Land ownership of floodplain is usually the major problem for upstream channel regulation such that design channel width is often forced to fit the current condition.

• 上游河道整治时，其治理宽度常涉及到沿岸土地取得的问题，使治理工作有时变得困难，最后只好依现况宽度或将宽度窄缩，以迁就现实。