The “Xochimilco model” for managing irregular settlements in conservation land in Mexico City

Wigle, Jill

doi:10.1016/j.cities.2010.04.003

Cited by 40 publications

(41 citation statements)

References 3 publications

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“…Por lo tanto, el fenómeno de hundimiento podría afectar al sistema de drenaje profundo, reduciendo su eficiencia hidráulica y dañando los túneles. Si bien el sistema de abastecimiento por medio de pozos en la CDMX no tiene los problemas inherentes a la importación de agua de otros estados, existen fuertes desigualdades y conflictos potenciales por transferencias de agua entre diferentes municipios y delegaciones (Wigle, 2010;Starkl et al, 2013;Banister y Widdifield, 2014). En general se puede decir que la calidad y cantidad del abastecimiento es fundamentalmente desigual, tendiendo RESULTADOS / DISCUSIÓN a decrecer hacia el oriente de la ciudad donde se ubican las delegaciones con mayor crecimiento y menor acceso a las fuentes externas de agua.…”

Section: Discussionunclassified

Diagnóstico y análisis de los factores que influyen en la vulnerabilidad de las fuentes de abastecimiento de agua potable a la Ciudad de México, México

Escolero

Kralisch

Martínez

et al. 2016

BSGM

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RESUMENFactores que influyen en las fuentes de abastecimiento de agua potable a la Ciudad de México 410 / Boletín de la Sociedad Geológica Mexicana / 2016 410 IntroducciónEl aumento de la densidad de población y la dinámica de la expansión urbana, con una marcada tendencia al crecimiento de las zonas urbanas y disminución de la población rural, hacen a las megaciudades focos de vulnerabilidad y de alta complejidad en la tarea de prestar los servicios urbanos básicos (Martínez et al., 2011;Kraas, 2008;Mitchell, 2006). El concepto de vulnerabilidad enfocado en los recursos hídricos ha sido aplicado desde diferentes perspectivas. Pinto et al. (2010) analizaron la vulnerabilidad de redes de tuberías de agua para identificar posibles escenarios de falla de la infraestructura; Sena et al. (2012) evaluaron la vulnerabilidad de ríos en la Cuenca del Amazonas ante eventos climáticos extremos, considerando aspectos geo-ecológicos y socio-ambientales; Wilhelmi y Morss (2013) evaluaron la vulnerabilidad ante precipitaciones extraordinarias en Fort Colins, Colorado, considerando los aspectos sociales; Pandey et al. (2010) analizaron la vulnerabilidad a sequías en la cuenca Sonar en India, considerando aspectos como la topografía, uso del suelo, demanda de agua, disponibilidad de agua y registros de precipitación; Hamouda et al. (2009) analizaron la vulnerabilidad en la cuenca del Río Nilo con base en 31 indicadores que consideran aspectos hidro-físi-cos y socio-económicos; Chia-Ling y Chung-Hsu (2010) analizaron la vulnerabilidad en una cuenca de Taiwán considerando factores meteorológicos y geográficos. Sin embargo, definir criterios para cuantificar la vulnerabilidad de las fuentes de abastecimiento de agua potable no es tarea sencilla debido a la falta de consenso en el verdadero significado del término, la complejidad de los sistemas analizados y al hecho de que la vulnerabilidad no es frecuentemente un fenómeno observable (Downing et al., 2001;Luers et al., 2003;Pritchett et al., 2000). La dificultad puede aumentar cuando se evalúa un fenómeno gradual y continuo tal como el impacto del cambio climático (Olmos, 2001) o la degradación de ecosistemas. A pesar de la complejidad, se han propuesto métodos de medición cuantitativos y semi-cuantitativos utilizando, en gran parte de los casos, un conjunto o combinación de indicadores. La utilidad de usar variables (o atributos) en las determinaciones de la vulnerabilidad radica en que simplifican y resumen la información relevante; por un lado, hacen visible o perceptible el fenómeno de interés, por otro cuantifican, miden y comunican información relevante. El desarrollo de variables e indicadores para uso en modelación y evaluación, permite llevar a cabo análisis de vulnerabilidad que integran perspectivas sociales y ambientales (Moss et al., 2002). En el presente trabajo se realiza un diagnóstico de las fuentes actuales de abastecimiento de agua potable a la Ciudad de México y se analizan los factores o atributos que influyen en su vulnerabilidad, considerando los factores amb...

