Sanbanze Tidal Flat Restoration Plan – March 2007 The Sanbanze Tidal Flat in Chiba Prefecture is a vital ecosystem located at the innermost part of Tokyo Bay, covering an area of approximately 1,800 hectares. However, due to past land reclamation and water pollution, the decline in biodiversity and the depletion of fishery resources had become severe. In response, Chiba Prefecture formulated the “Sanbanze Restoration Plan (Basic Plan)” in March 2007. This plan sets the following five objectives: 1. Restoration of Biodiversity: Regenerate the ecosystems of the tidal flats and shallow waters, and create an environment where diverse organisms can thrive. 2. Restoration of Land-Sea Continuity: Ensure the natural continuity between land and sea through the renovation of seawalls and the restoration of natural coastlines. 3. Ensuring Environmental Sustainability and Resilience: To achieve a sustainable environment by improving water quality and the seabed environment. 4. Restoring Fishing Ground Productivity: To improve fishing ground productivity by promoting environmental improvements and resource management. 5. Ensuring Interaction Between People and Nature: To increase opportunities for local residents to interact with nature through environmental education and the promotion of ecotourism. Forty-four specific projects are planned, including the creation of tidal flat environments, ecosystem surveys, fishery improvement projects, revetment renovations, and the implementation of environmental education programs. This restoration plan is being advanced through collaboration among diverse stakeholders, including local residents, fishermen, and environmental groups, and is attracting attention as a model case for sustainable environmental conservation and regional revitalization.
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