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Plant species composition and vegetation coverage are critical indicators in vegetation disturbance and restoration, but their correlations are dynamic and complex under human disturbance. Inadequate attention has been paid to the correlations between species composition and vegetation coverage associated with vegetation disturbance on plateaus. We analyze the origin of species, chorological spectra, life-forms and dominant species in the Napahai wetland of Yunnan Province, China. The correlations between species composition and vegetation coverage associated with human disturbance were then investigated by hierarchical partitioning and regression analysis. A total of 71 plant species belonging to 47 genera and 24 families were identified. Our results revealed that the plant composition of the Napahai Plateau vegetation was relatively monotonous, with the three dominant chorological types consisting of 68.4–100.0% of all genera. The wetlands studied have suffered from significant changes in species compos... more...