The Theoretical Research on Calculation of Nail Holding Powerof Micron Wood Fiber Product by Mould Pressing Comparisons of three models for vegetation canopy bi-directional reflectance distribution function A Study on D iametra l Structure of Yunnan Pine Forestin the Pla teaus ofM id-Yunnan Province Application of Fuzzy Distribution Functions to Stand Diameter Distribution of Cunninghamia lanceolata Plantations Accurate Estimation for Moso Bamboo (Phyllostachys edulis) Biomass in Zhejiang Province Based on the Lowest Scale Technique The status of mineral nutrition concentration in middle leaves of flue-cured tobacco from China An Approach to Estimating Respiration of Forest Community and Its Application