首页 | 本学科首页   官方微博 | 高级检索  
   检索      

六盘山南坡华北落叶松(Larix principis-rupprechtii)树干直径生长及其对气象因子的响应
引用本文:熊伟,王彦辉,于澎涛,刘海龙,时忠杰,管伟.六盘山南坡华北落叶松(Larix principis-rupprechtii)树干直径生长及其对气象因子的响应[J].生态学报,2007,27(2):432-441.
作者姓名:熊伟  王彦辉  于澎涛  刘海龙  时忠杰  管伟
作者单位:1.中国林业科学研究院森林生态环境与保护研究所 国家林业局森林生态环境重点实验室, 北京100091;
2.内蒙古农业大学林学院, 呼和浩特010019
摘    要:2005年6~9月份在宁夏六盘山南侧的西峡林场,应用带状树木径向变化记录仪(Dendrometer)研究了5株华北落叶松树干的直径生长过程,结果表明,在无雨或小雨(日降雨量<10mm)天气下,树干直径变化呈现出明显的日周期性,可将其划分为3个阶段:收缩阶段、膨胀阶段和生长阶段;在连续降雨(日降雨量≥10mm)及随后的几个晴天中,树干直径变化并不表现出完整的日周期性。基于Deslauriers等人的方法,提出了树干直径日生长量估计的修正公式,并计算了华北落叶松树干直径日生长量和累积生长量,结果表明,各样木树干直径日生长量的季节变化趋势一致,即表现为前快后慢的季节变化格局,6~7月份为快速生长期,其日均生长量在27.0~44.2μm之间;8~9月份为缓慢生长期,其日均生长量在10μm以下;各测定样木的树干直径日生长量具有明显的个体差异,这主要与林木个体大小及其所处林分中的微环境条件差异有关;整个观测期内的树干直径累积生长过程可以较好地用幂函数描述。主分量分析和偏相关分析表明,影响树干径向生长的气象因子可划分为3类,其中日降雨量、日最低气温、日平均太阳辐射和日平均空气饱和差是影响树干径向生长的主要因子。

关 键 词:树木直径变化记录仪  华北落叶松  树干径向生长  气象因子
收稿时间:2006/1/10 0:00:00
修稿时间:2006/10/7 0:00:00

The growth in stem diameter of Larix principis-rupprechtii and its response to meteorogical factors in the south of Liupan Mountain

XIONG Wei,WANG Yanhui,YU Pengtao,LIU Hailong,SHI Zhongjie and GUAN Wei.

The growth in stem diameter of Larix principis-rupprechtii and its response to meteorogical factors in the south of Liupan Mountain

[J].Acta Ecologica Sinica,2007,27(2):432-441.
Authors:XIONG Wei  WANG Yanhui  YU Pengtao  LIU Hailong  SHI Zhongjie and GUAN Wei
Institution:The Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, The Forestry Ecological and Environmental Key Laboratory of National Forestry Ministry, Beijing 100091, China;The Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, The Forestry Ecological and Environmental Key Laboratory of National Forestry Ministry, Beijing 100091, China;The Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, The Forestry Ecological and Environmental Key Laboratory of National Forestry Ministry, Beijing 100091, China;The Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, The Forestry Ecological and Environmental Key Laboratory of National Forestry Ministry, Beijing 100091, China;The Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, The Forestry Ecological and Environmental Key Laboratory of National Forestry Ministry, Beijing 100091, China
Abstract:
Keywords:
点击此处可从《生态学报》浏览原始摘要信息
点击此处可从《生态学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号