HUANG Rui-chun,ZENG Qin,ZHU Ning-hua.Characteristics Analysis of Nutrient Elements of Domination Species in Xiangxi of Hunan Province[J].Northern Horticulture,2014,38(11):65-68.
湘西建群树种营养元素特征分析
- Title:
- Characteristics Analysis of Nutrient Elements of Domination Species in Xiangxi of Hunan Province
- 文章编号:
- 1001-0009(2014)11-0065-04
- Keywords:
- native tree species; nutrient elements content; correlation
- 分类号:
- S 718. 55
- 文献标志码:
- A
- 摘要:
- 以湘西同密度的8树种人工林及其生境土壤为研究对象，对其营养元素含量、元素之间交互作用以及元素含量特征分类进行了研究，并根据林木中9种营养元素含量对8种林木进行了聚类分析。结果表明：植物营养元素含量以N最高，主要建群树种营养元素含量特点是Ca>K>Mg型；不同树种营养元素含量变异较大，Mn、Cu变异系数较大，N、P、K、Ca、Mg、Fe、Zn变异系数小于50%，其中N的变异系数最小；叶片营养元素含量比值表明，8树种均属于N制约型植物；元素间相关分析表明，P和K、Ca和Mg元素之间存在明显正相关关系；聚类分析结果表明，8树种分为4类，第1类为华榛、南酸枣和蓝果树，第2类为闽楠、黑壳楠和银木，第3类为深山含笑，第4类为银鹊。
- Abstract:
- The characteristics of the contents of 9 nutrient elements (N,P,K,Ca,Mg,Fe,Mn,Zn,Cu) in 8 plants species collected from Xiangxi were investigated.Nutrient element content,interaction between elements and element content feature classification were analyzed,cluster analysis were done for 8 plants species according to 9 elements content in trees.The results showed that the average contents of N was the highest in the all kinds of 9.The main character of the nutrient element contents was of the Ca>K>Mg type.On analyzing the coefficient of variation(C.V.,%),Mn and Cu had higher C.V.,while the C.V.of N,P,K,Ca,Mg,Fe,Zn was less than 50%,and the N had the lowest C.V..8 plants species were defined as the N limited plants based on the ratio of the elements in the leaves.There existed a significant positive correlation in the nutrient element of trees of P and K,Ca and Mg.The classification of 8 plant species were grouped into ①Corylus chinensis Franch, Choerospondias axillaris and Nyssa sinensis;②Phoebe bournei, Lindera megaphylla and Cinnamomum bodinieri Levl;③Michelia maudiae Dunn;④Staphyleaceae by cluster analysis.
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备注/Memo
第一作者简介：黄瑞春（1963-），男，工程师，现主要从事森林培育等研究工作。E-mail：huang0666@163.com.
责任作者：朱宁华（1964），男，副教授，现主要从事森林培育等研究工作。E-mail：225429@qq.com.
基金项目：湖南省科技厅重大课题专项资助项目（2012FJ100）。
收稿日期：2014-01-16