首页|No generality in biodiversity-productivity relationships along elevation in temperate and subtropical forest landscapes

No generality in biodiversity-productivity relationships along elevation in temperate and subtropical forest landscapes

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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.

Biodiversity-ecosystem functioningClimate mitigationElevation gradientsForest managementForest productivityFunctional traitsNature conservationPhylogenetic diversity

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

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Ecosystem Dynamics and Forest Management Research Group,School of Life Sciences,Technical University of Munich,Hans-Carl-von-Carlowitz-Platz 2,85354,Freising,Germany

State Key Laboratory of Plant Diversity and Specialty Crops,Kunming Institute of Botany,Chinese Academy of Sciences,Kunming,650201,Yunnan,China

TUD Dresden University of Technology,Forest Zoology,Pienner Str.7,01737,Tharandt,Germany

Germplasm Bank of Wild Species,Kunming Institute of Botany,Chinese Academy of Sciences,Kunming,650201,Yunnan,China

Lijiang Forest Biodiversity National Observation and Research Station,Kunming Institute of Botany,Chinese Academy of Sciences,Lijiang 674100,China

Berchtesgaden National Park,Doktorberg 6,83471,Germany

Gund Institute for Environment,University of Vermont,617 Main Street,Burlington,VT 11 05405,USA

Faculty of Biological Sciences,Institute for Ecology,Evolution and Diversity,Conservation Biology,Goethe University Frankfurt,Frankfurt am Main,Germany

University of Chinese Academy of Sciences,Beijing,10049,China

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Sino-German Postdoc Scholarship Program of the China Scholarship Council(CSC)German Academic Exchange Service(DAAD)National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaMinistry of science and Technology of ChinaMinistry of science and Technology of ChinaMinistry of science and Technology of ChinaYouth Innovation Promotion Association,CASInternational Partnership Program,CASBavarian State Ministry of the Environment and Consumer Protection

32071541419710712021FY1002002021FY1007022023YFF08058022021392151853KYSB20190027

2024

10.1016/j.fecs.2024.100187

森林生态系统(英文版)
北京林业大学

森林生态系统(英文版)

CSTPCD
影响因子：0.09
ISSN：2095-6355
年,卷(期)：2024.11(3)
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