Ecological stoichiometry of surface soil nutrient and its influencing factors in the wild fruit forest in Yili region, Xinjiang, China. Assessment of ecosystem and its services conservation: Indicators and methods. Studies on the environment and biodiversity of the desert grassland area in Xiangshan Mountain,Ningxia The discussion about the designation and content of ecological conservation and construction Research on the Strategic Choice of Herdsmen’s Behavior in Grassland Resources Protection Effect study on a biological prevention method applying mix-culturing of saltmarsh and Avicennia marina mangrove trees to reduce marine fouling fauna damage