不同林龄桐棉松土壤水分—物理性质初探  

Preliminary Study on Soil Water-Physical Properties of Different Ages of Thespesia populnea

作　　者：付军 李学团 陆卫勇 陈振华 项栽芳 郭飞 陈虎[2] 李鹏 叶家义 Fu Jun;Li Xuetuan;Lu Weiyong;Chen Zhenhua;Xiang Zaifang;Guo Fei;Chen Hu;Li Peng;Ye Jiayi(Guangxi State-Owned Paiyangshan Forest Farm,Ningming,Guangxi 532500,China;Guangxi Zhuang Autonomous Region Forestry Research Institute,National Forestry and Grass Administration,Thespesia populnea Engineering Technology Research Center,Nanning,Guangxi 530002,China)

机构地区：[1]广西国有派阳山林场,广西宁明532500 [2]广西壮族自治区林业科学研究院/国家林业局桐棉松工程技术研究中心,广西南宁530002

出　　处：《绿色科技》2023年第10期52-56,共5页Journal of Green Science and Technology

基　　金：崇左市科技计划项目(编号:崇科攻2022ZC1202,2022ZC1215);广西自治区林业科技推广项目(编号:[2023]GT05号);广西自治区林业自筹科技项目(编号:桂林科研[2022 ZC]81和82号,2023GXZCLK 51号)。

摘　　要：采用时空互代法,以广西国有派阳山林场桐棉种源不同林龄马尾松人工林为研究对象,分析土壤水分-物理性质变化规律。结果表明:土壤容重、初渗速率和稳渗速率与林龄成反比,土壤渗透性、饱和持水量和稳渗时间与林龄成正比;土层深度与土壤容重、持水量和渗透性能成正比,与土壤孔隙度成反比。桐棉松人工林随着林龄的增长能够促进林分土壤的改善和恢复,具有一定的水土涵养能力和水文调节功能。The spatio-temporal mutual substitution method was used to analyze the variation of soil moisture and physical properties of Masson's pine plantation with different ages of Thespesia populnea in Paiyangshan Forest Farm,Guangxi.The results showed that soil bulk density,initial infiltration rate and stable infiltration rate were inversely proportional to forest age,while soil permeability,saturated water holding capacity and stable infiltration time were directly proportional to forest age;The depth of soil layer is in direct proportion to soil bulk density,water holding capacity and permeability,and in inverse proportion to soil porosity.With the growth of the age of the plantation,the Thespesia populnea plantation can promote the improvement and restoration of the forest soil,and has a certain capacity of water and soil conservation and hydrological regulation.

关 键 词：桐棉松 土壤容重 土壤持水量 土壤孔隙度 土壤渗透率 

分 类 号：X123[环境科学与工程—环境科学]