摘要
为分析套种草珊瑚对杉木人工林土壤养分的影响,本研究以杉木林和杉木-草珊瑚套种林两个林分类型为研究对象,在2019年1、4、7、9、11月采集两种林分不同土层土壤样品,检测分析两种林分不同土层土壤样品的pH值,以及有机质、全氮、碱解氮、全磷、有效磷、全钾和速效钾等养分含量的差异。结果表明,杉木林下套种草珊瑚可以提高土壤pH值,增加土壤有机质、全氮、碱解氮、全磷、有效磷、全钾和速效钾的含量;在养分流失严重的春夏季,套种草珊瑚有利于杉木林土壤中养分的积累。杉木林下套种草珊瑚对土壤养分有一定影响,能提高土壤养分含量,有利于提高林地生态和经济效益。
In order to analyze the effects of intercropping coral on soil nutrients of Cunninghamia lanceolata plantation,this study took two stands of C.lanceolata plantation and C.lanceolata intercropping Sarcandra glabra plantation as the research object.By collecting soil samples in different layers(0~10 cm layer and 10~20 cm layer)at five time points(January,April,July,September and November in 2019),the contents of pH,organic matter,total nitrogen,alkali-hydrolyzable nitrogen,total phosphorus,available phosphorus,total potassium and available potassium were detected and analyzed.The results showed that soil pH and contents of soil organic matter,total nitrogen,alkali-hydrolyzable nitrogen,total phosphorus,available phosphorus,total potassium and available potassium were increased by planting S.glabra under C.lanceolata forest.In spring and summer when nutrient loss was serious,interplanting S.glabra was beneficial to nutrient accumulation in soil of C.lanceolata forest.Soil nutrients were significantly affected by planting S.glabra under C.lanceolata forest,and soil nutrient content was increased,which was beneficial to improve forest ecological and economic benefits.
作者
林洪
黄晶
黄明辉
江民
吴韬
贾全全
朱培林
Lin Hong;Huang Jing;Huang Minghui;Jiang Min;Wu Tao;Jia Quanquan;Zhu Peilin(Jiangxi Academy of Forestry,Nanchang Jiangxi 330013,China;Quannan Tianlong Forestry Assets Management Co.,Ltd,Ganzhou Jiangxi 341899,China;Key Laboratory of traditional Chinese medicine planting technology and quality research of Nanchang City,Nanchang Jiangxi 330013,China)
出处
《南方林业科学》
2023年第3期40-43,共4页
South China Forestry Science
基金
江西省林业科学院青年科技人才培养项目(项目编号:2019522802)
国家重点研发计划项目(项目编号:2017YFC05055051)。
关键词
套种
杉木
草珊瑚
土壤养分
intercropping
Cunninghamia lanceolata
Sarcandra glabra
soil nutrients
