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[1]王冕之张晓蓉牟凌游成铭蒋龙 刘一霖刘群朱亮高卫龙徐振锋谭波**.亚热带常绿阔叶林优势植物4种矿质元素的分配特征*[J].应用与环境生物学报,2020,26(01):1-13.[doi:10.19675/j.cnki.1006-687x.2019.03048]
 WANG Mianzhi,ZHANG Xiaorong,MOU Ling,et al.Allocation of four mineral elements in dominant plants of subtropical evergreen broad-leaved forest *[J].Chinese Journal of Applied & Environmental Biology,2020,26(01):1-13.[doi:10.19675/j.cnki.1006-687x.2019.03048]
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亚热带常绿阔叶林优势植物4种矿质元素的分配特征*()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
26卷
期数:
2020年01期
页码:
1-13
栏目:
研究论文
出版日期:
2020-01-25

文章信息/Info

Title:
Allocation of four mineral elements in dominant plants of subtropical evergreen broad-leaved forest *
作者:
王冕之1张晓蓉2牟凌1游成铭1蒋龙1 刘一霖1刘群1朱亮1高卫龙1徐振锋1谭波1**
1四川农业大学生态林业研究所,长江上游林业生态工程四川省重点实验室 成都 611130
2四川阿坝藏族羌族自治州川西林业局 理县 623102
Author(s):
WANG Mianzhi1 ZHANG Xiaorong2 MOU Ling1 YOU Chengming1 JIANG Long1 LIU Yiling1 LIU Qun1 ZHU Liang1 GAO Weilong1 XU Zhenfeng1 & TAN Bo 1**
1 Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Institute of Ecology and Forestry, Sichuan Agricultural University, Chengdu 611130, China
2 Western Sichuan Forestry Bureau, Lixian 623102, China
关键词:
矿质元素植物功能群植物器官亚热带森林
Keywords:
mineral elements plant functional groups plant organs subtropical forest
DOI:
10.19675/j.cnki.1006-687x.2019.03048
摘要:
植物对矿质元素的吸收和利用是衡量森林群落养分状况的重要指标。为了解亚热带常绿阔叶林植物群落矿质元素分配特征,以华西雨屏区亚热带常绿阔叶林优势植物为对象,于2017年8月采集了乔木、灌木和草本植物的根、茎、皮、枝、叶样品,研究了森林群落优势植物矿质元素K、Ca、Na、Mg的分配特征。结果表明:优势植物矿质元素平均浓度表现为Ca > K > Mg > Na ;不同功能群各元素浓度存在一定差异,K和Mg浓度以乔木植物最低,Ca和K浓度分别以灌木和草本植物最高,Na浓度在植物功能群间无明显变化;不同植物功能群相同器官的矿质元素浓度明显不同,根系K、Ca和Mg浓度以乔木植物最低,叶片K、Ca、Na和Mg浓度以灌木植物最高,乔木和灌木植物枝条矿质元素浓度差异不显著;同一植物功能群的不同器官显著影响矿质元素浓度,乔木植物Ca浓度以树皮最高,灌木植物K、Ca和Mg元素浓度以枝条最低,草本植物叶片和根系矿质元素无显著差异;K与Mg和Na元素浓度以及Ca与Mg元素浓度显著正相关,Na与Ca和Mg元素浓度呈显著负相关,K和Ca元素浓度相关不显著。因此,亚热带常绿阔叶林植物矿质元素的分配不仅受到功能群及其器官的影响,还受到元素间的相互作用影响。(图4 表2 参55 附表1)
Abstract:
The absorption and utilization of mineral elements by plants is an important indicator to assess the nutrient status of forest communities. In order to understand the distribution pattern of mineral elements in the subtropical evergreen broad-leaved forest, the dominant plants of subtropical evergreen broad-leaved forest in the Rainy Area of West China were investigated in this study. The roots, stems, barks, twigs and leaves of trees, shrubs and herbs were sampled to measure four mineral elements (K, Ca, Na and Mg) in dominant plants in August 2017. The average concentrations of these mineral elements ranked as Ca > K > Mg > Na. The concentrations of mineral elements differed significantly among plant functional groups. The lowest K and Mg concentrations were observed in tree species, while the highest Ca and K concentrations were observed in shrubs species and herbs species, respectively. However, Na concentration was not significant among plant functional groups. Moreover, the concentrations of mineral elements in the same plant organs varied obviously among plant functional groups. The root K, Ca and Mg concentrations were lowest in trees species, while the leaf K, Ca, Na and Mg concentrations were highest in shrubs species, and the four mineral elements concentrations in twig were not significant between trees species and shrubs species. Furthermore, the plant organs significantly affected the concentrations of mineral elements in the same plant functional groups. The bark Ca concentration was lowest in trees species, whereas the twig K, Ca, and Mg concentrations were lowest in shrubs species, and the differences between root and leaf mineral elements concentrations were not significant in herbs species. Additionally, the K concentration was positively correlated with the Mg and Na concentration, as is the concentration of Ca and Mg. And the Na concentration was negatively correlated with the Ca and Mg concentration, but the correlation between the K and Ca concentration was not significant. These results suggest that the allocation of mineral elements in subtropical evergreen broad-leaved forests is not only affected by plant functional groups and their organs, but also by interactions among mineral elements.

备注/Memo

备注/Memo:

收稿日期 Received: 2019-03-24 接受日期 Accepted: 2019-06-28
*国家重点研发计划项目(2017YFC0503906)、四川省重大科技专项(2018SZDZX0030)、国家自然科学基金项目(31570445, 31870602)和四川农业大学科研兴趣培养项目(2019267)资助
**通讯作者 Corresponding author (E-mail: bobotan1984@163.com)
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更新日期/Last Update: 2019-07-05