Effect of artificial ecological restoration on the plant community biodiversity in Nanning Qingxiushan
In order to investigate the difference between artificial communities and natural community, 16 typical plant communities of Nanning Qingxiushan were investigated. The results show that the species and individual numbers of different artificial sample varied compared with the nature community. The maximal species of arbor layer, shrub and grass and ground layer were 12 kinds, 15kinds and 14kinds respectively. The minimal species of arbor layer, shrub and grass and ground layer were 2 kinds, 0 kinds and 0 kinds respectively. Changes in species number and individual number are mostly affected by plant species, growth status, ornamental and designer. Compared with the natural community, the Gleason indexes, the Weiner-Shannon indexes and the Pielou indexes of the artificial community changed greatly. The highest Gleason index of arbor layer was 2.091 8, the shrub layer was 3.257 2, and the herb layer was 0.849 3, and the lowest Gleason index of arbor layer was 0.321 8, the shrub layer and the herb layer were 0. The highest Shannon-Weiner index of arbor layer was Dalbergia obtusifolia-Lagerstroemia speciosa community 2.1193, shrub layer was Bambusa chungii community 2.105 9, the herb layer was Bambusa chungii 1.652 6. The lowest Shannon-Weiner index of arbor layer was Amygdalus persica community 0.182 2, shrub layer and herb layer were 0. Compared with natural communities, the ratio of arbor, shrub and grass layer changed largely, some over natural communities, some close to natural communities. The species of evergreen species in the community is more than that of the deciduous plants.
plant biodiversityNanning Qingxiushanplant communityspecies number
NETL
NSTL
万方数据
维普
