24 °C in July, and the annual mean precipitation is 318 mm according to the weather data from 1957 to 2000. The soil texture is arenosol. At the shrubland site, the average shrub coverage was 20% and average canopy height was 0.5 m. At the forest plantation site, the average canopy height was 3.0 m in 2006, the third year after afforestation. The trees were 6 years old, after having grown for 3 years before transplanting. This age class is typical of plantation forests in this region. Each of the two sites was equipped with an eddy-covariance (EC) system consisting of an open-path infrared gas analyzer (LI-7500, Li-Cor, Lincoln, NE, USA) and a sonic anemometer/thermometer (CSAT3, Campbell Scientific Inc., Logan, USA). The EC measurement height was 2.5 m at the shrubland site and 10.0 m at the plantation forest. The EC signals were recorded at 10 Hz by a datalogger (CR5000, Campbell Scientific Inc.), and eddy fluxes of sensible heat, water vapor, momentum and CO2 were computed at 30 minutes intervals. Coordinate rotation was performed according to the planar fit method [Wilczak et al., 2001] and WPL density corrections were applied to the fluxes [Webb et al., 1980]. Air temperature was recorded at three heights (1.5 m, 2.5 m and 4.0 m at the shrubland site; 3.0 m, 6.0 m and 10.0 m at the forest plantation site) with HMP45AC probes (Vaisala, Helsinki, Finland). Soil water content was measured using CS616 probes (Campbell Scientific Inc.) at depths of 10, 20, 30, 50 cm at both sites. Net radiation was measured with Q-7.1 net radiometers (Radiation and Energy Balance Systems Inc., REBS, Bellevue, WA, USA) at the height of 4.0 m at the shrubland site and at the height of 10.0 m at the forest site.
24 °C in July, and the annual mean precipitation is 318 mm according to the weather data from 1957 to 2000. The soil texture is arenosol. At the shrubland site, the average shrub coverage was 20% and average canopy height was 0.5 m. At the forest plantation site, the average canopy height was 3.0 m in 2006, the third year after afforestation. The trees were 6 years old, after having grown for 3 years before transplanting. This age class is typical of plantation forests in this region. Each of the two sites was equipped with an eddy-covariance (EC) system consisting of an open-path infrared gas analyzer (LI-7500, Li-Cor, Lincoln, NE, USA) and a sonic anemometer/thermometer (CSAT3, Campbell Scientific Inc., Logan, USA). The EC measurement height was 2.5 m at the shrubland site and 10.0 m at the plantation forest. The EC signals were recorded at 10 Hz by a datalogger (CR5000, Campbell Scientific Inc.), and eddy fluxes of sensible heat, water vapor, momentum and CO2 were computed at 30 minutes intervals. Coordinate rotation was performed according to the planar fit method [Wilczak et al., 2001] and WPL density corrections were applied to the fluxes [Webb et al., 1980]. Air temperature was recorded at three heights (1.5 m, 2.5 m and 4.0 m at the shrubland site; 3.0 m, 6.0 m and 10.0 m at the forest plantation site) with HMP45AC probes (Vaisala, Helsinki, Finland). Soil water content was measured using CS616 probes (Campbell Scientific Inc.) at depths of 10, 20, 30, 50 cm at both sites. Net radiation was measured with Q-7.1 net radiometers (Radiation and Energy Balance Systems Inc., REBS, Bellevue, WA, USA) at the height of 4.0 m at the shrubland site and at the height of 10.0 m at the forest site.
wang_jgr_2018.docx