作者
A David Knighton, Gerald C Nanson
发表日期
1993/11
期刊
Earth Surface Processes and Landforms
卷号
18
期号
7
页码范围
613-625
出版商
John Wiley & Sons, Ltd
简介
Anastomosing rivers are characterized by multiple channels separated by islands excised from the floodplain. Their status relative to the continuum concept of channel pattern is assessed with channel pattern defined in terms of three variables—flow strength, bank erodibility and relative sediment supply. Using an ordinal scaling (L(ow)–M(oderate)–H(igh)), the traditional forms of straight, meandering and braided have respective representations of (L,L,L), (M,L/M,L/M) and (H,H,M/H) in terms of those variables. The anastomosing pattern is on average represented by (L,L,M/H) but not so definitively as other forms. Specification of the third element (sediment supply) is particularly hampered by the paucity of data but aggradation, a characteristic of many anastomosing rivers, can be thought of as symptomatic of a moderately high rate of supply relative to the ability for onward transport. A sufficiently high rate of supply …
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学术搜索中的文章
A David Knighton, GC Nanson - Earth Surface Processes and Landforms, 1993