贵州西部地区光皮桦的生长规律  

The Growth Law of Betula luminifera in the Western Region of Guizhou Province

作　　者：周凤娇 丁访军 潘明亮[2] 朱军 吴鹏 

机构地区：[1]贵州省林业科学研究院,贵州贵阳550005 [2]贵州大学林学院,贵州贵阳550025

出　　处：《贵州农业科学》2011年第9期170-173,共4页Guizhou Agricultural Sciences

基　　金：公益性行业专项子项目"西南地区森林净生产力多尺度长期观测与评价研究"(200804006/rhh-04);"森林生态系统服务功能定位观测与评估技术研究"(200704005/WB03);贵州省林业厅重大项目"贵州森林生态效益监测与评价"[黔林科合(2010)]

摘　　要：为了合理有效地开发和经营光皮桦林,为生产单位合理、定向、分阶段地培育光皮桦林提供科学依据,通过对贵州西部地区光皮桦天然群落样地调查,选择平均木进行树干解析,研究其生长规律。结果表明:光皮桦胸径生长速生期在第6~18年,树高生长速生期在第3~15年,材积生长速生期在第15~18年;贵州六盘水地区光皮桦林各测树因子和林龄的拟合模型分别为:胸径D=-0.903-0.597t+0.048t2-0.002t3,树高H=1.744E-5t3.131,材积V=exp(2.797-6.642/t)。The natural communities in the western region of Guizhou province,the average tree is selected and the stem is analyzed to study the growth law of B.luminifera to develop and operate B.luminifera forest rationally and effectively and provide the scientific basis for B.luminifera breeding.The results show that the fast-growing periods of DBH,height and volumn are 6th^18th,3rd^15th and 15th^18th years respectively.The fitted models of DBH,height and volunm in Liupanshui region are D=-0.903-0.597t＋0.048t2-0.002t3,H=1.744E-5t3.131 and V=exp（2.797-6.642/t）,respectively.

关 键 词：光皮桦 胸径 树高 材积 生长规律 六盘水地区 贵州 

分 类 号：S792.15[农业科学—林木遗传育种]