摘要
用逐步回归方法,分析了塞罕坝地区华北落叶松生长与气候因子的相关关系。结果表明:①影响华北落叶松胸径、树高连年生长的主导气候因子分别为≥10℃的有效积温和年平均气温、上年11月—当年1月的平均蒸发量;②气候因子间是相互影响、相互制约、共同作用的,并通过单优势性、协同作用、拮抗作用等形式对华北落叶松生长产生直接和间接影响。
The relations between the growth of Larix principis-rupprechtii and climatic factors were analyzed by stepwise regression method. The results showed that： 1 ）the dominant climatic factors influencing the successive annual growth of diameter and height of L. principis-rupprechtii were ≥10℃ effective accumulated temperature, annual mean temperature and the mean evaporation from November of previous year to January of present year;2）there were mutual influence, mutual restriction and interaction among climatic factors. Those factors affected L. principis-rupprechtii directly and indirectly by the forms of single advantage, synergistic effect and antagonism.
出处
《北京林业大学学报》
CAS
CSCD
北大核心
2009年第4期102-105,共4页
Journal of Beijing Forestry University
基金
国家林业局林业公益性行业科研专项项目(200804022F)
关键词
塞罕坝自然保护区
华北落叶松
气候因子
相关分析
Saihanba Nature Reserve
Larix principisrnpprechtii
climatic factors
correlated analysis
