Ozone effects on crops and consideration in crop models

作者：Lisa Emberson, Håkan Pleijel, Elizabeth A. Ainsworth, M. van den Berg, Wei Ren, Stephanie Osborne, Gina Mills, Divya Pandey, Frank Dentener, Patrick Büker, Frank Ewert, Renate Koeble, Rita Van Dingenen · 发表于：European Journal of Agronomy · 年份：2018 · DOI：10.1016/j.eja.2018.06.002 · 被引用次数：326 · 研究领域：Plant responses to elevated CO2、Atmospheric chemistry and aerosols、Plant Water Relations and Carbon Dynamics

We review current knowledge of the processes by which ozone will cause injury and damage to crop plants. We do this both through an understanding of the limitations to ozone uptake (i.e. ozone being transferred from some height in the atmosphere to the leaf boundary layer and subsequent uptake via the stomata) as well as through the internal plant processes that will result in the absorbed ozone dose causing damage and/or injury. We consider these processes across a range of scales by which ozone impacts plants, from cellular metabolism influencing leaf level physiology up to whole canopy and root system processes and feedbacks. We explore how these impacts affect leaf level photosynthesis and senescence (and associated carbon assimilation) as well as whole canopy resource acquisition (e.g. water and nutrients) and ultimately crop growth and yield. We consider these processes from the viewpoint of developing crop growth models capable of incorporating key ozone impact processes within modelling structures that assess crop growth under a variety of different abiotic stresses. These models would provide a dynamic assessment of the impact of ozone within the context of other key variables considered important in determining crop growth and yield. We consider the ability to achieve such modelling through an assessment of the different types of crop model currently available (e.g. empirical, radiation use efficiency, and photosynthesis based crop growth models). Finally, we show h...