on land change data in 2009 in Changshou District of Chongqing,by the means of ArcGIS and FRAGSTATS software,this paper makes quantitative analysis of landscape pattern characteristics of patch class level and landscape pattern level,and the results show that the planting landscape of Changshou District accounts for 48.35 percent of total patch area and reaches 59.55 percent of agricultural land landscape,that arable resources of Changshou District are relatively sufficient,that the average patch density and average patch area of its construction land is 14.8557 per hm2 and 0.698 hm2 respectively and their distribution is scattered and that the integrity of its landscape pattern demonstrates relative rationality with high diversity,relatively even distribution of each landscape pattern,no one landscape takesing absolute advantage,the landscape pattern integrity demonstrates scattered distribution but small scatter degree.