Over the years following retrocession, the government implemented a series of land redistribution policies: the 37.5 % rent limitation, land to the tiller, and equal land rights. After the economy began to take off, land use and development escalated, dividing land into smaller and more complicated lots. The maps kept in each locality were constantly being called upon to decide cases.
一連串土地改革之後，經濟開始起飛，土地利用開發遽增，分割也越趨頻繁，於是各地區所存的地籍副圖一再被請出「斷案」，然而滄海桑田，也益發顯出當年舊圖已不敷使用。