杉木及其混交树种的垂直分布与垂直热量关系  

The Correlation between Vertical Distribution and Vertical Thermal Indexes of Chinese fir and its Mixed Species in Fujian

作　　者：林思祖[1] 刘玉宝[1] 罗雪妹 黄世国[1] 

机构地区：[1]福建林学院,福建南平353001

出　　处：《福建林学院学报》2000年第3期211-214,共4页Journal of Fujian College of Forestry

基　　金：福建省科学技术委员会科学基金资助项目! ( 97-Z-2 19) ;福建省自然科学基金资助项目 !( C880 2 1) ;福建省"2 11"重点学科基金资

摘　　要：根据 2 4 1块样地 ,统计出杉木及其 8个混交树种的垂直温暖指标的频数分布 ,经 χ2检验表明绝大多数混交树种呈正态分布 ,个别近似正态分布 .半峰宽公式计算结果表明 ,杉木及其主要混交树种垂直温暖指标的全范围为 90 .5～ 1 73.3℃ · 月 ,最适范围为 1 0 5.5～ 1 62 .8℃ · 月 ,变动系数范围为 0 .0 89～ 0 .1This paper deals with Correlation between vertical distribution and vertical thermal index of Chinese fir and its mixed species by means of statistics of vertical frequency distribution of Kira's warmth index of the species from 241 samples in Fujian χ 2 test showed that six species obeyed normal distribution, And only two species nearly obeyed normal distribution Whole range of their vertical thermal distribution was 90 5～173 3℃·month And optimal range was 105 5～162 8℃·month by using the formula of peak width at half height

关 键 词：杉木 混交树种 温暖指标 垂直热量分布 

分 类 号：S718.45[农业科学—林学] S791.270.2