41. If potential evapotranspiration is greater than actual precipitation, then soil will dry out, unless irrigation is used. 42. This allows for both actual and potential evapotranspiration to be calculated on a pixel-by-pixel basis. 43. Any salts that do accumulate can affect evapotranspiration rates, so it is best regularly check the ceramic plate. 44. Additional effects may include evapotranspiration , presence or absence of tree canopy, and snow and ice melting effects. 45. Forests moderate the local climate and the global water cycle through their light reflectance ( albedo ) and evapotranspiration . 46. Vegetated surfaces also have a cooling effect, as the foliage gives off moisture in a process known as evapotranspiration . 47. Methods for measuring evapotranspiration can be adapted to an urban setting to estimate the water requirements of urban landscape vegetation. 48. In order to solve the equation, the rate of evapotranspiration as a function of soil moisture must be known. 49. The United Nations Food and Agriculture Organization ( FAO ) standard methods for modeling evapotranspiration use a Penman Monteith equation. 50. Water is one of the most precious and important natural assets in the precipitation and high evaporation and evapotranspiration rates.
