自然共生型流域圏環境アセスメント手法に関する基礎的研究

抄録

This study aims to establish the technical framework of strategic environmental assessment considering eco-compatible management of river-basin. Environmental management of complex of multiple river-basins possessing a common bay is just a integrated assessment which requires a strategy to aim sustainability, and in this paper we have proposed a strategic framework eco-compatible management with concepts of “ecosystem service” and “categorized landscapes”.

The assessment methodology is composed of the following three: (1) Landscape categorization of river-basin, (2) Analysis of network of various fluxes (water, sediment and bioelements), (3) Mechanism of ecosystem and its function evaluated by the residua of flux, (4) Quantification of ecosystem service, and (5) Integrated procedure of strategic assessment of eco-compatible river basin aiming sustainability.