湖北林业科技

Abstract:The pure plantation in Chongyang County Guihua Forest Farm,and mixed forests in Dawu County Xianjuding Forest Farm in Hubei Province of C.acuminata were the research objects,then diameter at breast height,tree height,timber volume and growth rate were acquired by standardized setting and survey,on the basis of which,the growing process of diameter at breast height,tree height,growth value was studied and the growing variance between pure forests and mixed forests were analyzed.The results indicated that the fast growing period of diameter at breast height and tree height of C.acuminata appeared in early growing stage,so did the mixed forests and pure forests;diameter at breast height,tree height and timber volume and growth rate in mixed forest were superior to those of pure plantation;the analysis of growing process of C.acuminata revealed mature age of maximum volume was more than 30 years.