01962naa a2200169 a 450000100080000000500110000800800410001902200140006010000190007424500690009326000090016252015450017165000150171665000090173165000100174077300420175012840361993-05-25       1976    bl uuuu     u00u1 u    #d  a0100-45571 aLIMA, W. de P.  aInterceptacao da chuva em povoamentos de Eucalipto e de pinheiro  c1976  aMeasurements of gross precipitation, throughfall, and stemflow in a 6-year old plantation of Eucalyptus saligna Smith, and also in a 6-year old plantation of Pinus caribaea Morelet var. caribaea, during two consecutive years, were used to investigate the relationships between precipitation, throughfall, stemflow and interception in these forest stands, both located on the campus of the Escola Superior de Agricultura "Luiz de Queiroz",in Piracicaba, Sao Paulo. The trees were planted 2m apart, in rows 3m apart, and their average height at the beginning of the study were 15,4m and 6m, for eucalypt and pine respectively. Gross precipitation was measured in a nearby open plot with one recording and one non-recording rain gages;throughfall was measured in each standby ramdomly locating twelve 127cm2 gages, which were relocated periodically during the study period; stemflow was measured by sealing narrow rubber collars to tree trunks, which caught downflowing water and conducted it to storage, plastic containers. Interception loss in the eucalypt stand amounted to 12,2 %, as an average value for the study period; for the pine stand interception loss was 6,6%. Stemflow was quantitatively higher in eucalypt (4,2%) than in pine (3,0%). Throughfall was higher in pine (90,4%) than in eucalypt (83,6%). Regression equations relating gross precipitation (PG) with throughfall (T), stemflow (S),and net precipitation (PN) for both eucalypt (e) and pine (pi) stands are as follows: Te=0.89(PG)-0.53; Tpi=0.938(PG)-0.57; Se=0.053(PG)-0.  aEucalyptus  arain  aChuva  tIPEF, Piracicabagn.13, p.75-90, 1976