ARES soil respiration data

This dataset describes monthly measurements of soil CO2 efflux, soil water content, and soil temperature in subplots with daily applications of root exudate solution (RE) or a procedural control solution (CP), applied using the Automated Root Exudate System (ARES) within experimental litter removal (0L) and control plots (1L) in an old-growth deciduous woodland in Wytham, Oxfordshire UK. Full descriptions of the study site and experimental design are given in the paper and appendices. Column headings and abbreviations are as follows: block = replicate block A-E; Plot = unique experimental plot identifier P1-P15; treatm = litter manipulation treatment, where 0L is litter removal and CT is control; ARES = subplot treatment, where RE is root exudate solution, CP is procedural control and 'plot' is the main litter manipulation plot; year = year of study; month = month of measurement; nom.date = nominal date of measurement (set at 1st of the month); time = consecutive time point during the study; swc = soil water content at 0-6 cm depth in %; temp10 = soil temperature at 0-10 cm depth; Rsoil = soil CO2 efflux in mg C m2-1 h-1; Flux = soil CO2 efflux in umol m-2 s-1; Comments = reasons for outliers and missing values; ObsDateTime = actual date and time of each measurement.本数据集记录了英国牛津郡怀瑟姆成熟落叶阔叶林内的实验样地亚样地的月度监测数据，监测指标包括土壤CO2通量（soil CO2 efflux）、土壤含水量（soil water content）与土壤温度。所有亚样地每日通过自动根分泌物系统（Automated Root Exudate System, ARES）施加根分泌物溶液（root exudate solution, RE）或过程对照溶液（procedural control solution, CP），实验设置包含凋落物移除样地（0L）与对照样地（1L）。本研究样地与实验设计的完整说明详见论文及附录。 列标题及缩写说明如下： block：重复区组，取值为A-E； Plot：唯一实验样地标识符，取值为P1-P15； treatm：凋落物调控处理，其中0L代表凋落物移除组，CT代表对照组； ARES：亚样地处理类型，其中RE为根分泌物溶液组，CP为过程对照组，'plot'代表主凋落物调控样地； year：研究年度； month：测量月份； nom.date：测量名义日期（设定为每月1日）； time：研究期间的连续时间点； swc：0-6 cm深度的土壤含水量，单位为%； temp10：0-10 cm深度的土壤温度； Rsoil：以mg C m⁻² h⁻¹为单位的土壤CO2通量； Flux：以μmol m⁻² s⁻¹为单位的土壤CO2通量； Comments：异常值与缺失值的成因说明； ObsDateTime：每次测量的实际日期与时间。