Unfolding the link between multiple ecosystem services and bundles of functional traits to design multifunctional crop variety mixtures

IF 6.4 1区 农林科学 Q1 AGRONOMY Agronomy for Sustainable Development Pub Date : 2023-10-17 DOI:10.1007/s13593-023-00924-6
Florence Dubs, Jerome Enjalbert, Sebastien Barot, Emmanuelle Porcher, Vincent Allard, Claude Pope, Arnaud Gauffreteau, Audrey Niboyet, Thomas Pommier, Sebastien Saint-Jean, Tiphaine Vidal, Xavier Le Roux
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引用次数: 1

Abstract

In face of the current environmental challenges, developing multifunctional cropping systems is increasingly needed, and crop variety mixtures are particularly interesting since they can deliver diverse services including grain production, yield stability, N2O production regulation, disease control, and reduction of N-fertilizer losses. However, the relationships between intraspecific diversity and ecosystem multifunctionality are poorly understood so far, and practitioners lack science-based guidance to design mixtures. We used a pool of 16 bread wheat varieties classified into 4 functional groups based on 26 below- and aboveground functional traits, to conduct a field trial (88 large plots cultivated with single varieties or mixtures of 2, 4, or 8 varieties), quantifying 15 provisioning and regulating services for each plot. To assess yield stability between local conditions and years, the trial was replicated at 4 other locations and for 2 years, using 2 managements each time. We analyzed how variety number and functional groups predicted the variance in services, and applied in an innovative manner the RLQ co-inertia analysis to relate the (variety × traits) matrix Q to a (plot × services) matrix R, using a (plot × variety) composition matrix L as a link. Our results show that using variety mixtures allowed delivery of baskets of services not reachable when cultivating single varieties, and that mixtures mitigated tradeoffs between different pairs of services. Variety number or functional groups poorly predicted the variance in services, but the RLQ approach allowed the identification of groups of plots delivering consistent baskets of services. Moreover, we demonstrated for the first-time significant relationships between specific baskets of services and bundles of variety traits. We discuss how our results increase our understanding of intraspecific diversity–agroecosystem multifunctionality relationships, and propose the next steps using our new approach to support practitioners for designing variety mixtures that provide particular baskets of services.

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展开多种生态系统服务和功能性状之间的联系,设计多功能作物品种组合
面对当前的环境挑战,越来越需要开发多功能种植系统,作物品种组合尤其令人感兴趣,因为它们可以提供多种服务,包括粮食生产、产量稳定、N2O生产调控、疾病控制和减少氮肥损失。然而,到目前为止,人们对种内多样性和生态系统多功能性之间的关系知之甚少,从业者在设计混合物时缺乏基于科学的指导。我们使用了一个由16个面包小麦品种组成的库,根据26个地上和地下功能性状分为4个功能组,进行了一项田间试验(88个大地块,用单一品种或2、4或8个品种的混合物培育),量化了每个地块的15个供应和调节服务。为了评估当地条件和年份之间的产量稳定性,在其他4个地点重复试验2年,每次使用2种管理方法。我们分析了品种数和官能团如何预测服务的方差,并以创新的方式应用RLQ共惯性分析,将(品种×性状)矩阵Q与(地块×服务)矩阵R联系起来,使用(地块×品种)组成矩阵L作为链接。我们的研究结果表明,使用品种混合物可以提供在培育单一品种时无法获得的一篮子服务,并且混合物减轻了不同服务对之间的权衡。品种数量或功能组对服务的差异预测不佳,但RLQ方法允许识别提供一致服务篮的地块组。此外,我们首次证明了特定服务篮和品种特征束之间的显著关系。我们讨论了我们的研究结果如何增加我们对种内多样性-农业生态系统多功能关系的理解,并提出了下一步行动,使用我们的新方法来支持从业者设计提供特定服务的品种混合物。
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来源期刊
Agronomy for Sustainable Development
Agronomy for Sustainable Development 农林科学-农艺学
CiteScore
10.70
自引率
8.20%
发文量
108
审稿时长
3 months
期刊介绍: Agronomy for Sustainable Development (ASD) is a peer-reviewed scientific journal of international scope, dedicated to publishing original research articles, review articles, and meta-analyses aimed at improving sustainability in agricultural and food systems. The journal serves as a bridge between agronomy, cropping, and farming system research and various other disciplines including ecology, genetics, economics, and social sciences. ASD encourages studies in agroecology, participatory research, and interdisciplinary approaches, with a focus on systems thinking applied at different scales from field to global levels. Research articles published in ASD should present significant scientific advancements compared to existing knowledge, within an international context. Review articles should critically evaluate emerging topics, and opinion papers may also be submitted as reviews. Meta-analysis articles should provide clear contributions to resolving widely debated scientific questions.
期刊最新文献
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