Dynamics of Structure and Variation of Biomass of Vegetation in the Processes of Ecological Restoration in the Red Soil Region of Lijiang Valley

Five vegetation communities:herbosa,shrubs,coniferous forest,theropencedrymion,and evergreen broad-leaved forest in the red soil region of the Lijiang Valley are selected as the five successive stages of the typical restoration process of degraded ecosystems to study variation of structure and biomass of the vegetation of the five different stages.Results demonstrate that with the succession going on from herbosa →shrubs→coniferous forest→theropencedrymion→evergreen broad-leaved forest,abundance and diversity index of species,biomass and productivity of vegetation all show a rising trend prior to the formation of a mature and stable biotic climax.A degraded community tends to develop to be more complex and sounder in structure.Based on the findings of the research,some advice is put forward about how to artificially accelerate ecological restoration in the red soil region of the Lijiang Valley.