权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Environmental Balance of Water System in Megalopolis -- In Cases of Beijing and Osaka Bay Areas--

特大城市水系环境平衡——以北京、大阪湾区为例——

基本信息

批准号：
07044147
负责人：
MURAOKA Kohji
金额：
$ 4.42万
依托单位：
Osaka University
依托单位国家：
日本
项目类别：
Grant-in-Aid for international Scientific Research
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1997
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07044147/
关键词：
Megalopolis Water environment Town water and sewer system Flood control Groundwater Water transport channel Water storage facilities Water reuse 地下水位

项目摘要

Among the problems in megalopolis there are three ones related to water : (1) flood control, (2) water use, (3) water environment. The target model cities in this study were set as Beijing Urban Area and Osaka Coastal Urban Zone, and we found some common problems as well as unique ones.With respect to (1), there is almost no problem in the central area of Beijing because the precipitation is small, while many serategies are essential to avoid the inundation from the heavy storm in business and residential zone in Osaka areas. The Neya River Basin, the low land urbanized rapidly, is specially demanded to build many flood control facilities such as various typed water storage reservoir or tank. In future vision we have to reuse such strong water as a secondary usage of water in the city.In Beijing Urban Area, they are developing large amount of town water and industry water. It is a favorable treatment to keep and recover the groundwater environment, but they need a new sewer systems and water treatment plants. We are afraid of the unbalance of demand between water use and water environment.It is said in large cities in developed countries such as Osaka Urban Area that the population decrease, the high age society, and the decrease of birth rate will appear in the middle of the 21Century. For the creation of sound hydrological process in the urban area, we have to take those future problems in mind.

在大都市面临的问题中，有三个与水有关的问题：（1）防洪问题;（2）用水问题;（3）水环境问题。本研究以北京市区和大坂沿岸城市带为研究对象，发现了一些共同的问题和独特的问题：（1）北京市中心区由于降水量小，几乎没有问题，而大坂市商业区和居民区则需要采取许多预防暴雨淹没的措施。内亚河流域是城市化进程较快的低地，特别需要修建各种类型的水库、蓄水池等防洪设施。在未来的设想中，我们必须将这些高浓度的水作为城市水的二次利用，在北京市区，他们正在开发大量的城镇水和工业水。这是一个有利的处理，以保持和恢复地下水环境，但他们需要一个新的下水道系统和水处理厂。我们担心用水和水环境之间的需求不平衡。在大坂市区等发达国家的大城市，据说人口减少，老龄化社会和出生率下降将在21世纪中叶出现。为了在城市地区建立健全的水文过程，我们必须考虑到这些未来的问题。