Characteristics of Water Surface Evaporation Variation and Meteorological Causes Analysis in the Luanhe River Basin
Based on the observation data of evaporation dishes from two typical hydrological stations in the Luanhe River Basin over the past 50 years,a trend significance test was conducted on the characteristics of water surface evaporation changes in the Luanhe River Basin,and the causes of these changes were analyzed.The results show that the overall water surface evaporation in the Luanhe River Basin has shown an increasing trend in the past 50 years,with an increase rate of 18.9 mm/10 a and 14.3 mm/10 a respectively.The increase in water surface evaporation in summer is the main reason for its annual evaporation increase.The temperature has a significant impact on water surface evaporation in the watershed,and the correlation is high regardless of the season.
water surface evaporationchange characteristicstrend testingmeteorological causesLuanhe River Basin