Lab 7 LAB 7-Water Budget Key Ideas Infiltration Subsurface water Ground water Wa
ID: 290683 • Letter: L
Question
Lab 7 LAB 7-Water Budget Key Ideas Infiltration Subsurface water Ground water Water table Soel water Field capacity Soil water storage Actual evapotranspiration Potential evapotranspiration Soil water surplas Soil water deficit Wilting point Water budget Discussion Subsurface Water The distribution of water on the planet might surprise you (Table 7-1). By far most of the world's water water, respectively, constitute the third and fourth largest accumulations of water on earth. Together is im the oceins. The second largest amount is stored in ice sheets and glaciers. Ground water and soil ground water and soil water make up subsurface water. Water enters the subsurface realm through a process called infiltratiom, which is basically soaking into the ground. Subsurface water is held in and often travels slowly through cracks in rocks and in voids (spaces) between soil particles. Ground water I water does. In the ground water zone, all the available voids, cracks, and spaces are filled with water. The top of the ground water zone is known as the water table Table 7-1 97.200% 21500% 0.620% 0.005% 0002% 0.001% 0.0001% oceans ice sheets and glaciers ground water soil water fresh and salt lakes the atmosphere streams Above the water table, in the soil water zone, voids and cracks almost always contain some air as well as some water. It is in the soil water zone where most plants use their roots to take up the water that they need. After a series of storms, the voids in the soil water zone may be totally filled with water. Some of this water, however, soon drains down to the ground water zone by gravity, leaving an ideal mix of water and air for plant growth, a condition known as field capacity. Water that does not percolate down to the ground water zone will stay in the soil water zone for a while as storage from this stored soil water that plants can draw their water even if it hasn't precipitated for some time. When precipitation again allows the soil water to exceed field c (ST). It is apacity the excess amount over field drains down to the water table. This excess over field capacity is called the soil water surplus 61 GEO 121 D-G-Spring 2018Explanation / Answer
Ans D)
The present pattern of the soil water surpluses and deficits shows that there is a surplus of soil water during the winter months and a deficit during the summer month. If the predicted climate changes occur we can see that there will be no month throughout the year where there will be any surplus of soil water. The deficit during the summer months increases, causing a larger scarcity of soil water.
Ans E)
The vegetation of any area is heavily dependent on the soil water content available. We know that the soil water budget of Lucasville would have a large deficit if the predicted climate change occurs by 2060, which would lead to extensive stress on the vegetation for soil moisture content. The vegetation growth will be hampered and the vegetation health will be adversely affected.
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