摘要
定量分析皆伐对短轮伐期尾叶桉人工林林地土壤理化性质的影响,结果表明:皆伐后土壤容重增大0 02g·cm-3,土壤结构体破坏率增大1 89%,最大持水量下降2 15%,总孔隙度减小2 25%;土壤养分含量普遍下降,其中土壤主要养分如有机质、全N、水解性N、全P、速效P、全K、速效K等含量分别下降13 19g·kg-1、0 26g·kg-1、1 60mg·kg-1、0 13g·kg-1、5 12mg·kg-1、0 49g·kg-1和3 11mg·kg-1;从森林生态采运角度出发。
The effect of clear cutting on the physical and chemical properties of soil in artificial Eucalyptus Forest of short period of cutting in rotation analyzed quantitatively.The results show the bulk density of soil and the damage rate of soil structure increased 0.02 g·cm^(-3) and 1.89% respectively,the saturated water retention of soil and the total porosity of soil decreased 2.15% and 2.25% respectively,the content of soil nutrient decreased generally after clear cutting. Of them main soil nutrient,such as organic matter,total N,hydrolytic N,total P,available P,total K and available K,reduced 13.19 g·kg^(-1),0.26 g·kg^(-1),1.60 mg·kg^(-1),(0.13 g·kg^(-1),)5.12 mg·kg^(-1),0.49 g·kg^(-1) and 3.11 mg·kg^(-1) respectively.Some technological measures of reducing the damage of ecological environment of forest caused by clear cutting are put forward for the ecological harvesting operation.
出处
《福建林学院学报》
CSCD
北大核心
2004年第2期111-113,共3页
Journal of Fujian College of Forestry
基金
福建省自然科学基金资助项目(E99001)
福建省林业厅科学基金资助项目(闽林科[2000]08号文第3(6)项).
关键词
皆伐
尾叶桉
林地
人工林
土壤
理化性质
clear cutting
Eucalyptus
artificial forest
physical and chemical properties of soil
