Measurement of ecotone width between agro-ecosystem and forest ecosystems after Grain for Green Program
To measure the eco-tone width is fundamental to the quantitative study on the ecological processes of eco-tone.In this study,Moving Split-Window Technique（MSWT） was used to measure the eco-tone width between mountain agro-ecosystem and forest ecosystem.Four indices（Species richness,Cody,Dissimilarity coefficient and Important value） had been selected,which could reflect the change of species biodiversity in eco-tone transect gradients.In addition,Squared Euclidean distance（SED） was better than Bray-Curtis percent dissimilarity（PD） for quantifying the change of species biodiversity in the eco-tone of agricultural-forest ecosystem.The results showed that the species richness was consistent with issimilarity coefficients in the eco-tone transect.It was also indicated that the width of eco-tone of agricultural-forest ecosystems was a sharp type which spanned about 9 m.
Grain for Green Programeco-tonebiodiversitymoving split-window technique.
NETL
NSTL
万方数据
维普
