Abstract
The arid Southwest is associated with a sparse vegetal cover and highly erosive landscapes. The sparse vegetation is largely the result of low annual precipitation and the erosion is largely the result of high intensity short duration storms which, at Navajo Mine, most frequently occur in late summer. Storms of this type have high runoff and result in little soil moisture retention. Through special landscape shaping, personnel at Navajo Mine have used several means of harvesting water that are supporting greater plant densities than what is normal to an arid climate and controlling erosion in what were previously highly erosive areas. These features consist of both above and below ground structures that reduce runoff, retain moisture for longer times during drought periods and support vegetation that is suited for controlling erosion. This paper discusses the construction and effectiveness of water harvesting features at Navajo Mine.
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