Not All Light Spectra Were Created Equal: Can We Harvest Light for Optimum Food‐Energy Co‐Generation?
Not All Light Spectra Were Created Equal: Can We Harvest Light for Optimum Food‐Energy Co‐Generation?
复制标题
并非所有光谱都是一样的：我们可以收集光来实现最佳的食物能源热电联产吗？
DOI：
10.1029/2022ef002900
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
M. A. Abou Najm
中科院分区：
文献类型：
--
作者：
M. Camporese;M. A. Abou Najm
人类对粮食和能源日益增长的需求正在对我们的土地提出前所未有的产量目标。追求这些不断扩大的土地集约化目标导致了单一种植，并加剧了粮食和能源生产群体之间的分歧。在这里，我们认为，如果食物和能源可以在同一片土地上共同产生，这就不一定是一个零和游戏。热电联产可以带来可持续的集约化，但需要我们管理资源的方式发生范式转变，特别是光。使用植物光合作用和蒸腾作用的扩展模型，我们展示了植物如何对不同的入射光谱做出反应，并表明操纵光可以有效地提高土地和水的效率，从而可能改善土壤健康。这种知识可能会释放出有前途的现代农业技术的真实的潜力，这些技术的目标是优化光照分配，如农业。这项研究表明，光谱的蓝色部分在碳同化和水利用方面效率较低，可以更有效地用于生产太阳能，而红色部分可以有效地生产生物质。对最重要的作物和环境变量（辐照度、空气温度、湿度和CO2浓度）的敏感性分析表明，植物对不同光处理的反应对环境边界条件敏感，并且具有物种特异性。因此，有必要进一步研究，以评估哪些作物和气候更适合优化拟议的食物-水-能源关系。
Humanity's growing appetites for food and energy are placing unprecedented yield targets on our lands. Chasing those ever‐expanding land intensification targets gave rise to monocultures and sharpened the divide between food and energy production groups. Here, we argue that this does not have to be a zero‐sum game if food and energy can be co‐generated in the same land. Co‐generation can lead to sustainable intensification but requires a paradigm shift in the way we manage our resources, particularly light. Using an extended model of plant photosynthesis and transpiration, we demonstrate how plants react to different incident light spectra and show that manipulating light could be effective for boosting land and water efficiencies, thus potentially improving soil health. This knowledge can possibly unlock the real potential of promising modern agricultural technologies that target optimization of light allocations such as agrivoltaics. This study suggests that the blue part of the light spectrum is less efficient in terms of carbon assimilation and water use and could be more effectively used to produce solar energy, while the red part could efficiently produce biomass. A sensitivity analysis to the most important crop and environmental variables (irradiance, air temperature, humidity, and CO2 concentration) shows that plant response to different light treatments is sensitive to environmental boundary conditions and is species‐specific. Therefore, further research is necessary to assess which crops and climates are more suitable to optimize the proposed food‐water‐energy nexus.
影响因子：
3.7
作者：
Waller, Rebekah;Kacira, Murat;Yehia, Ibrahim
通讯作者：
Yehia, Ibrahim