基于GIS/RS的滨海湿地景观空间格局多尺度分析

目的]为研究滨海湿地景观空间格局的多尺度变化。方法]运用GIS与遥感技术、Fragstats景观分析软件,以辽宁省盘锦市滨海湿地为研究对象,选取了具有代表性的景观格局指数,从不同行政区单元及空间粒度出发,定量分析了区县级与地级市的景观格局空间尺度特征。结果]空间粒度上,斑块密度、斑块数等景观指数具有明显的尺度效应,可预测性强。景观空间格局在地市级和区县级尺度都具有明显的尺度效应,表现出不同程度的规律变化,整体趋势一致。结论]区县级和地市级尺度的湿地类型均受人类影响很大,景观破碎度增加,总体湿地景观结构向简单化方向发展。

Multi-scale Analysis of Coastal Wetland Landscape Pattern Based on GIS/RS

Objective] The aim of the study was to research coastal wetland landscape spatial pattern of multi-scale of change.Method] Using GIS and remote sensing technology,landscape analysis software Fragstats,Panjin coastal wetlands as the research object,selecting the representative landscape pattern index from different administrative unit and space granularity,quantitative analysis of the characteristics of the landscape pattern of the district and city space scale.Result] Space granularity,patch density and the number of patches of landscape index has obvious scale effect,strong predictability.The landscape spatial pattern in the municipal and district scale has obvious scale effect,show different degrees of rule changes,the overall trend consistent.Conclusion] Both the district and city scale,the wetland types is highly affect ed by the human,the landscape fragmentation increased,the overall wetland landscape structure to develop in the direction of simplification.