Water Management for a Megacity: Mexico City Metropolitan Area
Water Management for a Megacity: Mexico City Metropolitan Area
复制标题
特大城市的水管理：墨西哥城大都市区
作者：
C. Tortajada;Enrique Castelán
摘要本文概述了墨西哥都市圈（MCMA）的现状。分析表明，迫切需要从根本上改善目前的供水和废水管理做法，以实现可持续发展。MCMA是世界上发展最快的城市中心之一，人口约为2100万，移民率非常高，非法定居点众多。为了满足日益增长的用水需求，历届政府几乎只关注供水管理和工程解决方案，这导致了数亿美元的投资和跨流域调水的重大基础设施项目的建设。与水管理有关的环境、经济和社会政策大多不充分，这导致生活在世界上最大的城市群之一的人口的环境、健康和社会经济条件日益恶化。然而，令人惊讶的是，迄今尚未制定出关于需求管理、再利用、保护和改进水管理做法的长期战略。
Abstract The paper presents an overview of the present situation of the Mexico City Metropolitan Area (MCMA). The analysis indicates an urgent need to radically improve the current water supply and wastewater management practices, to become sustainable. The MCMA is one of the most rapidly growing urban centers of the world, with a population of about 21 million people, a very high rate of immigration and numerous illegal settlements. In order to meet the increasing water demand, successive governments have focused almost exclusively on supply management and engineering solutions, which have resulted in investments of hundreds of millions of USD and the construction of major infrastructure projects for interbasin water transfer. Environmental, economic and social policies associated with water management are mostly inadequate and insufficient, which is resulting in increasing deterioration in the environment, health and socioeconomic conditions of a population living in one of the largest urban agglo-merations of the world. Surprisingly, however, no long-term strategies on demand-management, reuse, conservation, and improved water-management practices have been developed so far.