IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 5: Environmental Hydraulics and Hydrology : Factors affecting the increase of riparian woody vegetation and adapting management practices in gra...
Factors affecting the increase of riparian woody vegetation and adapting management practices in gravel-bed rivers in japan
Author : Shigeki Sanuki1, Tetsuya Ohishi2, Yoshinori Yajima1 and Jyunji Miwa1
Riparian woody vegetation have increased and grown thickly in gravel-bed rivers in Japan since the 1990s. In many of these rivers, management such as cutting and uprooting has been conducted, but it is likely to be insufficient to control the riparian woody vegetation. The purpose of this study was to examine which species have been expanding since 1990 and how effectively those species have been managed. We used the vegetation map of 117 rivers and investigated 13 river fields. Our findings indicate that willow, Robinia pseudoacacia L., and bamboo are the dominant riparian species and have been increasing in recent years. We found that uprooting was an effective means to prevent the expansion of woody vegetation if branches and rhizomes were removed at once, although only cutting was ineffective. We conclude that riparian vegetation management have to be conducted depending on the particular characteristics of each species
File Size : 413,582 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 5: Environmental Hydraulics and Hydrology
Date Published : 01/07/2011
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