异质环境条件下秃杉幼苗生物量研究

A Research on the Biomass of Taiwania flousiana Seedling under Different Environmental Conditions

采用空间序列代替时间系列的方法,对不同环境条件下雷公山格头秃杉幼苗生物量变化进行研究.结果表明:秃杉幼苗总的生物量为连续带>火烧地>林缘>林窗,其中火烧地和林缘内秃杉幼苗各器官的生物量是叶>茎>根>枝,连续带和林窗内秃杉幼苗各器官的生物量是茎>叶>根>枝.对不同环境条件下秃杉幼苗各器官的生物量与株高进行线性回归分析表明:在4种环境条件下除秃杉幼苗枝的生物量外,其它构件的生物量与株高具有显著相关性(P<0.05).在连续带内秃杉幼苗各器官生物量所积累较多,火烧地有利于秃杉的伸长生长.

In this research,the change of the biomass of Taiwania flousiana seedling was investigated in Lei Gong Mountain by the method of“space sequence”instead of the method of“time sequence”under different environmental conditions.The result showed that the continuous strip the,burning land,the edge of forest and theforest window.And the sequence of the biomass of each organ of Taiwania flousiana seedlings in burning land and edge of forest from high to low was leaf,steam,root and branch.In the continuous strip and the forest window,the sequence of the biomass of each organ of Taiwania flousiana seedlings from high to low was stem,leaf,root and branch.The linear regression analysis of the biomass of each organ of T.flousiana seedlings,except the branch,had significant difference(p<0.05)under 4 different environmental conditions.In the continuous strip,the biomass of each organ of Taiwania flousiana seedlings accumulated more than those in three other fields.Besides,burning land was beneficial to Taiwania flousiana seedling.