Tidal land development runs into the hundreds, thousands, even tens of thousands of hectares. For example, the already completed Changpin Industrial Park covers 6,000 hectares, with the landfill pushing hundreds of meters into the sea. "We are already past the point of developing tidal land to the point of taking land from the ocean," says a marine engineering scholar. The area that must be filled truly challenges the imagination.
到了今天，海埔地開發由百、千到上萬公頃，以已經開發的彰濱工業區為例，開發面積一下喊到六千公頃，土方必須填到外海幾百公尺，「已不是開發海埔地，而是向海搶地」，一位海洋工程學者說，須要填土的面積超乎想像。