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Above- and below-ground complementarity rather than selection drive tree diversity–productivity relationships in European forests
Functional Ecology ( IF 4.6 ) Pub Date : 2021-05-09 , DOI: 10.1111/1365-2435.13825 Xin Jing 1 , Bart Muys 1 , Helge Bruelheide 2, 3 , Ellen Desie 1 , Stephan Hättenschwiler 4 , Hervé Jactel 5 , Bogdan Jaroszewicz 6 , Paul Kardol 7 , Sophia Ratcliffe 8 , Michael Scherer‐Lorenzen 9 , Federico Selvi 10 , Karen Vancampenhout 1 , Fons Plas 11, 12 , Kris Verheyen 13 , Lars Vesterdal 14 , Juan Zuo 1, 15 , Koenraad Van Meerbeek 1
中文翻译：
地上和地下的互补性而不是选择驱动了欧洲森林中的树木多样性-生产力关系
更新日期：2021-05-09
Functional Ecology ( IF 4.6 ) Pub Date : 2021-05-09 , DOI: 10.1111/1365-2435.13825 Xin Jing 1 , Bart Muys 1 , Helge Bruelheide 2, 3 , Ellen Desie 1 , Stephan Hättenschwiler 4 , Hervé Jactel 5 , Bogdan Jaroszewicz 6 , Paul Kardol 7 , Sophia Ratcliffe 8 , Michael Scherer‐Lorenzen 9 , Federico Selvi 10 , Karen Vancampenhout 1 , Fons Plas 11, 12 , Kris Verheyen 13 , Lars Vesterdal 14 , Juan Zuo 1, 15 , Koenraad Van Meerbeek 1
Affiliation
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- Biodiversity experiments have identified both complementarity and selection as important drivers of the relationship between biodiversity and ecosystem functioning. However, their relative importance in above- and below-ground ecosystem compartments of mature forests remains yet to be explored.
- We adopted a trait-based approach to partition biodiversity effects in above- and below-ground complementarity and selection. This approach was based on canopy and root traits measured in single- and mixed-species plots in mature forests across a European latitudinal gradient.
- We assessed the relative importance of above- and below-ground selection and complementarity in driving the relationship between tree species diversity and above-ground wood production. We used the expected values (based on the values measured in monocultures) of leaf area index (LAI) and fine root biomass as proxies for above- and below-ground selection, whereas canopy packing and rooting depth variability were used as proxies for above- and below-ground complementarity.
- Our results showed that tree species richness–wood production relationships were driven by above- and below-ground complementarity (i.e. canopy packing and rooting depth variability), rather than selection. The proxies for selection were found to have a positive effect on wood production but were not affected by tree species richness.
- We concluded that above-ground- but also the largely neglected below-ground complementarity drives biodiversity–productivity relationships in mature forests. Our findings suggest that choosing tree species with complementary above- and below-ground traits should be considered in afforestation and forest management to promote tree diversity and productivity in European forests.
中文翻译：
地上和地下的互补性而不是选择驱动了欧洲森林中的树木多样性-生产力关系
- 生物多样性实验已将互补性和选择确定为生物多样性与生态系统功能之间关系的重要驱动因素。然而，它们在成熟森林的地上和地下生态系统区划中的相对重要性仍有待探索。
- 我们采用了一种基于特征的方法来划分地上和地下互补性和选择中的生物多样性效应。这种方法基于在欧洲纬度梯度的成熟森林中的单一和混合物种地块中测量的冠层和根系特征。
- 我们评估了地上和地下选择和互补性在推动树种多样性与地上木材生产之间的关系方面的相对重要性。我们使用叶面积指数 (LAI) 和细根生物量的预期值（基于在单一栽培中测量的值）作为地上和地下选择的代表，而冠层堆积和生根深度变异性被用作地上选择的代表和地下互补性。
- 我们的结果表明，树种丰富度-木材生产关系是由地上和地下互补性（即冠层堆积和生根深度可变性）而不是选择驱动的。发现选择代理对木材生产有积极影响，但不受树种丰富度的影响。
- 我们得出的结论是，地上以及在很大程度上被忽视的地下互补性推动了成熟森林中的生物多样性-生产力关系。我们的研究结果表明，在植树造林和森林管理中应考虑选择地上和地下特征互补的树种，以促进欧洲森林的树木多样性和生产力。
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