Figure 7 Species accumulation curves of study site.

3.2.2 Diversity Distribution at Two Scales

Vegetation diversity is relatively low over the study area, with similar diversity at both scales. The 10m x 10m scale provides more detailed and accurate information on vegetation diversity compared to the 30m x 30m scale (Table 2 and Figure 8). At the 10m scale, the Margalef index indicates a moderate level of species richness, with a mean of 0.760; the Pielou index indicates uneven species distribution, with a mean of 0.295; the Simpson index is more sensitive to the enrichment of species, with a mean of 0.210, indicating a relatively low diversity; the Shannon-Wiener index is most closely related to species richness, with a mean of 0.395.