Lysimeters data from Windmoser and Michel 2020

This dataset contains a subset of lysimiters data collected at the experimental site Majadas de Tietar. The experimental site is collected in Majadas de Tietar (Casals et al., 2009) located in western Spain (39°56′25″N 5°46′29″W). The ecosystem is a typical “Iberic Dehesa”, which is characterized by an herbaceous stratum of native pasture and sparse trees, for the majority (~98%) Quercus ilex. The tree density is about 20–25 trees/ha⁠, the fractional cover of trees is about 20%, mean DBH of 46 cm, and a canopy height of about 8 m. (El-Madany et al., 2018). The herbaceous layer is composed of native annual species of the three main functional plant forms (grasses, forbs and legumes), whose fractional cover varies seasonally and is characterized by important inter-annual variations in the seasonal dynamics related to the onset of the dry period. Lysimiters data were collected an processed according to Perez-Priego et al., (2017) and (2018). The dataset was processed by Windmoser and Michel (2020) and it consist of 4 .xlsx files. The description of the variables can be found in Windmoser and Michel 2020. For information on the excel files reported here please contact Peter Widmoser &lt;[e-mail]&gt;. The other co-authors contributed to the data acquisition and to the processing of lysimeters and eddy covariance data, but not to the final production of the uploaded files. In case of questions on the lysimiters and eddy covariance data please contact the BAIE team (https://www.bgc-jena.mpg.de/bgi/index.php/Research/BAIE) <strong>References</strong> Casals, P. et al., 2009. Soil CO2 efflux and extractable organic carbon fractions under simulated precipitation events in a Mediterranean Dehesa. Soil Biol. Biochem. 41, 1915–1922. https://doi.org/10.1016/j.soilbio.2009.06.015. El-Madany, T.S.,et al., (2018). Drivers of spatio-temporal variability of carbon dioxide and energy fluxes in a Mediterranean savanna ecosystem 21. https://doi.org/10.1016/j.agrformet.2018.07.010 Perez-Priego O, et al., 2017. Evaluation of eddy covariance latent heat fluxes with independent lysimeter and sapflow estimates in a Mediterranean savannah ecosystem. Agricultural and Forest Meteorology. 236: 87-99. doi: 10.1016/j.agrformet.2017.01.009. Perez‐Priego, O., et al. (2018). Partitioning eddy covariance water flux components using physiological and micrometeorological approaches. <em>Journal of Geophysical Research: Biogeosciences</em>, 123, 3353– 3370. https://doi.org/10.1029/2018JG004637 Widmoser, P. and Michel, D.: Partial energy balance closure of eddy covariance evaporation measurements using concurrent lysimeter observations over grassland, Hydrol. Earth Syst. Sci. Discuss., https://doi.org/10.5194/hess-2020-299, in review, 2020本数据集包含采自马亚达斯德铁塔尔（Majadas de Tietar）试验站点的蒸渗仪（lysimeters）观测数据子集。该试验站点设于西班牙西部（北纬39°56′25″，西经5°46′29″）的马亚达斯德铁塔尔，相关背景可参见Casals等（2009）的研究。 该生态系统为典型的伊比利亚德赫萨（Iberic Dehesa），以本土草本植被层与稀疏林木为核心特征，其中98%左右的林木为冬青栎（Quercus ilex）。林木密度约为20~25株/公顷，树冠覆盖率约20%，平均胸径46厘米，冠高约8米（El-Madany等，2018）。 草本层由三大功能型本土一年生植物组成，涵盖禾草类、杂类草与豆科植物；其覆盖率随季节动态变化，且在与旱季起始相关的季节节律中存在显著的年际差异。 蒸渗仪观测数据的采集与处理严格遵循Perez-Priego等（2017，2018）的方法。本数据集由Widmoser与Michel（2020）完成最终处理，包含4个.xlsx格式文件。变量说明可参见Widmoser与Michel 2020年的研究成果。 若需获取本数据集所附Excel文件的相关信息，请联系Peter Widmoser，邮箱：[e-mail]。 其余共同作者参与了数据采集以及蒸渗仪与涡度协方差（eddy covariance）数据的处理工作，但未参与本上传文件的最终制作。 若对蒸渗仪与涡度协方差数据存在疑问，请联系BAIE团队（https://www.bgc-jena.mpg.de/bgi/index.php/Research/BAIE） <strong>参考文献</strong> Casals P 等，2009. 地中海德赫萨生态系统中模拟降水事件下的土壤CO₂排放与可提取有机碳组分. 土壤生物学与生物化学，41：1915–1922. https://doi.org/10.1016/j.soilbio.2009.06.015 El-Madany TS 等，2018. 地中海稀树草原生态系统二氧化碳与能量通量的时空变异驱动因子. https://doi.org/10.1016/j.agrformet.2018.07.010 Perez-Priego O 等，2017. 基于独立蒸渗仪与液流估算值评估地中海稀树草原生态系统的涡度协方差潜热通量. 农业与森林气象，236：87–99. doi: 10.1016/j.agrformet.2017.01.009 Perez-Priego O 等，2018. 基于生理学与微气象学方法拆分涡度协方差水通量组分. <em>地球物理学研究杂志：生物地球科学</em>，123：3353–3370. https://doi.org/10.1029/2018JG004637 Widmoser P, Michel D. 2020. 基于草地同步蒸渗仪观测值校正涡度协方差蒸发测量的部分能量平衡闭合. 水文学与地球系统科学讨论, https://doi.org/10.5194/hess-2020-299, 待刊