Abstract:In order to study the nutrient contents and their eco-stoichiometric characteristics of soil and leaves from different life forms plants in phosphorus mine area of Dianchi Lake Basin, four dominant plants (Coriaria nepalensis, Pinus yunnanensis, Erianthus fulvus and Eupatorium adenophorum) in degraded mountain area of phosphorus mine were selected to analyze the contents of carbon (C), nitrogen (N) and phosphorus (P) in plant leaves and soil. The results indicated that soil under Pinus yunnanensis was the highest in the contents of organic matter, total nitrogen, alkali-hydrolyzed nitrogen and available phosphorus, which were 22.42 g/kg, 1.85 g/kg, 140.78 mg/kg and 1 048.89 mg/kg, respectively, but the lowest in the content of total P, which was 2.51 g/kg. C content in leaves of Pinus yunnanensis was 492.86 g/kg, significantly higher than other plants, while N and P contents were 11.22 and 2.78 g/kg, significantly lower than other plants. Soil N content was positively correlated with leaf C content, but negatively correlated with leaf N:P ratio. The results showed that soil C and N were the main limiting factors for plant growth in phosphorus mine area. Under relatively deficient soil C and N, Pinus yunnanensis and Erianthus fulvus leaves could fix more C, while Coriaria nepalensis leaves fix more N. Therefore, it is suggested that the ecological restoration of abandoned land in phosphorus mine area can be achieved by constructing plant communities dominated by Coriaria nepalensis and Erianthus fulvus, and then planting Pinus yunnanensis to form coniferous forest in order to increase soil carbon, and planting nitrogen-fixing broadleaved tree species in the later stage of restoration to form coniferous broadleaved mixed forest in order to improve soil nutrients, conserve soil and water, and prevent soil phosphorus loss.