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在维护红树林生态系统属性和过程方面,功能组成超过了分类学和功能多样性

Md Mizanur Rahman^1,2,3, Martin Zimmer^4,5, Daniel Donato⁶

¹School of Biological Sciences, The University of Hong Kong, Hong Kong, China.

Global change biology

|January 26, 2024

概括

功能组成,而不仅仅是物种丰富,是红树林生态系统健康和服务的关键. 多样化的红树林,高叶面积和气可以减轻诸如度上升等负面影响.

科学领域:

生态生态学生态生态学
环境科学环境科学
保护生物学保护生物学

背景情况:

生物多样性丧失影响了对人类福祉至关重要的生态系统服务.
了解环境因素,生物多样性和生态系统过程之间的相互作用至关重要,特别是在脆弱的红树林生态系统中.
红树林为全球数百万人提供了必不可少的生态系统服务.

研究的目的:

研究红树林中环境因素,生物多样性指标 (物种丰富,功能多样性) 和多种生态系统特性和过程 (MEPP) 之间的关系.
确定生物多样性的哪个方面 (物种丰富,功能多样性或功能组成) 最强烈地影响MEPP.
探索功能成分如何调解环境因素 (如盐度) 对MEPP的影响.

主要方法:

来自孟加拉国桑达尔班斯保护森林93个地块的综合数据集的整理.孟加拉国桑达尔班斯保护森林.
包括森林库存,植物特征和环境因素 (例如,沉积物有机碳,营养含量,盐度).
统计分析以评估生物多样性指标,环境因素和MEPP之间的关联,重点关注叶面积和叶 litter的功能组成 (FC).

主要成果:

叶面积的功能组成 (FC) 与MEPP的积极关联比物种丰富 (SR) 或功能多样性 (FD) 更强.
FC受红树林生物质,生产力和沉积物质 (有机碳,,,) 的影响.
FC调解了沉积物盐度的负相关性和SR与MEPP的正相关性,表明物种丰富的红树林可以抵消盐度的影响.

结论:

红树林的功能组成,特别是叶面积和含量,对于维持生态系统过程和服务至关重要.
丰富物种的红树林可以减轻环境压力因素的负面影响,例如度增加对生态系统功能.
保护和恢复工作应优先考虑具有特定功能特征 (高叶面积,高) 和功能多样性的物种,以确保适应性强的红树林生态系统.

关键词:

桑达尔班斯的红树林是一种红树林.生物多样性生物多样性功能特征功能特征功能特征多种生态系统属性和过程.基于自然的气候解决方案

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