The Quantitative Study Of Soil Evaporation In Jing River Upstream Mountain Area Under The Cover Of Alpine Meadow

In this study, as the basis, in the Ebinur Lake tributaries upstream of theDongdujing mountain delineation of fine study area. Based on the principle ofecological hydrology, using the method of field observation experiment, study theEbinur Lake Basin is the typical vegetation evaporation evapotranspiration ofvegetation evapotranspiration, typical seasonal variation etc..The meteorological data of Jing river upper reaches of alpine meadow areathrough field experiments in the study area, environmental data and soil evaporationdata, on the basis of previous research findings, analysis and Simulation of the datausing statistical software, the change rule of alpine meadow soil moisture in the upperreaches of Jing river evaporation.On the basis of previous research results, made PVC tube length of microdistillation40cm seepage instrument, the treated with gauze cover, by weighingmethod, the actual soil evaporation data of alpine meadow covered under the.The soilevaporation data were analyzed, the change law of soil evaporation datain scale andhour scale is discussed.Correlation analysis was performed using SPSS statistical software for dataacquisition, discusses the relationship between the factors and soil evaporation andweather. The results showed that: soil evaporation and soil temperature,averagetemperature, correlation between the average ambient relative humidity and solarradiation is higher, the average relative humidity was negatively correlated with the.The use of SPSS statistical software14influencing factors of soil evaporationrelated to principal component analysis, two principal components were obtained byprincipal component analysis, two principal components can influence factors of soilevaporation summary for soil moisture factor, solar radiation, air and soil temperaturein three categories. The soil moisture content is the control of soil evaporation factor. Based on the correlation analysis and principal component analysis on theconstruction, changes of soil evaporation model of alpine meadow covered under the.After testing, model suitable for the study area; simulation of the average dailyevaporation data of each month using the model, combined with the meteorologicaldata, analyzes the seasonal change of soil evaporation amount of research area, theseasonal variation of soil evaporation is divided into three stages: soil evaporationstage--weak soil evaporation stage of change violent--soil evaporation stage.