广西林业科学2026，Vol.55Issue(3)：255-262,8.DOI:10.19692/j.issn.1006-1126.20260304
马尾松复层混交不同密度大叶栎对林分生长及土壤理化性质的影响
Effects of Pinus massoniana Multi-layer Mixed with Different Densities of Quercus griffithii on Stand Growth and Soil Physical and Chemical Properties
摘要
Abstract
In order to clarify effects of Pinus massoniana plantation multi-layer mixed with Quercus griffithii different densities on stand growth and soil physical and chemical properties,and screen suitable P.massoni-ana-Q.griffithii multi-layer mixed plantation configuration,two density treatments of P.massoniana-Q.griffithii mixed plantations were established(T1:3 000 individuals/hm2,T2:1 667 individuals/hm2)and taking P.massoniana pure plantation as control(CK),indexes of stand growth characteristics,timber value and soil physical and chemical properties were measured and entropy weight method was adopted to evaluate soil com-prehensive fertility.Results showed that multi-layer mixing could improve total timber value.Based on evalua-tion of soil fertility index(SFI),it was found that soil comprehensive fertility of T1 stand was significantly higher than those of T2 stands and CK.SFI showed as T1>T2>CK.Correlation analysis indicated that contents of soil organic carbon,total nitrogen,available phosphorus and hydrolyzable nitrogen as well as field capacity,capil-lary water-holding capacity,maximum water-holding capacity and bulk density were core factors to drive im-provement of SFI.SFI was significantly positively correlated with total stand accumulation and total timber val-ue.Multi-layer mixed mode of P.massoniana-Q.griffithii could realize synergistic effect of total timber value improvement and soil fertility improvement.High-density interplanting(T1)mode could rapidly increase total stand accumulation,improve soil fertility and enhance economic benefits,whereas low-density interplanting(T2)mode had obvious advantages in cultivating high-quality and large-diameter broad-leaved woods.关键词
复层混交林/林分生长/土壤肥力指数/马尾松/大叶栎Key words
multi-layer mixed plantation/stand growth/soil fertility index/Pinus massoniana/Quercus griffithii分类
农业科技引用本文复制引用
许文利,颜培栋,李鹏,黄建军,陈虎,杨章旗,胡颖..马尾松复层混交不同密度大叶栎对林分生长及土壤理化性质的影响[J].广西林业科学,2026,55(3):255-262,8.基金项目
"十四五"重点研发项目(2023YFD2200904) （2023YFD2200904）
"十四五"重点研发项目子课题(2023YFF1304402-04,2023YFF130440501) （2023YFF1304402-04,2023YFF130440501）
广西科技基地和人才专项(桂科AD19254004) （桂科AD19254004）
