Section 1
Chapter 747

Simulation of arid rangeland watershed hydrology with the USDAHL-74 model

Hanson, C.L.

Transactions of the ASAE 22(2): 304-309


ISSN/ISBN: 0001-2351
Accession: 000746947

The USDAHL-74 revised model of watershed hydrology was evaluated on an 83-ha arid rangeland watershed in SW Idaho dominated by Artemesia tridentata and used almost exclusively for livestock grazing, mainly in spring. The model simulated soil water adequately, except during periods in late summer and autumn. Simulated run off indicated that the model responded primarily to precipitation intensity, while measured runoff responded primarily to precipitation amount.

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