集约经营对绿竹林土壤主要物理性状的影响  

Effects of Intensive Management on Main Soil Physical Properties of Dendrocalamopsis oldhami Forest

作　　者：姜克森 JIANG Ke-sen(Shuangxi Forestry Station of Shunchang County in Fujian Province,Shunchang 353200,Fujian,China)

机构地区：[1]福建省顺昌县双溪林业工作站,福建顺昌353200

出　　处：《竹子学报》2021年第3期13-21,共9页Journal of Bamboo Research

基　　金：福建省2019省属公益类科研院所基本专项“绿竹笋用林精准施肥技术的研究”(2019R1009-1)。

摘　　要：为研究集约经营对绿竹林土壤物理性状的影响,研究选取沙性红壤、黄红泥土和红泥土生长的绿竹林,采集耕作层(0-20 cm)土壤样品,测定土壤容重、总孔隙度、毛管孔隙度、非毛管孔隙度、自然含水量、田间持水量、毛管含水量、饱和含水量、渗滤率等指标。结果表明,集约经营促使沙性红壤绿竹林土壤容重和田间持水量分别增加1.22%和1.80%,总孔隙度、非毛管孔隙度、自然含水量、毛管含水量和饱和含水量分别降低8.16%、39.23%、14.61%、2.94%和7.94%。集约经营促使黄红泥土绿竹林土壤自然含水量增加7.38%,促使土壤容重、总孔隙度、毛管孔隙度、非毛管孔隙度、田间持水量、毛管含水量和饱和含水量分别降低1.44%、6.86%、6.04%、13.26%、5.66%、1.99%和3.01%。集约经营促使红泥土绿竹林土壤总孔隙度和非毛管孔隙度分别增加1.08%和104.54%,促使毛管孔隙度、自然含水量、田间持水量和毛管含水量分别降低4.52%、11.41%、6.12%和2.28%。此外,集约经营促使沙性红壤、黄红泥土和红泥土绿竹林土壤K_(10)分别上升了47.37%、54.29%和22.73%,表明集约经营促使土壤渗滤率增加。In order to study the impacts of intensive management on soil physical properties of Dendrocalamopsis oldhami forest,samples of tillage layers(0-20 cm)of three soil types,i.e.,sandy red,yellowish red and red,for bamboo planting were collected.A series of soil parameters were measured,including bulk density,total porosity,capillary porosity,non-capillary porosity,natural water content,field water capacity,capillary water content,saturated water content and percolation rate.Results showed that because of intensive management,the bulk density and field water capacity of sandy red soil in bamboo forest increased by 1.22%and 1.80%,respectively,while the total porosity,non-capillary porosity,natural water content,capillary water content and saturated water content decreased by 8.16%,39.23%,14.61%,2.94%and 7.94%,respectively.For yellowish red soil,the intensive management caused the natural water content to increase by 7.38%,and the bulk density,total porosity,capillary porosity,non-capillary porosity,field water capacity,capillary water content and saturated water content decreased by 1.44%,6.86%,6.04%,13.26%,5.66%,1.99%and 3.01%,respectively.And for red soil,the intensive management increased the total porosity and non-capillary porosity by 1.08%and 104.54%,respectively,but decreased capillary porosity,natural water content,field water capacity and capillary water content by 4.52%,11.41%,6.12%and 2.28%,respectively.Additionally,the K_(10)'s of sandy red soil,yellowish red soil and red soil were elevated by 47.37%,54.29%and 22.73%respectively,indicating that intensive management led to an increase in the soil percolation rate.

关 键 词：土壤 物理性状 集约经营 绿竹 

分 类 号：S795[农业科学—林木遗传育种]