Study of Biochemical changes in Preeclamptic Women

Abstract

We collected evapotranspiration data of Dajiuhu peatland in Shennongjia from 2016 to 2017 with eddy covariance method and estimated the value of crop coefficient (K_c) using FAO56 Penman-Monteith equation and the linear relationship between actual evapotranspiration (ET_a) and referenced evapotranspiration (ET₀). We analyzed the characteristics of referenced evapotranspiration and its main influencing factors and calculated the crop coefficient of the wetland dominated by Sphagnum. The results showed that the daily averaged ET_a were 1.63 and 1.38 mm·d^-1 in 2016 and 2017, the daily averaged ET₀ were 1.61 and 1.23 mm·d^-1 in 2016 and 2017. Environmental factors influencing ET₀ included net radiation, air temperature, vapor pressure deficit, wind speed, and relative humidity. The K_c values for the growing seasons of 2016, 2017, and 2016-2017 were 0.95 (R² of linear regression between ET_a and ET₀ was 0.96), 1.03 (R²=0.95), and 0.98 (R²=0.95). The K_c values in 2016, 2017, and 2016-2017 were 0.92 (R²=0.94), 0.95 (R²=0.89), and 0.93 (R²=0.92). K_c was effective in the range of 0.92-1.03 for the wetland dominated by Sphagnum. The identified parameters could be widely used in studies on climate change, ecosystem services, and water management in peatlands.