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Towards a multiscale crop modelling framework for climate change adaptation assessment

Nature Plants

Bin PengKaiyu GuanJinyun TangElizabeth A. AinsworthSenthold AssengCarl J. BernacchiMark CooperEvan H. DeluciaJoshua W. ElliottFrank EwertRobert F. GrantDavid I GustafsonGraeme L. HammerZhenong JinJames W. JonesHyungsuk KimmDavid M. LawrenceYan LiDanica L. LombardozziAmy Marshall-ColonCarlos D. MessinaDonald R. OrtJames C. SchnableC. Eduardo VallejosAlex WuXinyou Yin, and Wang Zhou


Abstract

Predicting the consequences of manipulating genotype (G) and agronomic management (M) on agricultural ecosystem performances under future environmental (E) conditions remains a challenge. Crop modelling has the potential to enable society to assess the efficacy of G × M technologies to mitigate and adapt crop production systems to climate change. Despite recent achievements, dedicated research to develop and improve modelling capabilities from gene to global scales is needed to provide guidance on designing G × M adaptation strategies with full consideration of their impacts on both crop productivity and ecosystem sustainability under varying climatic conditions. Opportunities to advance the multiscale crop modelling framework include representing crop genetic traits, interfacing crop models with large-scale models, improving the representation of physiological responses to climate change and management practices, closing data gaps and harnessing multisource data to improve model predictability and enable identification of emergent relationships. A fundamental challenge in multiscale prediction is the balance between process details required to assess the intervention and predictability of the system at the scales feasible to measure the impact. An advanced multiscale crop modelling framework will enable a gene-to-farm design of resilient and sustainable crop production systems under a changing climate at regional-to-global scales.

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The Ort Lab is supported by many public and private partnerships, including the Bill & Melinda Gates Foundation, the Foundation for Food and Agriculture Research, the UK Government's Department for International Development, the U.S. Department of Energy, and the Advanced Research Projects Agency-Energy.

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