Demography and spectrum analysis of Juglans cathayensis populations at different altitudes in the west Tianshan valley in Xinjiang, China. Life Tables and Fluctuation Cycle of Juglans cathayensis Populations on Different Slope Aspects in Wild Walnut Natural Conservation Area of Xinjiang,China Analysis of the ecological structure of angiosperm composition in Juglans cathayensis in the Nature Conservation Area of Xinjiang, China Chemical constituents from leaves of Juglans cathayensis Chemical constituents from leaves of Juglans cathayensis