荒漠植物光合器官水平气体交换测定数据（2012）

2012年7月和8月中旬测定，植物种：柠条。 利用美国拉哥公司制造的LI-6400便携式光合作用系统（Portable Photosynthesis System, LI-COR, USA）和LI-3100叶面积仪等，对荒漠植物光合生理特性进行了观测。 观测资料中的符号含义如下： Obs，观测次数； Photo，净光合速率，μmol CO2•m–2•s–1； Cond，气孔导度，mol H2O•m–2•s–1； Ci，胞间CO2浓度，μmol CO2•mol-1； Trmmol，蒸腾速率，mmol H2O•m–2•s–1； Vpdl，水蒸气压亏缺，kPa； Area，叶面积，cm2； Tair，大气温度，℃； Tleaf，叶面温度，℃； CO2R，参照室CO2浓度，μmol CO2•mol-1； CO2S，样品室CO2浓度，μmol CO2•mol-1； H2OR，参照室水分，mmol H2O•mol-1； H2OS，样品室水分，mmol H2O•mol-1； PARo，光量子通量密度，μmol•m–2•s–1； RH-R，参照室空气相对湿度，%； RH-S，样品室空气相对湿度，%； PARi，光合作用有效辐射，μmol•m–2•s–1； Press，大气压，kPa； 其它为测定时的仪器状态参数等。Measurements were conducted in mid-July and mid-August 2012, targeting the plant species *Caragana korshinskii*. The photosynthetic physiological traits of desert plants were observed using a LI-6400 Portable Photosynthesis System (LI-COR, USA) and a LI-3100 Leaf Area Meter, among other instruments. The meanings of the symbols in the observational dataset are as follows: Obs: Number of observations; Photo: Net photosynthetic rate, μmol CO2•m–2•s–1; Cond: Stomatal conductance, mol H2O•m–2•s–1; Ci: Intercellular CO2 concentration, μmol CO2•mol-1; Trmmol: Transpiration rate, mmol H2O•m–2•s–1; Vpdl: Vapor pressure deficit, kPa; Area: Leaf area, cm²; Tair: Air temperature, ℃; Tleaf: Leaf temperature, ℃; CO2R: CO2 concentration in the reference chamber, μmol CO2•mol-1; CO2S: CO2 concentration in the sample chamber, μmol CO2•mol-1; H2OR: Water concentration in the reference chamber, mmol H2O•mol-1; H2OS: Water concentration in the sample chamber, mmol H2O•mol-1; PARo: Photon flux density, μmol•m–2•s–1; RH-R: Relative humidity of air in the reference chamber, %; RH-S: Relative humidity of air in the sample chamber, %; PARi: Photosynthetically active radiation, μmol•m–2•s–1; Press: Atmospheric pressure, kPa; The remaining parameters are instrument status parameters recorded during measurement.