Diversity and biomass allocation of geophytes in Gutianshan National Nature Reserve, China
نویسندگان
چکیده
PDF HTML阅读 XML下载 导出引用 引用提醒 古田山自然保护区地下芽植物多样性及其生物量分配策略 DOI: 10.5846/stxb202207121992 作者: 作者单位: 作者简介: 通讯作者: 中图分类号: 基金项目: 浙江省自然科学基金(LY21C030005);国家自然科学基金(31971426) Diversity and biomass allocation of geophytes in Gutianshan National Nature Reserve, China Author: Affiliation: Fund Project: 省、部研究计划基金,The Natural Science Foundation (General Program, Key Major Research Plan) 摘要 | 图/表 访问统计 参考文献 相似文献 引证文献 资源附件 文章评论 摘要:地下芽植物能够通过地下储存器官占据生境资源、储存营养物质等策略来获得生态优势,其地下储存器官多样性以及生物量分配策略,对地下芽植物物种组成以及生态系统功能产生重要影响。然而,以往研究多关注草地生态系统的地下芽植物,对森林地下芽植物的了解仍然缺乏。采集了古田山国家级自然保护区不同海拔分布的693个草本植物个体,分析了地下芽植物及其地下储存器官的类型与多样性,比较了地下芽植物与非地下芽植物的地上、地下各器官的绝对、相对生物量。结果显示:(1)地下芽植物的相对丰富度为69.1%,相对多度为88.2%。大多为根状茎植物,主要由禾本科、莎草科、堇菜科和蕨类植物组成。(2)除茎外,地下芽植物各器官的绝对生物量(叶:1.94g,根:0.65g,地上部分:2.0g,地下部分:4.1g)均大于非地下芽植物(叶:0.26g,根:0.13g,地上部分:0.68g,地下部分:0.13g)。(3)地下芽植物叶(0.40)与茎(0.14)的相对生物量小于非地下芽植物(叶:0.48,茎:0.35),地下部分相对生物量(0.56)大于非地下芽植物(0.17)。本研究表明,以根状茎植物为主的地下芽植物是古田山亚热带森林生态系统草本植物的主要构成者,且个体普遍较大,倾向于将生物量投资于地下器官。这些结果为认识地下芽植物的生态策略与功能以及草本植物群落管理提供了科学依据。 Abstract:Underground storage organs enable to occupy habitat resources, store nutrients, thereby improve population fitness. The diversity underground their strategies have important impacts on the species composition ecosystem function geophytes. However, previous studies mostly focused grassland ecosystems understanding forest is still lack. In this study, 693 herbaceous plant individuals were collected from altitudinal gradients Zhejiang Province, China. types categorized absolute relative each aboveground organ belowground between non-geophytes compared. results showed that:(1) richness was 69.1% abundance 88.2%. Most rhizomatous plants, mainly composed Gramineae, Cyperaceae, Violaceae ferns. (2) Except for stems, all (leaves:1.94g, roots:0.65g, above:2.0g, below:4.1g) greater than that (leaves:0.26g, roots:0.13g, above:0.68g, below:0.13g). (3) leaves (0.40) stems (0.14) less (leaves:0.48, stems:0.35) parts (0.56) (0.17). It found which plants main constituents subtropical generally larger tended invest organs. These provide a scientific basis ecological functions management communities forests.
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ژورنال
عنوان ژورنال: Acta Ecologica Sinica
سال: 2023
ISSN: ['1000-0933', '1872-2032']
DOI: https://doi.org/10.5846/stxb202207121992