Evaluation of the biophysical environment from its complex functionality for sustainable urban planning

Abstract

An approach was developed for evaluating environmental conditions in relation to anthropogenic activities, considering the biophysical environment from its complex functionality for urban planning. This approach was applied for the realization of the Local Urban Development Plan (PDUL) of Barinas city in Venezuela. The functional approach assumes that the biophysical environment is not an inert, but rather a dynamic system, which fulfills functionalities in different perspectives: as a main source of natural resources, as physical support for productive activities, and as waste storage space, which together impact the urban development of the current and future city. When the operating logic of the biophysical system is exceeded due to a socio-economic demand, it produces environmental problems like: water, soil and air pollution, loss of biodiversity, erosion and others can be generated, hindering the land development process. By respecting the functioning of the biophysical environment, its carrying capacity, it will be possible to guarantee the quality of life for the population, and transition towards sustainability. The paper describes how to evaluate each functionality in order to identify problems and to guide urban planning strategies and actions.