Agricultura urbana e recursos hídricos: um estudo na microbacia do rio Tambay/Bayeux-PB.

Abstract

Throughout history man has been transforming the world. In this new century, mankind faces a rapid depletion of natural resources and the unknown of what to do with the waste generated by a population inconsequential. It is known that there are several discussions about the need to reconcile development with environmental preservation, and an important factor analysis to agriculture, when it comes to food safety. In the face of several changes regarding the food shortage, it is obvious the need to find alternatives so that they do not miss the man. Thus, there is an option to urban agriculture, which grows every day, where its importance covers the areas social, economic and environmental. However, it is known that the practice of agriculture is undoubtedly one of the most contaminants, when practiced in an unsustainable way, such as the use of pesticides. On one hand these chemicals potentiate the production, the other, have complex consequences. Without doubt one of the greatest difficulties of urban agricultural practices, using water as a source of urban rivers are the changes in the patterns of the same qualities. In this aim, the objective of the research is to investigate the development of urban agriculture in the river basin Tambay located in the city of Bayeux, Paraíba State. To achieve the study was an exploratory type research literature, documentary research, survey statistics, the application of questionnaires and interviews with the resident population. For the assessment of water quality were established five sampling points of water sample along the river Tambay and the results were compared with the maximum values determined by resolution of the National Environment Council (CONAMA) No. 357/2005, to Freshwater, Class 2 (official classification of the river). Given the analysis, one can see that the river has Tambay parameters framed and not covered by the aforesaid resolution, because it is an area of agricultural practice, it is necessary that the standards are framed, which was not seen when it comes of fecal coliform, aluminum and lead, substances prohibited for any kind of cultivation. Thus, it appears that the river water is unfit for cultivation.