关键词: 毛竹林, 生长特征, 影响因子

Abstract: The function of forest stand is based on the structure of forest.To explore the bamboo structure at operating time can provide theoretical support for the reasonable structure-adjustment technology.The growth characteristics and influence factors were investigated in bamboo forest.The results showed that there was extremely significant correlation between the operation time and the DBH,height of bamboo as well as the number of new bamboo.The DBH and height of bamboo increased in the first ten years,and then decreased with the operation time.The number of new bamboo decreased with the operation time.The DBH reached the maximum 11.24 cm,and the height of bamboo reached the maximum 14.79 cm within ten years.Afterwards,both the DBH and the height of bamboo decreased gradually.30 years later,the DBH decreased by 13.61% and the height of bamboo decreased by 7.71%.The results can be evidence for the argument of productivity degradation of bamboo forest with operation time.The path analysis showed that both direct path coefficient and indirect path coefficient of operation time to DBH and height of bamboo were largest.Therefore,the index of DBH and height of bamboo can reflect the productivity degradation of bamboo with operation time.

Key words: bamboo forest, growth characteristics, influence factors