Its multi-functionality in agriculture is comparable with the MIDORI (Eco-residential Houses of Natural Environment) ecological agricultural model of Japan that is designed to develop green homeland in a harmonious ecological relationship with land and water resources. This approach offers a sound ecological prospect of a viable productive agriculture [34]. Thus, the three cities could be separated by “greenbelts” with an ecologically agricultural emphasis and “ecological green hearts” e.g. forest parks, wetland parks, botanical gardens, and scenic spots. In short, the integration of landscape ecology approaches, based on sustainability science, provides an effective way for achieving urban sustainability.