Gerenciamento da demanda de água em áreas verdes públicas: o caso de Campina Grande.

Abstract

With the population growth and urban development, the consumption of water has increased and demand for water to meet human consumption, agricultura! and industrial, tends to continue increasing throughout the world. The presence of green áreas in cities is considered indicator of quality of life and local wooded usually presents more pleasant to the senses humans. Moreover the public green spaces are often built without planning, using species of plants unfít for the local reality, creating diffículties of adjustment, since such species require a greater amount of water, increasing the demand for irrigation and high consumption of water resources. In this context, this research presents an assessment of the demand for water in public green áreas of the city of Campina Grande - PB, where the projects are studied landscape of fífty existing public green áreas and designed new models of sustainable landscaping projects (PPS) based on demand water evaluated. The water demand is estimated from a model of soil water balance, which is used to simulate the behavior of each of the public green áreas over 30 years. In the event of implementation of PPS are simulated figures for demand, which, compared with the values obtained for the green áreas today, show a saving of water in the order of 50%. It is concluded that the implementation of projects