作　　者： ; ; ;

机构地区： 华南农业大学林学院

出　　处： 《福建农林大学学报（自然科学版）》 2013年第6期603-609,共7页

摘　　要： 应用典范对应分析(canonical correspondence analysis,CCA)方法和Kruskal-Wallis(非参数ANOVA)分析方法研究了南岭国家级自然保护区山地森林群落枯立木分布与地形因子的关系.结果表明:(1)调查枯立木77株,分属17科25属32种;(2)海拔、坡度、坡向、坡位和坡形等5个地形因子的综合作用对枯立木的分布格局具有显著影响(P<0.01),地形因子与3个排序轴均有较强的相关性,地形因子在第1排和第2排序轴的位置明显反映其生态特点;(3)海拔对枯立木多度的影响显著,海拔是影响枯立木分布的首要控制因子. By using canonical correspondence analysis （CCA） and Knmkal-Wallis （nonparametrlc ANOVA） analysis method, the relationship between distribution of snags and topographical factors in montane forests in Nanling National Nature Reserve was re- searched. The results were as follows. （ 1 ） 77 stems, 32 species in 25 genera and 17 families of snags were found in the plot. （2） Elevation, slope grade, slope aspect, slope position and slope shape had significantly integrative effects on distribution of snags （P 〈0.01）. Topographical factors had significant correlations with the three axes in CCA plot, and the environmental factors in the first and second axes reflected the ecological conditions of the community. （3） In the five topographic factors, elevation had signifi- cant effects on the distribution of snags which was the primary control factor affecting the distribution of snags.

关 键 词： 枯立木 地形因子 海拔 典范对应分析

领　　域： [生物学]