Abstract
Vegetation in rivers is a key to improve a favorable river environments to provide amenity space or space for various wild lives, but it brings an undesirable effect during flood. Recently, hydraulics of flow with vegetation is studied from the above-mentioned view point, but there is few informations about how the vegetation zones grow in rivers naturally, how they can be controlled artificially, how they are idealized in fundamental analyses or experiments in laboratories. In order to accumulate informations to answer the above questions, field survey of species and growing patterns of plants related to flood-plain morphology is conducted in the river Tedori. The survey data are inspected to clarify the relation among vegetation characteristics, river morphological characteristics and the time series of river discharge.
