长苞铁杉天然林水源涵养功能研究  

A Study on the Water Conservation Function of Tsuga longibracteata Nature Forest

作　　者：钟祥顺 黄海[2] 

机构地区：[1]福建省长汀楼子坝国有林场,福建龙岩366300 [2]福建省林业厅,福建福州350003

出　　处：《福建林业科技》2004年第4期54-57,共4页Journal of Fujian Forestry Science and Technology

摘　　要：对闽西邱家山长苞铁杉天然林、常绿阔叶林和杉木人工林的林冠层、林下植被层和凋落物层的持水量、土壤的蓄水能力和渗透性能进行研究 ,结果表明 :长苞铁杉天然林地上部分持水量与常绿阔叶林接近 ,分别为 2 5 8 4 2 6t·hm-2 和 2 77 2 4 2t·hm-2 ;林地土壤的稳渗值亦相近 ,分别为 6 6 8mm·min-1和 6 91mm·min-1,分别是杉木人工林土壤的 1 8倍和 1 9倍。The results showed that the water-holding content of above-ground protion of Tsuga longibracteata nature forest was close with that of T.longibracteata evergreen broad-leaved forest,they were 258.426 T/ha and 277.242 T/hm^2,the steady permeation values of forest-land soil were also close,6.68 mm/min and 6.91 mm/min,respectively,which were 1.8 times and 1.9 times as large as that of Cunninghamia lanceolata plantation soil,respectively.It showed that T.longibracteata nature forest owned fine water conservation function.

关 键 词：长苞铁杉 水源涵养功能 天然林 杉木人工林 持水量 土壤 常绿阔叶林 闽西 林地 蓄水能力 

分 类 号：S791.17[农业科学—林木遗传育种] S718[农业科学—林学]