Supporting biophysical data for "The ecosystem wilting point defines drought response and recovery of a Quercus-Carya forest"

The data in this product support analyses in the paper titled "The ecosystem wilting point defines drought response and recovery of a Quercus-Carya forest". The data in this submission include leaf area index (LAI_MOFLUX_2008_2009_2012.csv) and soil water retention curves (MOFLUX_SWRC_data.csv). <strong>Leaf area index</strong> Each data record in LAI_MOFLUX_2008_2009_2012.csv consists of transect level mean single-sided leaf area index (LAI) values for 5 transects measured during the growing seasons of years 2008, 2009, and 2012. Records are uniquely identified by Year and DOY (day of year). Data were collected using a plant canopy analyzer (model LAI-2000). Data columns are defined by headers. Missing data are represented by values of -9999. Table 1. Header definitions of LAI_MOFLUX_2008_2009_2012.csv data file. Column Header name Definition 1 Year Year of observation 2 DOY Day of year of observation 3 LAI_SE Mean LAI of southeast transect 4 LAI_S Mean LAI of south transect 5 LAI_SW Mean LAI of southwest transect 6 LAI_W Mean LAI of west transect 7 LAI_NW Mean LAI of northwest transect <strong>Soil water retention curves</strong> Soil water retention curves for two soil depth ranges (0-30 cm and &gt;30 cm) are reported in MOFLUX_SWRC_data.csv. Soil samples were collected near the MOFLUX tower. Samples were evaluated periodically for soil water potential using a dewpoint potentiometer (Decagon Devices, Model WP4C) and a pressure plate as they dried over time. There are 4 columns of data in MOFLUX_SWRC_data.csv. The first two columns contain data for the 0-30 cm depth range, and the second columns contain data for the &gt;30 cm depth range. Each curve is defined by volumetric water content (VWC, %) and soil water potential (SWP, MPa). Missing data are represented by values of -9999.本数据集支撑论文《生态系统萎蔫点定义栎-山核桃林的干旱响应与恢复》的相关分析。本次提交的数据包含叶面积指数（Leaf Area Index）数据文件LAI_MOFLUX_2008_2009_2012.csv，以及土壤水分特征曲线数据文件MOFLUX_SWRC_data.csv。 **叶面积指数**：LAI_MOFLUX_2008_2009_2012.csv中的每条数据记录，对应2008、2009及2012年生长季期间实测的5条样带的样带尺度平均单面叶面积指数数值。每条记录通过观测年份（Year）和日序（DOY，Day of Year）唯一标识。数据采用植物冠层分析仪（型号：LAI-2000）采集，数据列由表头定义，缺失值以-9999标记。表1为LAI_MOFLUX_2008_2009_2012.csv数据文件的表头说明： 1. Year：观测年份 2. DOY：观测日序 3. LAI_SE：东南样带平均叶面积指数 4. LAI_S：南样带平均叶面积指数 5. LAI_SW：西南样带平均叶面积指数 6. LAI_W：西样带平均叶面积指数 7. LAI_NW：西北样带平均叶面积指数 **土壤水分特征曲线**：MOFLUX_SWRC_data.csv中收录了两个土层深度范围（0~30 cm及＞30 cm）的土壤水分特征曲线。土样采集于MOFLUX通量塔附近，在自然风干过程中，研究人员采用露点水势仪（Decagon Devices，型号WP4C）与压力板仪，定期测定土壤水势（Soil Water Potential，SWP）。该数据文件共包含4列数据：前两列对应0~30 cm土层的相关数据，后两列对应＞30 cm土层的相关数据。每条曲线由体积含水量（Volumetric Water Content，VWC，%）与土壤水势（Soil Water Potential，SWP，MPa）定义，缺失值以-9999标记。