Individual Growth Characteristics of Calocedrus macrolepis in Mojiang and Changning of Yunnan Province

Calocedrus macrolepis is a precious timber species in China.The method of stem analysis was used to compare the growth characteristics of C.macrolepis in Mojiang and Changning of Yunnan Province,which are the main distribution of C.macrolepis.The results indicated that:(1) The growth rate was slow in the initial 20 years,and the stand reached quantitative maturity at 70a when the volume increment began to decrease and tend to be stable.(2) C.macrolepis are shade tolerance and heliophilic.The growth vigor of C.macrolepis in Mojiang was better than that in Changning,which was consistent with environmental conditions.(3) According to its growth characteristics,some management measure were put forward including putting up shed in seedling stage,release cutting in sapling stage,thinning in mature age,etc.