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

作　　者：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 

机构地区：[1]Ecosystem Dynamics and Forest Management Research Group,School of Life Sciences,Technical University of Munich,Hans-Carl-von-Carlowitz-Platz 2,85354,Freising,Germany [2]State Key Laboratory of Plant Diversity and Specialty Crops,Kunming Institute of Botany,Chinese Academy of Sciences,Kunming,650201,Yunnan,China [3]Germplasm Bank of Wild Species,Kunming Institute of Botany,Chinese Academy of Sciences,Kunming,650201,Yunnan,China [4]Lijiang Forest Biodiversity National Observation and Research Station,Kunming Institute of Botany,Chinese Academy of Sciences,Lijiang,674100,China [5]Berchtesgaden National Park,Doktorberg 6,83471,Germany [6]Gund Institute for Environment,University of Vermont,617 Main Street,Burlington,VT 1105405,USA [7]Faculty of Biological Sciences,Institute for Ecology,Evolution and Diversity,Conservation Biology,Goethe University Frankfurt,Frankfurt am Main,Germany [8]University of Chinese Academy of Sciences,Beijing,10049,China [9]TUD Dresden University of Technology,Forest Zoology,Pienner Str.7,01737,Tharandt,Germany

出　　处：《Forest Ecosystems》2024年第3期255-265,共11页森林生态系统（英文版）

基　　金：supported by the Sino-German Postdoc Scholarship Program of the China Scholarship Council(CSC);the German Academic Exchange Service(DAAD);supported in part by the National Natural Science Foundation of China(Nos.32071541,41971071);the Ministry of Science and Technology of China(Nos.2021FY100200,2021FY100702,2023YFF0805802);the Youth Innovation Promotion Association,CAS(No.2021392);the International Partnership Program,CAS(No.151853KYSB20190027);the“Climate Change Research Initiative of the Bavarian National Parks”funded by the Bavarian State Ministry of the Environment and Consumer Protection.

摘　　要：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 from152 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 ecos

关 键 词：Biodiversity-ecosystem functioning Climate mitigation Elevation gradients Forest management Forest productivity Functional traits Nature conservation Phylogenetic diversity 

分 类 号：S718.5[农业科学—林学]