Sediment yield reduction in an agricultural watershed
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چکیده
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Sediment Yield From Small Semiarid Watersheds
Small watershed sediment yield data were evaluated for eight small watersheds ranging from 35.2 to 159.5 ha within the United States Department of Agriculture – Agricultural Research Service Walnut Gulch Experimental Watershed (WGEW) in southeastern Arizona, USA. Stock pond sediment accumulation measurements covering time periods from 30 to 47 years were combined with water level records and es...
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Data describing long-term sediment yield rates on semiarid rangeland watersheds are relatively rare. To augment existing data and gain a better understanding of the controlling variables, sediment yields from 8 subwatersheds within the US Department of Agriculture–Agricultural Research Service Walnut Gulch Experimental Watershed in southeastern Arizona were computed from stock pond sediment acc...
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* Corresponding author. E-mail addresses: [email protected] (J. Cho), sm 1537-5110/$ – see front matter Published by doi:10.1016/j.biosystemseng.2009.01.012 The dynamic agricultural non-point source assessment tool (DANSAT) is a distributedparameter, physically based, and continuous-simulation model for simulating spatial and temporal impacts of best management practices (BMPs) on hydrology and water...
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Fingerprint method is one of the new methods to determine the contribution of suspended sediment in the land units. In this method, a suitable composite (set) of diagnostic properties and a multivariate mixing model are employed to estimate the relative contribution of sediment sources to sediments transported to watershed outlet. This research carried out in the Tull Bane watershed with 3278.9...
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