台湾牛樟人工林对引种区表层土壤化学性质的影响

为探明台湾牛樟人工林对引种区土壤化学性质的影响,研究在海南北部引种2年的台湾牛樟人工林、木棉-台湾牛樟混交林,以及添加天然有机质椰糠后土壤化学性质的变化。结果表明:以当地土壤(砖红壤)营造台湾牛樟人工林,0~20、20~40cm表层土壤的pH值较造林前下降了0.3个单位,主要土壤营养成分含量整体上增加,引种区土壤肥力提高;与台湾牛樟人工林相比,木棉-台湾牛樟混交林表层土壤速效钾、铵态氮和硝态氮含量分别提高了45.10%、15.84%和45.00%,土壤有机质、全氮、全钾、全磷、效磷含量降低,pH值与造林前相同;以1∶1比例混合红壤和椰糠基质营造台湾牛樟人工林,土壤pH值为3.97~3.99,表...

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Bibliographic Details
Published in广东农业科学 Vol. 44; no. 12; pp. 73 - 78
Main Author 邢文婷;陈培;许奕;陈显臻;董晓娜
Format Journal Article
LanguageChinese
Published 海南省香蕉遗传改良重点实验室,海南 海口 570102 2017
海南省林业科学研究所,海南 海口,571100%中国热带农业科学院海口实验站,海南 海口 570102
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ISSN1004-874X
DOI10.16768/j.issn.1004-874X.2017.12.012

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Summary:为探明台湾牛樟人工林对引种区土壤化学性质的影响,研究在海南北部引种2年的台湾牛樟人工林、木棉-台湾牛樟混交林,以及添加天然有机质椰糠后土壤化学性质的变化。结果表明:以当地土壤(砖红壤)营造台湾牛樟人工林,0~20、20~40cm表层土壤的pH值较造林前下降了0.3个单位,主要土壤营养成分含量整体上增加,引种区土壤肥力提高;与台湾牛樟人工林相比,木棉-台湾牛樟混交林表层土壤速效钾、铵态氮和硝态氮含量分别提高了45.10%、15.84%和45.00%,土壤有机质、全氮、全钾、全磷、效磷含量降低,pH值与造林前相同;以1∶1比例混合红壤和椰糠基质营造台湾牛樟人工林,土壤pH值为3.97~3.99,表层土壤速效钾、硝态氮、铵态氮显著高于对照(砖红壤),其他土壤主要营养成分含量低于对照。综上所述,营造台湾牛樟人工林可以提高引种区的土壤肥力,而与其他林分混交或添加有机质对增加引种区林地土壤肥力的效果较小。
Bibliography:44-1267/S
Cinnamomum kanehirae Hayata;introducing area;topsoil;forest types;substrate;chemical properties
In order to prove the effect of Cinnamomum kanehirae Hayata forest plantation on soil chemical properties of introducing area,the changes of soil chemical properties of C.kanehirae Hayata forest plantation,bombax-C.kanehirae Hayata forest plantation and after adding natural organic matter coconut bran in red soil for2years in the north Hainan province were studied.The results indicated that the topsoil pH value of0-20cm and20-40cm reduced by0.3units and the main nutrient content of topsoil increased in C.kanehirae Hayata forest plantation,which compared with before the afforestation,and it improved soil fertility.Compared with C.kanehirae Hayata forest plantation,the contents of soil available potassium,ammonium nitrogen and nitrate nitrogen improved by45.10%,15.84%and above45.0%,respectively,but the contents of soil organic matter,total nitrogen,total phosphorus,available phosphorus and potassiumdecreased
ISSN:1004-874X
DOI:10.16768/j.issn.1004-874X.2017.12.012