Biomass and Diversity of Different Grassland Types in Altay Forest Region
In this study,the vegetation characteristics of each grassland type were investigated,and the changes of aboveground biomass and species diversity of grassland under different grassland types were analyzed.The results showed that:① The characteristic values of plant density,community coverage and aboveground biomass were the largest in mountain meadow,while the average height of the community was the largest in mountain meadow steppe,compared with the vegetation growth in desert steppe and alpine meadow.② There was an obvious positive correlation between plant den-sity,and this relationship was statistically significant with P<0.05.③ The species diversity characteristics showed regular changes under different grassland types.The Simpson index,Alatalo index and Shannon-Wiener index performed better in mountain meadows.④ Aboveground biomass showed negative correlation with Simpson's index and Shannon-Wiener's in-dex only in desert grassland.Aboveground biomass showed positive correlation with Margarlef's index in mountain grass-land and alpine meadows,and aboveground biomass showed positive P<0.05 correlation with Alatalo's index in all except mountain meadows and alpine meadows.
万方数据
维普
