Characteristics of Plant Communities for Artificial Vegetation Restoration in Project-disturbed Areas of Alpine Areas
Taking the artificially restored vegetation in the project-disturbed area of the Tibetan Plateau as the research object,the plants were investigated using sample methods,and the species importance values and diversity indices were calculated to analyse the composition and species diversity of artificially restored plants with different ecological restoration techniques.The results showed that:(1)there were 45 species of herbaceous plants belonging to 36 genera and 16 families in quarry mine wasteland,among them,11 species belonging to 11 genera of Compositae,9 species belonging to 8 genera of Poaceae,5 species belonging to 4 genera of Leguminosae,and 2 species belonging to 2 genera of Polygonaceae.The adaptability of these 4 families was strong,and there were more single genus and single species.(2)The important values of Elymus nutans Griseb and Cynodon dactylon(L.)Persoon were the highest in the community.(3)The vegetation diversity index of the vegetation spraying technique was the highest among the three ecological restoration techniques,and the plant growth was the most luxuriant.
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