Knowing Your Roots

Posts tagged ‘water-energy cycle’

Plants, Water, and Landscapes

Blog 17When it is warm and dry, you have probably noticed that plants require a lot of water to stay healthy, but did you know that only 10% of the water a plant receives actually remains inside of it to support life processes? Plants lose the other 90% of their required water (liquid) as water vapor (gas) to the atmosphere through a process known as evapotranspiration (ET), which is a combination of water the plants emit from pores in their leaves (transpiration) and water that evaporates from soil and plant surfaces.  ET uses a tremendous amount of solar energy, and this energy use coupled to the plant water use is referred to as the water-energy cycle of a landscape. When humans alter the composition of plants across a landscape (i.e. urbanization, agriculture), they also alter the water-energy cycle.  (more…)

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