PPT-Evaporation and Transpiration

Evapotranspiration or ET 62 of precipitation that falls on the continents is evaporated Understanding and predicting climate change QPET PET is the water available for use ET loss supports ecosystems and agriculture. Evapotranspiration. P. = Q + . ET. + G + . Δ. S. Evaporation. Transfer of H. 2. O from liquid to vapor phase. Diffusive process driven by . Saturation (vapor density) gradient ~ (. r. s. – . r. Evaporation is the process in which a liquid changes to the gaseous state at the free surface, below the boiling point through the transfer of heat energy . The rate of evaporation is depended on the of polonium . from. lead-. bismuth. . eutectic. . nuclear. . coolant. Borja Gonzalez . Prieto. 1,2. , Jun . Lim. 1. , Kris . Rosseel. 1. , Johan . Martens. 2. . and Alexander . Aerts. 1. 1. Conditioning. Mr. West . AP Biology . 1. Definition. Transpiration. is the evaporation of water from the aerial parts of plants.. Of all the water plant absorbs, over 95-99% is transpired to the air as water vapor.. Evapotranspiration. P. = Q + . ET. + G + . Δ. S. Evaporation. Transfer of H. 2. O from liquid to vapor phase. Diffusive process driven by . Saturation (vapor density) gradient ~ (. r. s. – . r. Stomatal. Mechanism. Stomata. Stomatal. Mechanism. pores . or . gaps . in the lower epidermis through which gaseous exchange . and water loss take place. Found in leaves and stems. Surrounded by. . A . S. tory of Clean . A. ir . by. Sandra J. . Connelly. Thomas . H. Gosnell School of Life . Sciences. Rochester . Institute of Technology, Rochester, NY. NATIONAL CENTER FOR CASE STUDY TEACHING IN SCIENCE. How is evaporation measured?. How is evaporation estimated?. Reading: Applied Hydrology Sections 3.5 and 3.6. With assistance from Dan Siegel and Marcy Litvak. Evaporation. What is evaporation?. How is evaporation measured?. A process whereby liquid water is . converted to water vapour. and . removed from the vapour surface.. Evaporation consists of 2 components i.e. The energy component and the aerodynamic component. The energy component is responsible conversion of liquid water to water vapour. Hydrology and Water Resources . RSGIS. Institute of Space Technology. October . 11 & 23, . 2013. Infiltration, Percolation, Seepage. Infiltration. Water moving into soil by crossing the soil surface. “Net rate of vapor transport to the atmosphere”. Reverse process of precipitation. Evaporation considered to be a problem for reservoirs storage on one hand may prove very valuable on the other hand . Do now activity:. Which cells open and close the stomata?. Describe the process of transpiration?. Explain why the root hair cell in the plant needs a large surface area.. GOOD PROGRESS:. - . Identify. Dr. Habibur Rahman. Associate Professor. J. N. College, Boko . Introduction:. The loss of water in the form of vapor from the living tissues of aerial parts of plant such as leaf, stem, leaves etc. is termed as transpiration.. How does water move into, through and out of a plant?. Transpiration. Transpiration. – evaporation of water from the leaves.. Transpiration stream. – movement of water through the plant.. Root Structure.