FTIR Analysis on Function Groups of David Poplar Wood and Lignin Degraded by 6 Species of Wood White-Rot Fungi The biomass of C3 and C4 plant function groups in Leymus chinensis communities and theirs response to environmental change along Northeast China transect Effect of Disturbance on the Community Species Diversity in Yunding Mount. Subalpine Meadow Effects of Sward Cleavage on Plant Diversity and Productivity in Alpine Meadows Shortterm response of functional plant groups abundance to simulated climate change in alpine meadow ecosystems