Jiayun Zou , Yahuang Luo , Rupert Seidl , Dominik Thom , Jie Liu , Lisa Geres , Tobias Richter , Linjiang Ye , Wei Zheng , Liangliang Ma , Jie Song , Kun Xu , Dezhu Li , Lianming Gao , Sebastian Seibold
{"title":"在温带和亚热带森林景观中,生物多样性与生产率之间的关系没有随海拔高度而变化的普遍性","authors":"Jiayun Zou , Yahuang Luo , Rupert Seidl , Dominik Thom , Jie Liu , Lisa Geres , Tobias Richter , Linjiang Ye , Wei Zheng , Liangliang Ma , Jie Song , Kun Xu , Dezhu Li , Lianming Gao , Sebastian Seibold","doi":"10.1016/j.fecs.2024.100187","DOIUrl":null,"url":null,"abstract":"<div><p>An improved understanding of biodiversity-productivity relationships (BPRs) along environmental gradients is crucial for effective ecosystem management and biodiversity conservation. The <em>stress-gradient hypothesis</em> suggests that BPRs are stronger in stressful environments compared to more favorable conditions. However, there is limited knowledge regarding the variation of BPRs along elevational gradients and their generality across different landscapes. To study how BPRs change with elevation, we harnessed inventory data on 6,431 trees from 152 plots surveyed twice in eight to ten year intervals in mountain forests of temperate Europe and subtropical Asia. We quantified the relationship between aboveground productivity and different biodiversity measures, including taxonomic, functional, and phylogenetic diversity. To elucidate the processes underlying BPRs, we studied the variation of different functional traits along elevation across landscapes. We found no general pattern of BPRs across landscapes and elevations. Relationships were neutral for all biodiversity measures in temperate forests, and negative for taxonomic and functional diversity in subtropical forests. BPRs were largely congruent between taxonomic, functional and phylogenetic diversity. We found only weak support for the <em>stress-gradient hypothesis</em>, with BPRs turning from negative to positive (effect not significant) close to the tree line in subtropical forests. In temperate forests, however, elevation patterns were strongly modulated by species identity effects as influenced by specific traits. The effect of traits such as community-weighted mean of maximum plant height and wood density on productivity was congruent across landscapes. Our study highlights the context-dependence of BPRs across elevation gradients and landscapes. Species traits are key modulating factors of BPRs and should be considered more explicitly in studies of the functional role of biodiversity. Furthermore, our findings highlight that potential trade-offs between conserving biodiversity and fostering ecosystem productivity exist, which require more attention in policy and management.</p></div>","PeriodicalId":54270,"journal":{"name":"Forest Ecosystems","volume":null,"pages":null},"PeriodicalIF":3.8000,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S219756202400023X/pdfft?md5=0e7238736a09be8b76cda38364902c5f&pid=1-s2.0-S219756202400023X-main.pdf","citationCount":"0","resultStr":"{\"title\":\"No generality in biodiversity-productivity relationships along elevation in temperate and subtropical forest landscapes\",\"authors\":\"Jiayun Zou , Yahuang Luo , Rupert Seidl , Dominik Thom , Jie Liu , Lisa Geres , Tobias Richter , Linjiang Ye , Wei Zheng , Liangliang Ma , Jie Song , Kun Xu , Dezhu Li , Lianming Gao , Sebastian Seibold\",\"doi\":\"10.1016/j.fecs.2024.100187\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>An improved understanding of biodiversity-productivity relationships (BPRs) along environmental gradients is crucial for effective ecosystem management and biodiversity conservation. 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No generality in biodiversity-productivity relationships along elevation in temperate and subtropical forest landscapes
An improved understanding of biodiversity-productivity relationships (BPRs) along environmental gradients is crucial for effective ecosystem management and biodiversity conservation. The stress-gradient hypothesis suggests that BPRs are stronger in stressful environments compared to more favorable conditions. However, there is limited knowledge regarding the variation of BPRs along elevational gradients and their generality across different landscapes. To study how BPRs change with elevation, we harnessed inventory data on 6,431 trees from 152 plots surveyed twice in eight to ten year intervals in mountain forests of temperate Europe and subtropical Asia. We quantified the relationship between aboveground productivity and different biodiversity measures, including taxonomic, functional, and phylogenetic diversity. To elucidate the processes underlying BPRs, we studied the variation of different functional traits along elevation across landscapes. We found no general pattern of BPRs across landscapes and elevations. Relationships were neutral for all biodiversity measures in temperate forests, and negative for taxonomic and functional diversity in subtropical forests. BPRs were largely congruent between taxonomic, functional and phylogenetic diversity. We found only weak support for the stress-gradient hypothesis, with BPRs turning from negative to positive (effect not significant) close to the tree line in subtropical forests. In temperate forests, however, elevation patterns were strongly modulated by species identity effects as influenced by specific traits. The effect of traits such as community-weighted mean of maximum plant height and wood density on productivity was congruent across landscapes. Our study highlights the context-dependence of BPRs across elevation gradients and landscapes. Species traits are key modulating factors of BPRs and should be considered more explicitly in studies of the functional role of biodiversity. Furthermore, our findings highlight that potential trade-offs between conserving biodiversity and fostering ecosystem productivity exist, which require more attention in policy and management.
Forest EcosystemsEnvironmental Science-Nature and Landscape Conservation
CiteScore
7.10
自引率
4.90%
发文量
1115
审稿时长
22 days
期刊介绍:
Forest Ecosystems is an open access, peer-reviewed journal publishing scientific communications from any discipline that can provide interesting contributions about the structure and dynamics of "natural" and "domesticated" forest ecosystems, and their services to people. The journal welcomes innovative science as well as application oriented work that will enhance understanding of woody plant communities. Very specific studies are welcome if they are part of a thematic series that provides some holistic perspective that is of general interest.