An Evolution on Productiveness Factors of Phytlostachys pubescens Stand for Culms and Shoots by Quantitative Theory I

Based on the data collected from the fixed sample plots distributed regularly on 200 ha of Phyllostachys pubescens stand in Fenyi County, Jiangxi Province, an appraisal on the relationship between every two year yields of culms and shoots and the productiveness factors, such as stand structure,site and management level, were obtained by means of quantitative theory I. It showed that stand density, soil type, dome direction and management level were the leading factors which made remarkable impact on the stand for harvesting culms and shoots; the maximun yield of culms and shoots were produced by the stand composed of a high stand density, a wide mean eyebrow diameter and a young age average, situated in the southern or southeastern slope of 25~35 degrees where there was a soil depth of more than 80 cm and cultivated by intensive management method.