河道掘削における湿地環境の創出·復元の取り組みとその効果

抄録

Along the upper and middle reaches of the Edo River, flood control works have been implemented to increase the flood carrying capacity through river channel excavation and to strengthen flood protection diking system utilizing the excavated materials for enhancing the flood protection reliability.

Furthermore, setting up the restoration of wetland environment as an environmental improvement goal, conservation and creation measures have been progressed for bio-diversity and habitats of riparian lives.

This paper reports the environmental improvement goal set up, the designing of environmental-friendly channel shape, and the effects on restoring and creating the wetland environment through river channel excavation based on monitoring survey results of the situations after the construction works.