长白山地区胡桃楸枝条生长规律的研究

Growth Law of Branches of Juglans mandshuricain Changbai Mountain Region

以吉林长白山地区景山林场生长的胡桃楸为研究对象,采用枝解析的方法,分别选定了不同林分下的8株胡桃楸,并对这些选定的树木进行精确的枝解析,最终得到其基径和枝长生长的数据,通过作图分析,可以看出胡桃楸的生长规律,结果表明:胡桃楸基径的总生长量随枝龄的增加而增加,连年生长量则与之相反。胡桃楸枝条长度的总生长曲线是随枝龄的增长而增长的,连年生长量均随枝龄的增长而减少。

J uglans mandshurica in Jingshan Forest Farm in Changbai Mountain Region of Jilin Province were taken as research object,eight trees of J .mandshurica were selected under different stands by using branch analysis. These selected branches of trees were conducted accurate analysis.The data of their base diameter and length growth of branch were finally got.Through mapping analysis,the growth law of J .mandshurica can be seen.Re-sult shows that the total growth of base diameter of J .mandshurica increased with the increase of branch age,and the annual growth increment is the opposite.The total growth curve of branch length of J .mandshurica increased with the increase of branch age.Annual growth increment decreased with the increase of branches.