Using some climatic factors to estimate transpiration-evaporation reference

الملخص

Some climatic factors, the most important of which are humidity, air temperature, wind speed and the number of hours of sunshine, affect the estimation of the transpiration value – reference evaporation (ETP) and consequently on plant water consumption.in this research, climatic factors that have an effect on evapotranspiration-evapotranspiration have been linked, thus based on the actual  need for plants, and a comparison between the result, the climatic data were taken from the Homs station for climatic. It was found from the research that the temperature and solar brightness have a great impact on transpiration –evaporation where the coefficient of determination reached(85%,94%) respectively. The research also concluded that the relationship between humidity and evaporation is an inverse relationship, as the higher

the humidity values, the lower the transpiration –evaporation values while the effect of wind was weak. on transpiration –evaporation, with a limiting coefficient of up to 21%.