México, territorio que goza de extensión y diversidad, es escenario de múltiples bellezas naturales asociadas a cuerpos de agua cuya magnitud los convierten en atractivos naturales. En contraparte, hoy en día algunos de estos cuerpos de agua presentan tal deterioro ambiental que resultan ser no solo un impacto negativo para el ecosistema natural sino de alto riesgo para el contexto urbano inmediato. El río Santiago y sus expresiones fluviales, después de ser considerado como el Niágara Mexicano, se ha convertido en las últimas décadas en un lugar irrespirable, tras recibir los residuos industriales y urbanos de la zona. Esta condición ha sido determinante para las poblaciones, las cuales adolecen de la problemática de la contaminación con graves efectos en la salud. El estudio presenta una serie de posibilidades para la recuperación del paisaje fluvial como una estrategia para la mejora de la sanidad ambiental utilizando como herramienta de análisis la perspectiva urbana

Alejandro Zohn's work in Guadalajara (1930Guadalajara ( -2000 is analysed in order to recognize its contributions, influences and value in spatial, functional, aesthetic and spiritual experience of the users. The main features of his work are based on arithmetic visions and analytical perspective and is focused on the research for compositions through the use of geometric volumes, usually concrete. Generated through mathematics in a process linked to fractal growth, an issue that from pragmatism and composition become strong characteristics associated with biophilia, aesthetics and well-being, turning the envelope into a complex map of visual codes. Hence starts the extensive use of the hyperbolic paraboloid, following the path of Eduardo Torroja and Félix Candela, giving it a masterful expressive depth using contrasts along with traditional materials and natural elements. It is this duality that brings the spatial aesthetic closer to the user's appreciation by combining forms that refer us to the anthropic; intellectual and ethereal, with natural elements that link us to a more instinctive and biological level. Systematic observation methods and user surveys allows us to obtain conclusions of the analytical exercise from a perspective of perception of the public space, linked to a contrast of results of homologous exercises in the area of neurourbanism and with a deductive logical method that allows to obtain particular conclusions where links and logics are established associated with architectural volumetric.

The history of Valencia's Huerta Sur through a period of 91 years and the specific area of Castellar, Valencia, valued for its low physical alteration over time, composes this analysis. The focus is on understanding the composition and, therefore, fractioning of the structure of Valencia's Huerta Sur. This study presents an understanding of the geometry of the plots, from historicism related to hereditary processes, and reflects on sustainable management and economic viability of agricultural heritage. The historical evolution of the transitions and the legislation governing the land introduces criticism of the operation of Valencia's Huerta and its fragmented functionality. Using illustrative maps, the proportions and portions produced by centuries of division that modified the structure of Valencia's Huerta configuration are explored. The presentation of new forms of organization of the Huerta is a necessary reaction as a response to the conditions of abandonment and disuse of the land, which in turn conveys the current impossibility of self-management.

Alejandro Zohn (1930-2000 was one of the most important architects in the second half of 20th century in Guadalajara, Jalisco. Their work in public space is linked to the most important spaces in the city, although the studies about him have left most of his process and architectural and spatial comprehension. With well-known teachers and references like Mathias Goeritz, Félix Candela or Eduardo Torroja, Alejandro developed a design process based on arithmetic compositions using geometric pure volumes, in most of the cases in concrete. Alejandro Zohn's commitment with mathematical and geometric purity relates him with nature and its rules, also depending on mathematics and fractal growth, what leads his designs to a good public appreciation although the state of conservation is quite disturbing in some of the cases due to administration neglect.In the case of the works for public spaces studied in this paper, Alejandro Zohn generated a fractal growth in order to balance the volumes, weights and dimensions, with the use of hyperbolic paraboloid to lead the structural stress of the demanding forms to the floor with the highest lightness possibleIn order to achieve a full vision of this growth and balance, this work focuses in showing the volumes used in the composition transforming them from the two usual dimension of floor and elevation to three-dimensional volumes, showing the conceptual complexity of this two apparently simple shapes.

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