Reduced soil moisture caused by human disturbance mediates the biodiversity effects on ecosystem multifunctionality across stand ages in the temperate forests of North-Eastern China

IF 3.4 2区环境科学与生态学 Q1 BIODIVERSITY CONSERVATION

Global Ecology and Conservation Pub Date : 2025-08-08 DOI:10.1016/j.gecco.2025.e03789

Feifei Zhao , Minhui Hao , Chunyu Fan , Juan Wang , Senxuan Lin , Xiuhai Zhao , Yanxia Cheng , Klaus von Gadow , Chunyu Zhang

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引用次数: 0

Abstract

Human-influenced soil moisture significantly shapes the biodiversity effects on ecosystem functions in temperate forests. However, its role in regulating the biodiversity effects on ecosystem multifunctionality at different stages of stand development remains unclear. Accordingly, this study aims to explore how the soil moisture mediates the biodiversity effects on ecosystem multifunctionality across stand ages in a temperate forest region. Based on a set of forest survey data in northeastern China, we used structural equation models to quantify the direct and indirect effects of predictors on ecosystem multifunctionality. Linear mixed-effects models were fitted to assess the effects of soil moisture and other factors on the biodiversity-ecosystem multifunctionality relationships. The results show that human disturbance indirectly decreases biodiversity and ecosystem multifunctionality by affecting the soil moisture. Soil moisture, stand age and their interactions are significantly correlated with the biodiversity effects on ecosystem multifunctionality. It is concluded that reduced soil moisture caused by human disturbance decreases the biodiversity effects on ecosystem multifunctionality in middle-aged and old-growth stands, but increases the biodiversity effect in young-growth stands. The findings suggest that the contribution of biodiversity to ecosystem multifunctionality can be enhanced by regulating the human activities in temperate forests.

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人为干扰导致的土壤水分减少介导了东北温带森林林分林龄生态系统多功能性的生物多样性效应

人为影响的土壤湿度显著地影响了温带森林生态系统功能的生物多样性效应。但其在林分发育不同阶段调控生态系统多功能性的生物多样性效应中的作用尚不清楚。因此，本研究旨在探讨土壤水分如何调节温带林区不同林龄生态系统多样性的多功能性。基于东北森林调查数据，利用结构方程模型定量分析了预测因子对生态系统多功能性的直接和间接影响。采用线性混合效应模型评价土壤湿度等因子对生物多样性-生态系统多功能关系的影响。结果表明，人为干扰通过影响土壤水分间接降低了生物多样性和生态系统的多功能性。土壤水分、林龄及其相互作用与生物多样性对生态系统多功能性的影响显著相关。结果表明，人为干扰导致的土壤水分减少降低了中老林分生态系统多功能性的生物多样性效应，但增加了幼嫩林分生态系统多功能性的生物多样性效应。研究结果表明，通过调节温带森林的人类活动，可以增强生物多样性对生态系统多功能性的贡献。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Global Ecology and Conservation Agricultural and Biological Sciences-Ecology, Evolution, Behavior and Systematics

CiteScore

8.10

自引率

5.00%

发文量

346

审稿时长

83 days

期刊介绍： Global Ecology and Conservation is a peer-reviewed, open-access journal covering all sub-disciplines of ecological and conservation science: from theory to practice, from molecules to ecosystems, from regional to global. The fields covered include: organismal, population, community, and ecosystem ecology; physiological, evolutionary, and behavioral ecology; and conservation science.