速生桉对土壤有机质含量及pH的影响  

Effects of fast-growing Eucalyptus on soil organic matter content and pH

作　　者：李许明 黄秋婵 黎琦琦 方雪荟 韦友欢 李福燕 LI Xu-ming;HUANG Qiu-chan;LI Qi-qi;FANG Xue-hui;WEI You-huan;LI Fu-yan(College of Biology and Bromatology,Guangxi Normal University for Nationalities,Chongzuo 532200,Guangxi,China)

机构地区：[1]广西民族师范学院生物与食品工程学院,广西崇左532200

出　　处：《湖北农业科学》2022年第5期20-22,共3页Hubei Agricultural Sciences

基　　金：广西高校中青年教师科研基础能力提升项目(2021KY0769);广西壮族自治区教改项目(2018JGA296);崇左市科技计划项目(崇科FA2020019);广西民族师范学院科研经费资助项目(2019BS001)。

摘　　要：分析了不同种植年份速生桉对不同深度土壤有机质含量及pH的影响。结果表明,种植桉树对10 cm和20 cm土层有机质含量影响较大,与对照相比,降幅分别达16.32%和23.94%;1~3年生桉树主要影响10~20 cm土层土壤有机质含量,5年生桉树主要影响10~40 cm土层土壤有机质含量。种植速生桉会导致耕地土壤pH上升,其中对10~30 cm土层土壤pH影响较小,对40 cm土层影响较大。从种植年份看,种植桉树第1年对土壤pH影响较小,第5年影响最大。种植桉树对土壤有机质含量和pH有明显影响,特别是5年生桉树对土壤影响最大,建议采取相关措施以保护耕地土壤环境。The effect of fast-growing Eucalyptus on soil organic matter content and pH were studied.The results showed that,planting Eucalyptus had the greater impact on the organic matter content in the soil of 10 cm and 20 cm depth,compared with the control,the decline of organic matter content reached 16.32% and 23.94%,respectively;1~3-year-old Eucalyptus mainly affects 10~20 cm soil organic matter content,and 5-year-old Eucalyptus will affect 10~40 cm soil organic matter content;Planting fast-growing Eucalyptus would lead to the increase of soil pH value in cultivated land,which had little impact on soil pH in 10 cm and 30 cm layers,and had a greater impact on soil pH in 40 cm layers;From the perspective of planting year,planting Eucalyptus had little impact on soil pH in the first year,and had the greatest impact in the fifth year.Planting Eucalyptus has a significant impact on soil organic matter and pH,especially 5-year-old eucalyptus has the greatest impact on soil,it is suggested to taking relevant measures to protect cultivated land soil environment.

关 键 词：速生桉 种植年份 土壤 有机质含量 PH 

分 类 号：S158.3[农业科学—土壤学] S792.39[农业科学—农业基础科学]