摘要
通过对雾灵山亚高山草甸植物区系的调查 ,应用 2× 2联列表和 χ2 检验的分析方法 ,对该植被类型 6 9种草本植物做了种间联结分析。结果表明 :在α =0 0 1的置信水平 ,极显著正联结种对有 31个 ,极显著负联结种对有 2 15个 ;在α =0 0 5的置信水平 ,显著正联结种对有 33个 ,显著负联结种对有 186个 ;零联结种对有 7个。
This paper makes association analysis of grass species in Wuling Mountain , using the contigency table of 2×2 and χ 2 test method The results show that at the confidence level of α=0 01 , there are 31 extremely notable species pairs with positive association and 215 with negative one , and that at the confidence level of α=0 05 , there are 33 notable species pairs with positive association and 186 with negative one There are 7 species pairs with zero association The other species pairs are all unnotable
出处
《河北林果研究》
2001年第4期311-317,共7页
Hebei Journal of Forestry and Orchard Research
基金
河北省林业局资助项目
课题编号 95 0 6 135
关键词
种间联结分析
植物区系
草本植物
亚高山草甸
雾灵山
herbaceous plant
association analysis of species
subalpine meadow
Wuling Mountain
