Wang Chung-ho says that currently Taiwan uses a yearly average of 5.5 billion tons of groundwater, with 90 % being used in the southern and central parts of the country. Rainfall in the south has always been very uneven; add to this the change in global climate patterns, and rain during the dry season in the future is likely to steadily diminish and increase dependence on groundwater.
汪中和分析，目前台灣每年地下水平均使用量約 55 億噸，中南部就用掉了 9 成；南部地區本來降雨就極不平均，加上全球氣候變遷，旱季降雨未來會愈來愈少，將更加依賴地下水。