More concretely, the method is to classify the land in the demonstration zones into four categories according to their elevation. From highest to lowest, they are: Living zones, flood buffer zones, variable containment zones, and regularly submerged zones.
具體作法是將示範區的土地依地勢高低分為 4 類，依次為「陸域生活區」、「緩衝性潛淹區」、「變動性蓄淹區」，以及「經常性浸淹區」。