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Landscape structure, management and soil total nitrogen, total phosphorus in the densely populated rural landscapes of China’s Yangtze Plain PLANT COMMUNITY DIVERSITY IN DONGLINGSHAN MOUNTAIN,BEIJING,CHINA Litter Interception Simulation of Pinus tabulaeformis Plantation on Loess Plateau A Review of Adaptive Cluster Sampling in MultiResource Inventory Study on Canopy Interception Model and Its Parameter Characteristics of Pinus tabulaeformis Artificial Plantation in the Loess Plateau Forest Biomass Estimation Models of Remote Sensing in Changbai Mountain Forests Comparing Impact of Two Selecting Variables Methods on Canopy Closure Estimation. Study on manufacturing process performance index of Qingkailing injection