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Section: Discussionunclassified

Diagnóstico y análisis de los factores que influyen en la vulnerabilidad de las fuentes de abastecimiento de agua potable a la Ciudad de México, México

Escolero

Kralisch

Martínez

et al. 2016

BSGM

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“…The increasing demand of water in quantity and quality for the population has led to disproportionate groundwater extraction and the importation of water from adjacent basins (Aguilar and Santos, 2011). This accelerated growth has exacerbated water management problems and promoted intubation of water courses and deforestation (Wigle, 2010), particularly in the CZ of the Magdalena-Eslava River sub-basin ( Figure 1). …”

Section: Mexico City's Historic Context and Its Relation With Surfacementioning

confidence: 99%

“…The Mexico City has an average altitude of 2,240 m and an area of 1,495 km 2 (Legorreta, 2009 (Wigle, 2010). The urban land uses within CZ mainly corresponds to 36 traditional towns that have existed in the Southwestern area of the city since ancient times (Aguilar, 2008).…”

Section: Mexico City At Presentmentioning

confidence: 99%

“…The best preserved zone of the Basin of Mexico is located in the southwest region and is represented in part by the Magdalena-Eslava River sub-basin (PUEC-UNAM-GDF, 2008). This sub-basin provides one percent of the surface water supply for human consumption in Mexico City; however, the conservation of water resources is compromised due to land-use change by illegal urbanization, agriculture, and the lack of suitable public policies in different periurban and socio-ecological contexts (Wigle, 2010;Aguilar, 2008). Given the importance of the last surface rivers and the provision of water to human needs, it should be a priority to develop baseline studies that take into account the watershed's ecological present state, scientific opinion and historical socioecological knowledge.…”

Section: Lek Is Defined As 'The Knowledge and Perceptions From A Partmentioning

confidence: 99%

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Local and Scientific Ecological Knowledge Potential as a Source of Information in a Periurban River, Mexico City, Mexico

Caro-Borrero¹

2017

Appl Ecol Env Res

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Caro-Borrero et al.: Local and scientific ecological knowledge potential as a source of information in a periurban river -541 - Abstract. Rivers in large cities face management problems that could be addressed through the integration of scientific and local ecological knowledge. The objective of this article is to emphasize the importance of different sources of knowledge in management alternatives for periurban watersheds. Specifically, this is done through (a) use of oral sources and archives to document the historic relationship between local residents and their natural resources, and (b) technical evaluation of the quantity and quality of water in the sub-basin through the time. We analyzed, through the 19 unstructured interviews, local residents' knowledge related to water quantity and quality. Additionally, we analyzed historical river flow data and water quality reports. The results show that the relationship between the local inhabitants and the river has been governed by public policies of both exploitation and conservation. For the last century, the river was used as the main source of electric power for local industry, the collapse of which, led to the decline of the importance of the river in the perception of the locals. Analysis of historical river flow data reveals a slight decrease in flow despite a trend of somewhat lower precipitation. This discrepancy may be due to hydraulic infrastructure construction and uncontrolled extraction. We conclude that the integration of two kinds of knowledge present a great opportunity to test a monitoring system that incorporates the environmental features that were more accurately described by the local residents: water quantity and forest land use.

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“…Due to its adjacency with the urban area, there is strong pressure within the site, so there is presence of irregular human settlements, the population living in this area is estimated to be 24,100 inhabitants and in the area of immediate influence 121,130 inhabitants [15] [16] [30]. Also, the lakeside system, declared it a protected natural area, it is located in the so-called soil conservation, it constitutes a remnant ecosystem of the Basin of Mexico formed by natural flooded plains and induced water bodies [16] [31]. It offers a wealth of flora and fauna, both aquatic and terrestrial 146 species of flora have been recorded, distributed in 101 genera and 45 families [15].…”

Section: Study Areamentioning

confidence: 99%

Does Money Fly? The Economic Value of Migratory Birdwatching in Xochimilco, Mexico

Revollo-Fernández¹

2015

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This paper estimates the economic value that national and international birdwatchers have to keep an urban wetland in this case, Xochimilco (Mexico), as a place of rest, food and/or shelter for migratory birds from North America. For this purpose, it is resorted to surveys and contingent valuation that estimates the willingness to pay (WTP) per year of these watchers. The best estimate indicates that national watchers are willing to pay approximately US $79 per year, while international, US $296. Using these estimates, it is calculated that the economic value of the bird migration environmental service for this urban wetland is located between US $2836 and US $3999 per hectare. This found value can work as an input for decision makers when faced with projects and/or policies that may face different objectives.

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The “Xochimilco model” for managing irregular settlements in conservation land in Mexico City

Cited by 40 publications

References 3 publications

Diagnóstico y análisis de los factores que influyen en la vulnerabilidad de las fuentes de abastecimiento de agua potable a la Ciudad de México, México

Diagnóstico y análisis de los factores que influyen en la vulnerabilidad de las fuentes de abastecimiento de agua potable a la Ciudad de México, México

Local and Scientific Ecological Knowledge Potential as a Source of Information in a Periurban River, Mexico City, Mexico

Does Money Fly? The Economic Value of Migratory Birdwatching in Xochimilco, Mexico

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