松土抚育对闽楠林地土壤物理性质及林木生长的影响
Effects of Soil Loosening Operation on the Soil Physical Properties and Tree Growth in Phoebe bournei Plantation
陈彬1
作者信息
- 1. 福建省三明市林业局,福建三明 365000
- 折叠
摘要
为培育闽楠大径材,对闽楠中龄林分进行了3年的松土抚育试验,结果表明:疏松林地表层土壤容重下降,但随时间推移逐年增加;土壤毛管孔隙和非毛管孔隙增加,但随时间推移逐年减少;土壤自然含水量和最大持水量增加,但随时间推移逐年减少;林木生长加快,胸径、树高、蓄积生长量均明显高于未松土的林分,且松土面积越大,生长越好.对于以培育大径材为目标的闽楠人工林,需要每3～5年进行一次松土抚育.
Abstract
In order to cultivate large diameter timber of Phoebe bournei,we conducted a 3-year soil loosening experiment on Phoebe bournei middle-aged stands.The main findings are as follows:loosening the surface soil,causing a decrease in soil bulk density,which increases year by year over time;an increase in soil capillary and non capillary pores,which decrease year by year;an increase in the natural moisture con-tent and maximum water capacity of the soil,and over time,the natural moisture content and maximum water capacity decrease year by year;the growth of stands is accelerated,and the diameter at breast height,tree height,and volume growth are significantly higher than those of for-ests without loose soil,and the larger the soil loosening area,the better the growth.For cultivating large diameter timber of Phoebe bournei,it is recommended to do soil loosening operation every 3-5 years.
关键词
闽楠/中龄林分/松土抚育/土壤孔隙/土壤水分Key words
Phoebe bournei/Middle-aged stand/Soil loosening operation/Soil porosity/Soil moisture引用本文复制引用
基金项目
三明市林业科研项目(2019Ly-065)
出版年
2024
国家科技期刊平台
NSTL
万方数据