Optimization on Ecological Green Land Network in Changhe Township Based on the Landscape Pattern Analysis
Based on aerial images of Changhe Township and relative software,this paper analyzed the landscape pattern of the township,and evaluated the composition and fragmentation of green land patch.Four ecological network scenarios were designed.By the analysis of some indices such as the corridor number,length,density,and α,β,y of network structure,the final optimal scenario of ecological green land network within the township was established.The results showed that the total number and area of ecological green land patch in Changhe township were 6 329,and 1 517.24 hm2,respectively.Differences in patch number and area among different types of green land patch were significant.High fragmentation degree of green landscape was observed.Comparative analysis demonstrated that the fourth scenario had the characteristics of higher corridors connection,network circuitry,network connectivity and lower network cost ratio.The optimization on ecological green land network would promote the connectivity and enhance the systematical service function of ecological green land in Changhe Township.
国家科技期刊平台
NSTL
万方数据
维普
