STREAM MORPHOLOGIC IMPACT OF AND RECOVERY FROM MAJOR FLOODING IN NORTH-CENTRAL NEVADA

作者: Tom Myers , Sherman Swanson

DOI: 10.1080/02723646.1996.10642594

关键词:

摘要: Major floods cause channel changes ranging from complete cross-sectional change to small fluctuations in pool area. We used stream cross-section data on 30 heavily grazed rangeland streams north-central Nevada assess over a climatically variable 14-year period. There was an insufficient range ungulate damage consider differences caused by grazing. Flooding with return intervals exceeding 50 years major approximately 25% of the surveyed regardless initial type. One-quarter changed continued experience during six- eight-year period low-to-normal flows. On these streams, upper banks either receded expose new, lower floodplain or flattened less vertical slope. that did not type, flooding substantially reduced area, which recover succeeding period, presumably because energy form pools. High flows flushed fine sediment th...

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