explain the development of a braided stream channel.What is the difference between braided stream channel and anastomising stream channel?


Channel pattern mean the configuration of a river as it would appear from an airplane 3 patterns have been identified,one of which is the braided channel pattern.
                           A braided channel or stream is one characterized by a network of interconnected converging and diverging channels resembling the stands of a bread.The whole river system is generally shallow,so that intervening single bars and alluvial materials are exposed at low waters.It is mainly due to non-coherence of load,which leads to selective deposition and the alluvial material is exposed at low waters.
                          The development of braiding stream is a type of adjustment that a channel makes due to possession of debris load too large to be carried by a single channel.the development of this channel pattern requires steep slopes which contribute to sediment transport and bank erosion and are associated with heterogeneous coarse material.Coarser materials give increasing erosional attack on the bank.Large braided due to compulsion has characteristic wide channels,rapid bed shifting and changing river course.Example:-Kosi river.Turbulent fluctuations,subject to brief decrease in density causes deposition and concentration  of particles.A locus of the large deposited particles develop subsequently.

Even with fine suspended materials irregular deposition and bank erosion produce braided pattern.If the banks are erodible and channel width confined,the capacity of the reach to transport the sediment would be increased reducing the likelihood of deposition. Heterogeneity of the bed material contribute to braiding.
                  A braided stream divide into several channels which successively meet and divide while anstomising stream divide and rejoin but do not redivide like the braided pattern of stream. 

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