Study on nitrogen and phosphorus content in the leaves of dominant plant species in sandy hills along Poyang Lake Photo-ecological characteristics of the dominant plant species in the secondary forest surrounding Qiandao Lake, Zhejiang, China Spatial Heterogeneity of Plant Community in Zigui and Wushan Typical Hydro-fluctuation Belt of Three Gorges Reservoir Areas Studies on the Characteristic of Element Contents in the Dominant Plant Species of the Threegorges Region in China Caloric Value and Nutrient Characteristics of Dominant Plant Species of Six Typical Vegetation Communities in Ziwuling Forest Area of the Loess Plateau