Wildfires are confined to a smaller area when they burn through moist fuels (Image © Jessie Lewin). Different physiological strategies mean that some plant species will have wetter live tissues during the hot, dry weather typically associated with wildfires. In Scarff et al.’s study “Effects of plant hydraulic traits on the flammability of live fine canopy fuels” (https://doi.org/10.1111/1365-2435.13771), the authors document a 4‐fold variation between species in predicted moisture content during fire weather. Much of this is driven by variation in saturated moisture content ‐ how wet the tissues are when the plant is well supplied with water. This is an easily measured and widely reported species trait that could be used to improve fire prediction.

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封面图片和发行信息

当野火通过潮湿的燃料燃烧时，它们被限制在一个较小的区域内（图片©Jessie Lewin）。不同的生理策略意味着，在通常与野火有关的炎热干燥天气中，某些植物物种将具有较湿的活组织。在Scarff等人的研究“植物的水力性状对活的冠层燃料的可燃性的影响”（https://doi.org/10.1111/1365-2435.13771）中，作者证明了不同物种之间的4倍变异。火灾期间的预测水分含量。这主要是由饱和水分含量的变化所驱动的-当植物充分地被供水时，组织的湿润程度。这是一种易于测量且广泛报道的物种特征，可用于改善火灾预测。