EFFECTS OF THE MOBILITY AND WATER INUNDATION ON DIVERSITY AND SPECIES COMPOSITION OF FLOWERING PLANTS IN SANDY REGION OF QUANG TRI PROVINCE
Main Article Content
Abstract
The study aimed to evaluate the effects of mobility and water inundation of sandy soil on species richness (S), Simpson diversity index (1-D), and species composition of flowering plants distributed in the sandy region of Quang Tri province. Species composition was surveyed by 455 quadrats of size 100m2 which were randomly laid in natural vegetation. The difference of species composition and diversity indices among habitats were evaluated by PERMANOVA, SIMPER, and ANOVA post-hoc test Tukey, respectively. The result revealed that diversity indices and species composition were significantly different between fixed sand soil, wetland, and mobile sand dune habitats. Overall species richness and Simpson index of natural vegetation were 311 species and 0.92, respectively. Mean of species richness and Simpson index differed remarkably and increased from mobile dunes (S = 3.74, 1-D = 0.31) to wetlands (S = 6.69, 1-D = 0.5) and fixed sandy soil (S = 15.11, 1-D = 0.7). The study provides a firm basis for the conservation and restoration of the sandy vegetation in Quang Tri province.
Keywords
diversity, flowering plants, Quang Tri, sandy soil, species composition
Article Details
References
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