Talk:Water management in Greater Mexico City

Untitled
Some links don't work ([1], [8], [9], [10], [12], [18], for example) and a lot of the article refers to 1990's data which is kind of outdated. Mfiligra (talk) 06:53, 23 March 2018 (UTC)

I plan to add in the increasing urbanization section these paragraphs:

A total of 182 Federally Protected Natural Areas (NPA) have been declared throughout the country, to prevent urbanization; they cover 90,893,522 hectares,[1] additionally to state declared ones. Mexico City has a total of 23 NPAs and an Ecological Conservation Communitary Area, covering a total of 26,047 hectares,[2] and State of Mexico has a total of 88 NPAs, covering a total of 983,984 hectares.[3] Nevertheless, the Mexico City Metropolitan Area (MCMA) has grown constantly physically and demographically since 1930's. It spreads over a surface of 4,250 km2 and has a metropolitan population of approximately 21.2 million, concentrating 18% of the country's population.[4] It covers over 16 boroughs of Mexico City and 34 municipalities of State of Mexico.[4]

Urban growth reduces the permeability of the soil in groundwater recharge areas and increases the risk of flooding. Additionally, the daily mean provision (315 l/inhabitant/day in Mexico City and 135-195 l/inhabitant/day in State of Mexico) has to travel long distances through complex hydraulic systems.[5]

Also, to replace the paragraph of the flooding section:

From:

Flooding is common in Mexico City, swamping highways and sidewalks. In low-lying neighborhoods such as Iztapalapa, residents are so accustomed to seeing a fetid sea of sewage rise in the streets that they have built miniature dikes in front of their homes. Flooding is caused both by the sinking together and increased soil impermeability due to urbanization. If the Emisor Central should fail during the rainy season, modelling shows that a major flood would occur that would inundate the historic center, the Mexico City International Airport and the eastern boroughs of Mexico City.

To:

The Mexico Valley Basin has faced droughts, recurrent floods and other hydrological and climate-related hazards since pre-Hispanic and colonial times. Nevertheless, the hydrological cycle used to be in equilibrium due to the interaction of high elevation mixed forests, rivers, infiltration and evapo-transpiration with the system of lakes, rivers and seasonal streams, acting as a natural drainage for precipitation runoff. Because Mexico Valley is located in the basin floor, and many of the aquifer system streams and rivers have either dried up or been encased and converted into sewers, it now suffers from recurring floods. Moreover, the poor functioning of the sewage system results in chronic flooding in poor neighborhoods, resulting in populations affected by waterborne, diseases, and suspension of electricity and piped water supply. A total of 668 floods have been recorded throughout the 1980-2000 period, for which a total of 2,771,284 people have needed immediate assistance (including evacuation and displacement). Some of the municipalities that have registered the most floods have been Ecatepec (8.68%), Iztapalapa (7.93%) and Chalco (6.44%), although Tultitlan and Chimalhuacan have been the most affected in terms of people (36.09% and 32.7%, respectively). — Preceding unsigned comment added by Mfiligra (talk • contribs) 07:22, 1 April 2018 (UTC)

Mfiligra (talk) 00:50, 1 April 2018 (UTC) Mfiligra

Wiki Education Foundation-supported course assignment
This article is or was the subject of a Wiki Education Foundation-supported course assignment. Further details are available on the course page. Student editor(s): Mfiligra. Peer reviewers: Hhausman, Avatarfanx2.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 11:40, 18 January 2022 (UTC)