Recent fire history enhances semi-arid conifer forest drought resistance

Interaction effects from past climate change-amplified disturbances in fire-prone forests can produce ecological feedbacks that amplify or dampen subsequent disturbances. Climate change is increasing wildfire burned area, wildfire severity, and incidents of drought-induced forest dieback (widespread tree mortality). These climate change amplified disturbances threaten forest’s ability to regulate climate, provide water, and store carbon. Greater burned area makes interaction effects due to past fires more likely, which highlights the importance of understanding whether interaction effects produce negative or positive feedback on subsequent disturbances such as forest dieback. We constructed a forest chrono-sequence by combining a geospatial database of historical fire with a time series of Landsat satellite observations for forests in the Sierra Nevada of California to assess the impact of fire history on vegetation recovery, water use (evapotranspiration), and as feedback on subsequent..., , , # Recent fire history enhances semi-arid conifer forest drought resistance --- These data sets and scripts allow for the creation of all figures and supplementary figures, and tables in the following manuscript. When using these data and script, please cite the following manuscript. Norlen, C.A.; Hemes, K.S.; Wang, J.A.; Randerson, J.T.; Battles, J.J.; Tubbesing, C.L.; Goulden, M.L. (2024) \"Recent fire history enhances semi-arid conifer forest drought resistance\" *Forest Ecology and Management*. 573 (2024): 122331. [https://doi.org/10.1016/j.foreco.2024.122331](https://doi.org/10.1016/j.foreco.2024.122331) ## Data Access The data sets required to create the figures are available in the following DRYAD repository: Norlen, C.A.; Hemes, K.S.; Wang, J.A.; Randerson, J.T.; Battles, J.J.; Tubbesing, C.L.; Goulden, M.L. (2024). \"Recent fire history enhances semi-arid conifer forest drought resistance\" [Dataset]. Dryad. [https://doi.org/10.5061/dryad.s4mw6m9f2](https://doi.org/10.5061/dryad...,在易火森林中，由气候变化加剧的扰动所产生的交互效应，可引发生态反馈，进而增强或削弱后续扰动的影响。气候变化正在增加野火过火面积、野火烈度，以及干旱诱导的森林衰退（即大范围树木死亡）事件的发生频次。这些经气候变化加剧的扰动，正威胁森林调节气候、涵养水源与固碳的能力。更大的过火面积会增加过往火灾引发交互效应的可能性，这凸显了厘清交互效应对森林衰退等后续扰动产生负反馈还是正反馈的重要性。本研究结合加州内华达山脉森林的历史火灾地理空间数据库与陆地卫星（Landsat）时间序列观测数据，构建了森林年代序列，以评估火灾历史对植被恢复、水分利用（蒸散发，evapotranspiration）的影响，以及对后续扰动的反馈作用…… # 近期火灾历史提升半干旱针叶林抗旱性 本数据集与代码脚本可用于复现以下论文中的全部主图、补充图及表格。使用本数据集与脚本时，请引用如下论文： 诺伦（Norlen, C.A.）、赫姆斯（Hemes, K.S.）、王（Wang, J.A.）、兰德森（Randerson, J.T.）、巴特勒斯（Battles, J.J.）、图贝辛（Tubbesing, C.L.）、古登（Goulden, M.L.）（2024）《近期火灾历史提升半干旱针叶林抗旱性》，载于《森林生态与管理（Forest Ecology and Management）》，第573卷（2024年）：122331。[https://doi.org/10.1016/j.foreco.2024.122331] ## 数据获取 用于生成论文图表的数据集可通过以下Dryad仓储获取： 诺伦等人（2024）《近期火灾历史提升半干旱针叶林抗旱性》[数据集]. Dryad. [https://doi.org/10.5061/dryad.s4mw6m9f2]