Cutting through the countryside of southern New Zealand:
It has a channel that consists of a network of small channels separated by small and often temporary islands called braid bars or, in British usage, aits or eyots. Braided streams occur in rivers with high slope and/or large sediment load. Braided channels are also typical of environments that dramatically decrease channel depth, and consequently channel velocity, such as river deltas, alluvial fans and peneplains. Braided rivers, as distinct from meandering rivers, occur when a threshold level of sediment load or slope is reached.
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