The long-term pumping of water and consequent land subsidence and infusion of seawater salinated the soil, and since the year 2000 farmers and fish farmers have been leaving one after another. The abandoned fishponds and fields have attracted large numbers of water birds.
民國 90 年代以後，因長期超抽地下水導致地層下陷、海水入侵、土壤鹽化，養殖戶和農民紛紛棄守，荒廢的漁塭和耕地反而吸引大批水鳥駐足。