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Keywords |
Bouteloua eriopoda Sporobolus flexuosus vegetation Yucca elata wind erosion plant soil correlation |
Caption |
Plant soil correlation study station number 5 on Jornada. The area is considered to be a third step in the depletive of a Yucca-black grama association. The vegetation consists of 55 percent Bouteloua eriopoda, 20 percent Gutierrezia sp., 15 percent Sporobolus flexuosus, and 5 percent Yucca elata. The average density is .25 and the forage acre factor is .11. The soil at this station is sandy, with little development except the translocation of some carbonates. A layer of very hard gypsum caliche, several inches thick occurs at the depth of about 4 feet. The slope gradient is 1.5 percent; micro-relief expressed by dunelets rarely exceeding 6 inches in height and removal to a depth of 4 inches. Active wind erosion predominates, ranging from slight to moderate. Original photo number 312.
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