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. Abstract: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. 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]

本数据集收录了用于生成《B2 WALD 活动首次生态系统规模出版物》中图表的数据，该出版物题为《实验森林中干旱与恢复期间的生态系统通量》。数据集还包括元数据、图表和说明文档。摘要：全球范围内，严重干旱威胁着生态系统的功能。本研究通过追踪封闭实验雨林中的13CO2和深层水2H2O标记脉冲以及挥发性有机化合物（VOCs），探讨了干旱如何影响碳和水通量以及土壤-植物-大气相互作用。生态系统动力学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，同时也表现出对表层土壤干燥的最强响应。尽管所有冠层形成树木都能获取深层水，但这些储备直到干旱后期才被动用。地下碳传输速度放缓，但新鲜碳向VOCs的分配仍然较高。大气VOC组成反映了不断加剧的压力响应和动态的土壤-植物-大气相互作用，可能影响大气化学和气候反馈。这些相互作用及不同的功能群策略因此调节了干旱的影响以及生态系统对气候变化的敏感性。有关本数据集内容的查询，请联系README.txt文件中列出的通讯作者。行政查询（例如，删除请求、下载问题等）可发送至[e-mail]。