Drought experiments need to incorporate atmospheric drying to better simulate climate change
Drought experiments need to incorporate atmospheric drying to better simulate climate change
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DOI：
10.1093/biosci/biad105
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发表时间：
2023-12
期刊：
影响因子：
10.1
通讯作者：
A. Wright;Scott L. Collins
中科院分区：
文献类型：
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作者：
A. Wright;Scott L. Collins
气候模型预测未来将发生更频繁、更长时间和更极端的干旱。因此，干旱实验的数量和持续时间在不同的地理情景范围内变化，为估计干旱将如何影响未来的生态系统提供了一个强大的工具。过去的实验工作一直集中在气象干旱的操纵：防雨棚被用来减少降水输入到土壤中。这项工作有助于我们预测降雨量变化的预期影响。但干旱的非降雨成分又如何呢？我们回顾了最近的文献共同发生的，有时是不同的影响，大气干燥和气象干燥。我们讨论如何操纵气象干旱或降雨单独可能无法预测未来的变化，植物生产力，成分，或物种的相互作用，导致气候变化引起的干旱。我们提出建议，如何改善这些实验使用相对湿度的操纵。
Climate models predict more frequent, prolonged, and extreme droughts in the future. Therefore, drought experiments varying in amount and duration across a range of biogeographical scenarios provide a powerful tool for estimating how drought will affect future ecosystems. Past experimental work has been focused on the manipulation of meteorological drought: Rainout shelters are used to reduce precipitation inputs into the soil. This work has been instrumental in our ability to predict the expected effects of altered rainfall. But what about the nonrainfall components of drought? We review recent literature on the co-occurring and sometimes divergent impacts of atmospheric drying and meteorological drying. We discuss how manipulating meteorological drought or rainfall alone may not predict future changes in plant productivity, composition, or species interactions that result from climate change induced droughts. We make recommendations for how to improve these experiments using manipulations of relative humidity.