当前,世界许多城市面临淡水资源不足的问题。东京也不例外。东京曾发生超量采用地下水,造成地面下沉而不得不严格限制采用地下水;也曾一度实行过限制供水的办法,给居民带来不便。开辟新水源又不是一件轻易的事。出路在哪里?他们认为必须强调“最大限度地有效利用有限的水源”。二十多年来,他们采取多种技术和组织的措施来缓和供需的矛盾,取得了较好的效果。 At present, many cities in the world are facing the problem of insufficient fresh water resources. Tokyo is no exception. The excessive use of groundwater in Tokyo has caused the ground to sink and it has had to severely restrict the use of groundwater. Once it has imposed restrictions on water supply, it has caused inconvenience to residents. Opening new water sources is not an easy task. Where are the outlets? They think it is necessary to emphasize “maximizing the effective use of limited water sources”. For more than two decades, they have adopted a variety of technical and organizational measures to ease the contradiction between supply and demand and achieved good results.