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Study On Vegetation Restoration Of Jinyanghu Wetland In Taiyuan

Posted on:2011-02-21Degree:MasterType:Thesis
Country:ChinaCandidate:J X WangFull Text:PDF
GTID:2120360305995409Subject:Physical geography
Abstract/Summary:PDF Full Text Request
Plants community survey of Jinyanghu wetland in Taiyuan showed that, there were 66 species of plants were recorded, belonging to 24 families and 56 genera, of which 2 families,2 genera,2 species; angiosperms 22 families, 54 genera,64 species. In angiosperms dicotyledon 21 families,45 genera, 63 species of Compositae up to a total of 17 kinds of the total species of 25.76%; monocotyledons 1 family,1 genus,1 species. Components in all kinds of flora, the world is a widespread genus in the North temperate wetland plant in Taiyuan City Jinyang Lake occupies a significant advantage, accounting for 28.57%and 25%, not only shows the characteristics of the flora of temperate, also shows the frequent invasion of exotic plants in the area.In the survey plots based on the use of TWINSPAN classification and DCA sorting method are combined in Taiyuan Jinyanghu quantitative analysis of wetland plants. TWINSPAN classification of the 69 quadrat divided into 10 groups, representing 10 different plant associations, the results well reflect the dominant plant community types and species distribution and the relationship between environmental factors and Two-dimensional DCA ordination diagram get a better validation. Quadrats, DCA will be 69 plots divided into 10 areas, consistent with the TWINSPAN classification, DCA first axis reflects the communities with the soil moisture gradient; second axis reflects the change of plant communities with the aspect.With richness index, diversity index and evenness index Jinyang Lake vegetation diversity analysis. The results show that:R index and the H'index showed a trend similar. With H'index, X index and El index to describe the cluster nature of the group, you can get better consistency. A from the figure that the trend index and the R index,H'index, E1 index showed the opposite trend in the basic trend, which is mainly due to due to the different calculation methods,H'index andλindices can reflect the constructive species dominance in the thicket of high and low groups.Jinyanghu in the number of plants based on ecological analysis of Jinyanghu wetland restoration were studied and analyzed, the results showed that:Jinyanghu wetland ecological environment is fragile, water and tourists by the impact of production and living seriously deteriorated; the management of wetland vegetation is not in place and visitors have degraded interference. This suggested recovery mode-construction Wetland Park; In addition, respectively, from strengthening the awareness of corporate governance along the lake, reasonable exploitation of wetland resources, increase investment, strengthen scientific research discussed Jinyanghu wetland recovery strategy.
Keywords/Search Tags:Jinyanghu wetland, Plant community, Classification and ordination, Species diversity, Ecological restoration
PDF Full Text Request
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