页岩山地川黄柏人工中林生长规律研究

Study on Growth Law of Phellodendron chinense Plantation in Shale Mountain

[目的]调查页岩山地川黄柏13年生人工中林的生长规律。[方法]用样地调查法获取林分胸径平均值,按胸径等于(或接近)样地平均值及平均值±2 cm的方法选择3株生长正常的样木,按1 m区分段法进行树干解析。[结果]页岩山地川黄柏人工中林,胸径平均生长量13年达到0.42 cm/年;胸径连年生长量在0.20~0.90 cm间波动。树高平均生长量及连年生长量分别在0.50~0.64 m/年及0.33~1.00 m间波动。材积平均生长量13年达到0.000763 m^(3)/年,材积连年生长量13年达到0.002127 m^(3)。[结论]结果为川黄柏木材及干皮的科学培育提供了依据。

[Objective]To investigate the growth law of 13 years old Phellodendron chinense plantation in shale mountain.[Method]The average DBH of the stand was obtained by the sample plot investigation method.Three normal growing sample trees were selected according to the method that the DBH was equal to(or close to)the average value of the sample plot and the average value±2 cm,and the trunk was analyzed according to the 1m zone segmentation method.[Results]The average DBH growth of Phellodendron chinense plantation in shale mountain reached 0.42 cm/year in 13 years.The annual growth of DBH fluctuated between 0.20-0.90 cm.The average growth and annual growth of tree height fluctuate between 0.50-0.64 m/year and 0.33-1.00 m respectively.The average volume growth reached 0.000763 m^(3)/year in 13 years,and the annual volume growth reached 0.002127 m^(3) in 13 years.[Conclusion]The results provide a basis for the scientific cultivation of wood and dry bark of Phellodendron chinense.