Monitoramento da precipitação efetiva em diferentes povoamentos florestais: estudo de caso na Floresta Nacional de Ipanema, Iperó-SP

The water, renewable resource, but finite, has be en studied in many areas of knowledge, especially w ith regard to their availability on the surface. Other studies, however, are developed to identify how and how much is their participation in various stages of the hydrol ogy cycle. Researchs that relates rain with the rai n forest systems are examples of this. This paper aims to present the im portance of determining the effective rainfall, and to study the influence of forest vegetation in the hydrological cycle in watersheds, as well as the present study t hat is being developed in the Floresta Nacional de Ipanema, in I peró - SP. These studies collect information on und erstanding the distribution of water on vegetation in order to gen erate forms of management are technically feasible, facilitating the important decisions for the integrated use of water shed. Palavras-chave : Eucalyptus sp., Pinus sp., throughfall, stem flow.