Effects of plant diversity on productivity strengthen over time due to trait-dependent shifts in species overyielding
Effects of plant diversity on productivity strengthen over time due to trait-dependent shifts in species overyielding
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DOI：
10.1038/s41467-024-46355-z
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发表时间：
2024-03
影响因子：
16.6
通讯作者：
Liting Zheng;K. Barry;Nathaly R. Guerrero‐Ramírez;Dylan Craven;P. Reich;Kris Verheyen;M. Scherer‐Lorenzen;Nico Eisenhauer;Nadia Barsoum;J. Bauhus;H. Bruelheide;Jeannine Cavender‐Bares;Jiří Doležal;H. Auge;M. Fagundes;Olga Ferlian;Sebastian Fiedler;D. Forrester;G. Ganade;Tobias Gebauer;J. Haase;Peter Hajek;A. Hector;Bruno Hérault;Dirk Hölscher;K. Hulvey;Bambang Irawan;Hervé Jactel;J. Koricheva;H. Kreft;V. Lanta;J. Lepš;Simone Mereu;Christian Messier;F. Montagnini;Martin Mörsdorf;Sandra Müller;Bart Muys;C. Nock;A. Paquette;William C. Parker;John D. Parker;J. Parrotta;G. Paterno;M. Perring;Daniel Piotto;H. Wayne Polley;Q. Ponette;Catherine Potvin;Julius Quosh;B. Rewald;Douglas Godbold;J. van Ruijven;Rachel J. Standish;Artur Stefanski;L. Sundawati;Jon Urgoiti;L. Williams;B. Wilsey;Baiyu Yang;Li Zhang;Zhao Zhao-Zhao;Yongchuan Yang;H. Sandén;A. Ebeling;Bernhard Schmid;M. Fischer;M. Kotowska;C. Palmborg;David Tilman;Enrong Yan;Y. Hautier
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文献类型：
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作者：
Liting Zheng;K. Barry;Nathaly R. Guerrero‐Ramírez;Dylan Craven;P. Reich;Kris Verheyen;M. Scherer‐Lorenzen;Nico Eisenhauer;Nadia Barsoum;J. Bauhus;H. Bruelheide;Jeannine Cavender‐Bares;Jiří Doležal;H. Auge;M. Fagundes;Olga Ferlian;Sebastian Fiedler;D. Forrester;G. Ganade;Tobias Gebauer;J. Haase;Peter Hajek;A. Hector;Bruno Hérault;Dirk Hölscher;K. Hulvey;Bambang Irawan;Hervé Jactel;J. Koricheva;H. Kreft;V. Lanta;J. Lepš;Simone Mereu;Christian Messier;F. Montagnini;Martin Mörsdorf;Sandra Müller;Bart Muys;C. Nock;A. Paquette;William C. Parker;John D. Parker;J. Parrotta;G. Paterno;M. Perring;Daniel Piotto;H. Wayne Polley;Q. Ponette;Catherine Potvin;Julius Quosh;B. Rewald;Douglas Godbold;J. van Ruijven;Rachel J. Standish;Artur Stefanski;L. Sundawati;Jon Urgoiti;L. Williams;B. Wilsey;Baiyu Yang;Li Zhang;Zhao Zhao-Zhao;Yongchuan Yang;H. Sandén;A. Ebeling;Bernhard Schmid;M. Fischer;M. Kotowska;C. Palmborg;David Tilman;Enrong Yan;Y. Hautier
植物多样性对群落生产力的影响往往随着时间的推移而增加。多样性效应的加强是否是由物种水平的过度生产的时间变化引起的（即，与单一栽培相比，不同群落物种一级的生产力更高）仍不清楚。在这里，使用65个草地和森林生物多样性实验的数据，我们表明，在社区尺度上的多样性效应的时间强度是由产量的物种的时间变化。这些时间趋势的物种水平的丰产性形成的植物生态策略，这可以定量界定的功能性状。在草原上，生物多样性对群落生产力的影响的时间加强与资源保护物种的生物量随时间的推移而增加，以及以快速资源获取为特征的物种的产量增加或减少有关。在森林中，当考虑到地上和地下资源获取战略时，物种过度生产的时间趋势不同。光捕获能力强的树种，其茎生长的过度收获减少，而土壤资源获取能力强的树种，其茎生长的过度收获增加。我们的研究结果意味着，物种的多样性与不同的，潜在的互补性，生态策略是有益的，随着时间的推移，在草地和森林生态系统中维持社区生产力。
Plant diversity effects on community productivity often increase over time. Whether the strengthening of diversity effects is caused by temporal shifts in species-level overyielding (i.e., higher species-level productivity in diverse communities compared with monocultures) remains unclear. Here, using data from 65 grassland and forest biodiversity experiments, we show that the temporal strength of diversity effects at the community scale is underpinned by temporal changes in the species that yield. These temporal trends of species-level overyielding are shaped by plant ecological strategies, which can be quantitatively delimited by functional traits. In grasslands, the temporal strengthening of biodiversity effects on community productivity was associated with increasing biomass overyielding of resource-conservative species increasing over time, and with overyielding of species characterized by fast resource acquisition either decreasing or increasing. In forests, temporal trends in species overyielding differ when considering above- versus belowground resource acquisition strategies. Overyielding in stem growth decreased for species with high light capture capacity but increased for those with high soil resource acquisition capacity. Our results imply that a diversity of species with different, and potentially complementary, ecological strategies is beneficial for maintaining community productivity over time in both grassland and forest ecosystems.