La Organización de las Naciones Unidas para la Alimentación y la Agricultura declara el derecho a la alimentación en el marco de la seguridad alimentaria, en el cual la agrodiversidad es componente fundamental porque se relaciona con procesos de conservación in situ, lo que implica sostener los modos de vida de los custodios de la agrodiversidad. El objetivo del estudio es analizar cómo el cultivo de la milpa mazahua contribuye a la seguridad alimentaria en San Pedro El Alto, Temascalcingo, México. El trabajo etnográfico se efectuó durante el ٢٠١٣ y el ٢٠١٤, mediante entrevistas a diez campesinos y sus familias, se observó el cultivo de la milpa y se registraron los productos de ésta y su uso y manejo a lo largo del ciclo de cultivo de la tierra. Los habitantes conservan el cultivo de la milpa para disponer de alimentos durante todo el año, como parte de su identidad como campesinos y campesinas y para mantener sus raíces culturales. Por lo anterior, la milpa puede considerarse como un emblema de territorialidad e identidad comunitaria y de economía para el pueblo de San Pedro El Alto
Evolución de los conjuntos urbanos y su influencia en el crecimiento poblacional ... / M.L. GARCÍA-GONZÁLEZ et al. abril/junio 2017 217 Resumen Este trabajo tiene el propósito de analizar la evolución e influencia de la producción habitacional del sector privado en la expansión de la urbanización y crecimiento de la población en Calimaya, Estado de México, de 1990 a 2015, mediante el uso de técnicas cualitativas y cuantitativas, tomando como base información de la Secretaría de Desarrollo Urbano estatal y municipal, INEGI y los SIG. Los datos estadísticos, cartográficos, la observación y análisis del proceso de producción habitacional a través de conjuntos urbanos en Calimaya muestran, por un lado, su tendencia a extenderse sin control en las localidades de Calimaya de Díaz González, San Andrés Ocotlán y la Concepción Coatipac, sobre las áreas de vocación agrícola que las circundan, conformando un espacio periurbano residencial desordenado y disperso, y por otro, el crecimiento acelerado de la población y sus posibles impactos sociales y ambientales derivados de estos.Palabras clave: Conjuntos urbanos, crecimiento poblacional y espacios periurbanos. Abstract Evolution of urban complexes and their influence on population growth and development of the peri-urban spaces in Calimaya, State of Mexico, from 1990 to 2015This paper aims to show the evolution and influence of housing production in the private sector in expanding urbanization and population growth in Calimaya, State of Mexico, form 1990 to 2015, using qualitative and quantitative techniques, taking basis information from the Secretariat of state and Municipal Urban Development, INEGI and GIS. Statistical, cartographic data, observation and analysis of the process of housing production through urban complexes in Calimaya show on the hand its tendency to spread out of control in the towns of Calimaya Diaz Gonzalez, San Andres Ocotlan and the Concepción Coatipac, on the areas suitable for agriculture that surround forming a disorderly and scattered suburban residential space, and secondly, the rapid population growth and its potential social and environmental impacts of these.Kew words: Urban complexes, population growth and peri-urban space.
Floods are a problem that is aggravated by the levels of existing social vulnerability, by creating an environment of risk when they affect the human being, by causing loss of life or damage to the built and natural environment to which man has access and from which he obtains some benefit. To determine social vulnerability, we start from the characteristics and living conditions of the people, estimated in the Marginalization Index by electoral section 2010, and their proximity to the development of the floods registered in the flooding polygons of the Water Commission of the State of Mexico from 2000-2010; by making use of statistical tools and geographic information systems, social vulnerability due to floods can be more accurately determined; For the development of this research, the State of Mexico is taken as a case study, in which the result shows that 42.96% of the electoral sections were affected by floods, and 47.36% of the population for the year 2010. The general conclusion of this work shows that, the simplification of the analysis of vulnerability by product of the overlap of flood zones and the degree of marginalization, allow to estimate accurately and with high reliability the most vulnerable areas, which would be given priority in the taking of actions dedicated to the reduction and prevention of the existing and future situation of vulnerability.
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