浙江省小叶青冈生长过程的研究  

Growth of Cyclobalanopsis myrsinaefolia in Zhejiang,China

作　　者：刘彬彬[1] 楼炉焕[2] 刘广宁[3] 张东北 叶青 

机构地区：[1]浙江农林大学风景园林与建筑学院,浙江临安311300 [2]浙江农林大学林业与生物技术学院,浙江临安311300 [3]南京林业大学风景园林学院,江苏南京210037 [4]浙江省庆元县实验林场,浙江庆元323800

出　　处：《浙江农林大学学报》2013年第4期517-522,共6页Journal of Zhejiang A&F University

摘　　要：应用浙江省庆元县实验林场交溪门林区64年生小叶青冈Cyclobalanopsis myrsinaefolia树干解析数据,研究其生长过程及其与气候因子的相关性。结果表明:①64年生小叶青冈的树高、胸径和材积总生长量均随年龄的增加而增大。②小叶青冈树高和胸径连年生长都呈多峰态曲线,而且均可分为3个阶段,树高和胸径的2个分界点分别为16 a和33 a,29 a和56 a,说明树高的生长对外界因素的反应更敏感。从平均生长曲线来看,树高年生长量32 a之前保持下降趋势,之后趋于平缓,胸径一直具有非常缓慢的上升趋势。③从材积生长过程来看,平均生长量曲线和连年生长量曲线一直未相交,说明64年生小叶青冈未达到其数量成熟龄,林木生长还有很大空间。④小叶青冈树高的生长与年降水量和年平均气温的曲线变化趋势比较一致,然而胸径和材积连年生长变化趋势与年降水量和年平均气温曲线差别较大,基本没有相关性,说明年降水量和年平均气温是影响树高生长的环境因子之一,对胸径和材积生长影响不大。The thesis aims at offering theoretical foundation for the reasonable development and efficient management of subtropical native tree species.Based on a stem analysis of 64-year-old Cyclobalanopsis myrsinaefolia in the Jiaoximen Forest Region of Qingyuan,Zhejiang Province,China,growth（tree height,DBH,and tree volume）and climatic factors（annual rainfall and average annual temperature） were studied with a correlation analysis.Results showed that：（1） The total increment for tree height,DBH,and volume increased with age.（2）Also,curves for current annual increment of tree height and DBH had many peaks and could be divided into three stages.Demarcation points for tree height and DBH were separately the 16th and 33rd year,the 29th and 56th year.For tree height,the mean annual increment declined during the first 32 years and then rose slightly.（3）With tree volume,the mean and annual increment curves did not cross indicating that stem volume had not reached maturity.（4）Tree height was consistent with changes in annual rainfall and average annual temperature;however,there was no correlation between DBH increase and tree volume.Thus,we could conclude that the growth of tree height was more sensitive to the effect of outside factor;annual rainfall and average annual temperature were important environmental factors influencing increases in tree height,but not DBH and tree volume.Although the most 2 important factors were studied,it could not cover all the external and internal carses.So the correlation between growth and climatic factors needed to be made further studies.

关 键 词：森林测计学 浙江省 小叶青冈 生长过程 气候因子 

分 类 号：S758.1[农业科学—森林经理学]