Articulaciones entre artefacto urbano y ecosistemas naturales : exploraciones proyectuales en los ecotonos urbanos de Mérida, Venezuela
The way in which the ongoing artifact process develops simplifies the natural environment producing regression for our planet biodiversity. Urban projects thought about under these paradigms do not help build a sustainable city. Taking into account the recent appreciation of natural ecosystems in ci...
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| Tipo de recurso: | tesis doctoral |
| Estado: | Versión publicada |
| Fecha de publicación: | 2010 |
| País: | España |
| Institución: | CBUC, CESCA |
| Repositorio: | TDR. Tesis Doctorales en Red |
| OAI Identifier: | oai:www.tdx.cat:10803/399919 |
| Acceso en línea: | http://hdl.handle.net/10803/399919 https://dx.doi.org/10.5821/dissertation-2117-100944 |
| Access Level: | acceso abierto |
| Palabra clave: | Àrees temàtiques de la UPC::Urbanisme 71 |
| Sumario: | The way in which the ongoing artifact process develops simplifies the natural environment producing regression for our planet biodiversity. Urban projects thought about under these paradigms do not help build a sustainable city. Taking into account the recent appreciation of natural ecosystems in city environment, its regulating function as well as its growing importance as opportunity spaces for projects, it is proposed the concept of urban ecotones -interface areas in which diverse natural ecosystems meet the city- as possible articulators of the urban system complexity. The urban ecotones allow to bring together urban planning with theories of approaching nature as spaces for integration, coexistence and dialogue. On the one hand, and with similar processes, as coevolution of both natural and artificial environment fight one another, it is necessary to know the way in which territories, ecosystems and artifacts are colonized. The cumulative evolution of infrastructures and the succession of natural ecosystems propose another way of understanding the process of coevolution in time and space through the appreciation of networks. On the other hand, nature's intermediary ability reassigns the role of open spaces as expression of coexistence between natural interfaces and urbanized space. Between these two extremes, from biodiversity to artificiality, the urban ecotones are an opportunity to harmonize both processes: the succession and cumulative evolution of ecosystems with infrastructures. Latin-American cities in particular show unrivalled wealth in relation to the ecosystems in which they lie as well as an urban dysfunction and an excessive expansion upon the territory. The Mérida valley, Venezuela, an enclave among various Andean tropical ecosystems, where natural landscapes are still very little artificialized, allows proving how the anticipation in the cityscape growth may outline articulation projects between the urban artifact and natural ecosystems. The case study shows an equality situation as well as a healthy tension between a still unspoiled, not-with- excessive-fragmentations natural environment and a linear city with middle development which is the consequence of a slow and peculiar evolution process. Mérida shows the instrumental aspects across the exploration of urban ecotones in the tropical Andes: the morphological study of boundaries and limits and the dynamic characteristics of borders allow suggesting different types of urban ecotones in projectual key. This thesis intends to reflect on the natural potential -inside and around cities- ignored in so many Latin-American cities. The reflection on the distorted outskirts project possibilities seeks to favour natural values for urban planning and to revalue the outskirts as a privileged position for the city project. This doctoral thesis concludes that the urban ecotones facilitate the creation of new sustainable structures for chaotic cities and new chances for the biosphere and our cities in order to integrate ecology and urbanism. Therefore the urban ecotones become a new opportunity to limit, regulate as well as enrich the project to increase the urban artifact complexity. The urban ecotones express the coevolutive convergence and have the possibility to become key instruments for integration projects between urban artifact and natural ecosystems. |
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