在一项长期森林生物多样性实验中,林分生产力受到强烈的嵌套性和更替效应的影响。

IF 8.3 1区 生物学 Q1 PLANT SCIENCES
New Phytologist Pub Date : 2024-10-23 DOI:10.1111/nph.20210
Lan Zhang,Bernhard Schmid,Franca J Bongers,Shan Li,Goddert von Oheimb,Keping Ma,Xiaojuan Liu
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引用次数: 0

摘要

多物种种植是造林项目中实现生态系统功能的重要方法。然而,在这种情况下,物种丰富度与特定物种组成的重要性仍未得到解决。为了估算两个群落之间的物种或功能群丰富度和组成变化,我们计算了嵌套度(即一个群落包含另一个群落的一个物种子集)和更替度(即两个群落在物种组成上有差异,但物种丰富度没有差异)。在中国亚热带的一个大型森林生物多样性实验中,我们利用 40 个树种的 315 个混合小区,评估了树种/功能群嵌套度和周转率对林分生产力的影响。我们发现,树种或功能群嵌套度和周转率的差异越大,不同地块间林分生产力的差异也越大。此外,在长达 11 年的观察期内,嵌套度和周转率对林分生产力的强烈影响也在不断扩大。我们的研究结果表明,在支持森林生产力功能方面,选择特定树种与种植大量树种同样重要。此外,特定树种的选择应以功能性为基础,因为功能群组成的有利影响强于树种组成的有利影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Strong nestedness and turnover effects on stand productivity in a long-term forest biodiversity experiment.
Multispecies planting is an important approach to deliver ecosystem functions in afforestation projects. However, the importance of species richness vs specific species composition in this context remains unresolved. To estimate species or functional group richness and compositional change between two communities, we calculated nestedness, where one community contains a subset of the species of another, and turnover, where two communities differ in species composition but not in species richness. We evaluated the effects of species/functional group nestedness and turnover on stand productivity using 315 mixed plots from a pool of 40 tree species in a large forest biodiversity experiment in subtropical China. We found that the greater the differences in species or functional group nestedness and turnover, the greater the differences in stand productivity between plots. Additionally, the strong effects of both nestedness and turnover on stand productivity developed over the 11-yr observation period. Our results indicate that selection of specific tree species is as important as planting a large number of species to support the productivity function of forests. Furthermore, the selection of specific tree species should be based on functionality, because beneficial effects of functional group composition were stronger than those of species composition.
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来源期刊
New Phytologist
New Phytologist 生物-植物科学
自引率
5.30%
发文量
728
期刊介绍: New Phytologist is an international electronic journal published 24 times a year. It is owned by the New Phytologist Foundation, a non-profit-making charitable organization dedicated to promoting plant science. The journal publishes excellent, novel, rigorous, and timely research and scholarship in plant science and its applications. The articles cover topics in five sections: Physiology & Development, Environment, Interaction, Evolution, and Transformative Plant Biotechnology. These sections encompass intracellular processes, global environmental change, and encourage cross-disciplinary approaches. The journal recognizes the use of techniques from molecular and cell biology, functional genomics, modeling, and system-based approaches in plant science. Abstracting and Indexing Information for New Phytologist includes Academic Search, AgBiotech News & Information, Agroforestry Abstracts, Biochemistry & Biophysics Citation Index, Botanical Pesticides, CAB Abstracts®, Environment Index, Global Health, and Plant Breeding Abstracts, and others.
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