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

作　　者：陈彬 CHEN Bin(Sanming Forestry Bureau of Fujian Province,Sanming,Fujian 365000)

机构地区：[1]福建省三明市林业局,福建三明365000

出　　处：《安徽农业科学》2024年第12期117-120,130,共5页Journal of Anhui Agricultural Sciences

基　　金：三明市林业科研项目“珍贵用材树种闽楠中龄林培育试验研究”(2019Ly-065)。

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。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 content 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 forests 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 

分 类 号：S714[农业科学—林学]