Climate change in Tacaimbó-PE, Brazil

HELANO nobre Vilar


The objective of this study was to evaluate the climatic changes in the municipality of Tacaimbó-PE and the water conditions through the future climatic panorama of precipitation and air temperature in order to show the effects of global warming on the climatic water balance. The data were analyzed for rainfall scenarios and average monthly air temperature with a reduction of 10% and 1ºC (optimistic scenario = B2) and 20% and 4ºC (pessimistic scenario = A2), according to the methodology of the Fourth Assessment Report of the Intergovernmental Panel of Climate Change (IPCC AR4). It was applied the Thornthwaite and Mather (1948, 1955) method for the water balance. The rainfall indexes will not be enough for several types of crops, so it is not feasible for this municipality to develop dryland farming practices, in case these scenarios come up, mainly analyzing the slope of the pessimistic scenario. In the face of this pessimistic scenario, it is critical the condition for storing rainwater for human and animal consumption, being necessary a future planning for tank constructions and similar constructions is required for water storage and impact minimization.


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