Data from plots: gas fluxes, plant traits, vegetation cover

All data are growing season means (May - September) per plot. Description of column headings: Microsite = the four microsites (plant community) described in the text. Year = 2012 (1), 2013 (2). Msite.Year = to identify the microsites by year (1 or 2). Plot = gas sampling plots, sampling for gas fluxes, environmental variables, plant traits and vegetation percent cover. logCH4 = log-transformed methane flux. NEE = net ecosystem CO2 exchange. GEP = gross photosynthesis. ER = dark respiration. WT = water table depth (m) below the peat surface. T_10 = peat temperature (degrees celsius) at 10 cm depth below the peat surface. woody(%) = proportion of woody species in the plot. evergreen(%) = proportion of evergreen species in the plot. aerenchyma(%) = proportion of species with aerenchyma tissue in the plot. LA = total leaf area of the plot (m2 per m2 of ground/plot area). Cham(m2m-2) = total leaf area of Chamaedaphne calyculata in the plot. Carex(m2m-2) = total leaf area of Carex oligosperma in the plot. Sfallax(m2m-2) = total leaf area of Sphagnum fallax in the plot. Smag(m2m-2) = total leaf area of Sphagnum magellanicum in the plot. Scusp(m2m-2) = total leaf area of Sphagnum cuspidatum in the plot. Scap(m2m-2) = total leaf area of Sphagnum capillifolium in the plot. Juncus (m2m-2) = total leaf area of Juncus effusus in the plot. Kalmia(m2m-2) = total leaf area of Kalmia angustifolia in the plot. Rhodo(m2m-2) = total leaf area of Rhododendron groenlandicum in the plot. Vacc(m2m-2) = total leaf area of Vaccinium corymbosum in the plot.

所有数据均为各试验样地的生长季（5月至9月）平均值。各列标题说明如下：
Microsite = 微生境（Microsite）：文本中描述的4类微生境（即植物群落）。
Year = 年份：2012年记为1，2013年记为2。
Msite.Year = 微生境-年份标识：用于按年份（1或2）区分微生境。
Plot = 样地：用于气体通量、环境变量、植物性状及植被盖度采样的气体采样样地。
logCH4 = 甲烷通量对数转换值。
NEE = 生态系统净CO₂交换（net ecosystem CO2 exchange）。
GEP = 总光合速率（gross photosynthesis）。
ER = 暗呼吸速率（dark respiration）。
WT = 地下泥炭层水位埋深（单位：m，即泥炭表面以下的水位深度）。
T_10 = 泥炭表层以下10 cm处的泥炭温度（单位：摄氏度）。
woody(%) = 样地内木本植物占比。
evergreen(%) = 样地内常绿植物占比。
aerenchyma(%) = 样地内具有通气组织的植物占比。
LA = 样地总叶面积（单位：m²/每平方米样地地面面积）。
Cham(m2m-2) = 样地内狭叶越橘（Chamaedaphne calyculata）的总叶面积。
Carex(m2m-2) = 样地内少孢薹草（Carex oligosperma）的总叶面积。
Sfallax(m2m-2) = 样地内尖叶泥炭藓（Sphagnum fallax）的总叶面积。
Smag(m2m-2) = 样地内马氏泥炭藓（Sphagnum magellanicum）的总叶面积。
Scusp(m2m-2) = 样地内尖刺泥炭藓（Sphagnum cuspidatum）的总叶面积。
Scap(m2m-2) = 样地内细叶泥炭藓（Sphagnum capillifolium）的总叶面积。
Juncus (m2m-2) = 样地内灯心草（Juncus effusus）的总叶面积。
Kalmia(m2m-2) = 样地内狭叶山月桂（Kalmia angustifolia）的总叶面积。
Rhodo(m2m-2) = 样地内格陵兰杜鹃（Rhododendron groenlandicum）的总叶面积。
Vacc(m2m-2) = 样地内伞房花越橘（Vaccinium corymbosum，即高丛蓝莓）的总叶面积。