41种亚热带植物大量元素和微量元素含量对干湿季节环境变化的不同反应

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中文摘要：季节性气候变化引起的植物叶片元素含量差异反映了植物的潜在生长策略.但季节性气候变化介导的元素分布模式尚不清楚,因此限制了对植物生长状态的评估和对全球气候变化下植物生长动态的预测.我们在湿季和干季时间段采集了41种亚热带常绿阔叶植物(包括:31种树木和10种灌木)叶片,通过电感耦合等离子体质谱仪(ICP-MS)测定了叶片中的大量和微量元素含量.研究结果显示,41种植物叶片大量元素含量在湿季显著大于干季,微量元素含量在湿季显著低于干季.湿季环境下乔木层植物叶片大量元素含量最高,干季环境下乔木层植物和湿季环境下灌木层植物次之,干季环境下灌木层植物最小;干季环境下乔木层植物和灌木层植物叶片微量元素含量最高,湿季环境下灌木层植物次之,最少的是湿季环境下乔木层植物.这些研究结果说明,不同垂直结构植物叶片大量元素和微量元素含量受季节气候变化的影响,湿季到干季的转变不利于乔木层植物的生长,而对灌木层植物生长的影响较小.这些发现对于预测亚热带常绿阔叶林不同垂直结构植物如何适应湿季和干季环境变化以及未来全球气候变化提供了宝贵的证据.

外文标题：Different responses of macro-and microelement contents of 41 subtropical plants to environmental changes in the wet and dry seasons

外文摘要：Differences in plant leafelemental contents due to seasonal climate change reflect potential plant growth strategies.However,the distribution patterns of elements mediated by seasonal climate change remain unclear.This limits assessment of plant growth status and prediction of plant growth dynamics under global climate change.We collected 41 subtropical evergreen broadleaf plant leaves(31 tree species and 10 shrub species)during the wet and dry seasons,and determined foliar contents of macro-and microelements by inductively coupled plasma mass spectrometer.Our results showed that 41 plant leaves had significantly greater macroelement contents and significantly lower microelement contents in wet season than dry season.The highest macroelement content was in tree layer plants in wet season,followed by tree layer plants in dry season and shrub layer plants in wet season,the lowest was in shrub layer plants in dry season.The highest microelement content was in tree and shrub layer plants in dry season,followed by shrub layer plants in wet season,the lowest was in tree layer plants in wet season.Our results show that macro-and microelement contents of plant leaves with different vertical structures are affected by seasonal climate change.The transition from wet to dry season was detrimental to tree layer plants growth,but had less impact on shrub layer plants growth.These findings provide valuable evidence for predicting how different vertically structured subtropical evergreen broadleaf plants can adapt to changes in wet and dry season environments and to future global climate change.

外文关键词：

subtropical forestdry and wet seasonmacroelementmicroelementtree layer plantsshrub layer plants

作者：

Zheng-Chao Yu、Xiao-Ting Zheng、Wei He、Wei Lin、Guan-Zhao Yan、Hui Zhu、Chang-Lian Peng

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作者单位：

School of Life Sciences and Food Engineering,Hanshan Normal University,Chaozhou 521041,China

Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring,Guangdong Provincial Key Laboratory of Biotechnology for Plant Development,School of Life Sciences,South China Normal University,Guangzhou 510631,China

关键词：

亚热带森林湿季和干季大量元素微量元素乔木层植物灌木层植物

基金：

国家自然科学基金Guangdong Provincial Key Laboratory of Functional Substances in Medicinal Edible Resources and Healthcare ProductsDoctor Initiating Project of the Hanshan Normal UniversityDoctor Initiating Project of the Hanshan Normal University

项目编号：

321714932021B 1212040015QD202235QD202236

出版年：

2023

DOI：

10.1093/jpe/rtad027

植物生态学报(英文版)

CSCD

ISSN：1752-9921

年,卷(期)：2023.(6)

参考文献量66