Data for "Ecosystem fluxes during drought and recovery in an experimental forest"

Data used to generate figures for first ecosystem scale publication form the B2 WALD campaign entitled "Ecosystem fluxes during drought and recovery in an experimental forest." This item also includes metadata, figures, and a readme. <br>Abstract:<br>Severe droughts endanger ecosystem functioning worldwide. We investigated how drought affects carbon and water fluxes in addition to soil-plant-atmosphere interactions by tracing ¹³CO₂ and deep-water ²H₂O label pulses and volatile organic compounds (VOCs) in an enclosed experimental rainforest. Ecosystem dynamics were driven by different plant functional group responses to drought. Drought- sensitive canopy trees dominated total fluxes but also exhibited the strongest response to topsoil drying. Although all canopy-forming trees had access to deep water, these reserves were spared until late in the drought. Belowground carbon transport was slowed, yet allocation of fresh carbon to VOCs remained high. Atmospheric VOC composition reflected increasing stress responses and dynamic soil-plant- atmosphere interactions, potentially affecting atmospheric chemistry and climate feedbacks. These interactions and distinct functional group strategies thus modulate drought impacts and ecosystem susceptibility to climate change. <br><br><i>For inquiries regarding the contents of this dataset, please contact the Corresponding Author listed in the README.txt file. Administrative inquiries (e.g., removal requests, trouble downloading, etc.) can be directed to [e-mail]</i><br>

用于生成B2 WALD研究campaign首个生态系统尺度出版物图表的数据，该出版物标题为《实验森林中干旱及恢复期间的生态系统通量》。本条目还包含元数据、图表及自述文件。<br>摘要：<br>全球范围内，严重干旱正威胁着生态系统功能。我们通过在封闭的实验雨林中追踪¹³CO₂标记脉冲、深层水²H₂O标记脉冲及挥发性有机化合物（VOCs），研究了干旱如何影响碳通量与水通量，以及土壤-植物-大气相互作用。生态系统动态由不同植物功能群对干旱的响应所驱动。对干旱敏感的冠层树木主导了总通量，同时也对表土干燥表现出最强的响应。尽管所有形成冠层的树木都能获取深层水，但这些储备直到干旱后期才被启用。地下碳运输减缓，但新鲜碳向VOCs的分配仍保持在较高水平。大气VOC组成反映了应激响应的增强及土壤-植物-大气相互作用的动态变化，这可能影响大气化学与气候反馈。因此，这些相互作用及不同功能群的策略调节着干旱影响及生态系统对气候变化的敏感性。<br><br><i>有关本数据集内容的咨询，请联系README.txt文件中列出的通讯作者。行政类咨询（如移除请求、下载问题等）可发送至[e-mail]</i><br>