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当前位置: 首页 > 文章 > 湘西建群树种营养元素特征分析 北方园艺 2014 (11) 73-76
Position: Home > Articles > Characteristics Analysis of Nutrient Elements of Domination Species in Xiangxi of Hunan Province Northern Horticulture 2014 (11) 73-76

湘西建群树种营养元素特征分析

作  者：
黄瑞春;曾琴;朱宁华
单  位：
中南林业科技大学林学院;湖南省湘西州森林生态研究试验站
关键词：
建群树种;营养元素含量;相关性
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。
译  名：
Characteristics Analysis of Nutrient Elements of Domination Species in Xiangxi of Hunan Province
作  者：
HUANG Rui-chun;ZENG Qin;ZHU Ning-hua;Xiangxi Forest Ecological Research Station of Hunan Province;School of Forestry,Central South University of Forestry and Technology;
关键词：
native tree species;;nutrient elements content;;correlation
摘  要：
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 intrees.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 megaphyllaand Cinnamomum bodinieri Levl;③Michelia maudiae Dunn;④Staphyleaceae by cluster analysis.

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