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ABSTRACT<br />
This work aims <strong>de</strong>veloping efficient and low cost alternative methodologies in forest<br />
environments providing superior operational facilities in relation to the traditional<br />
ways for measuring water infiltration in soil, superficial draining besi<strong>de</strong>s support in<br />
<strong>de</strong>termining others hydrological cycle parameters. The study was conducted in a city<br />
called Tijucas do Sul – Paraná State, between 800m and 1350m above sea level<br />
with local climate conditions according to Köppen classification Cfb. Two<br />
experiments were done: the first one aimed the usage and <strong>de</strong>velopment of<br />
methodology for <strong>de</strong>termining superficial draining, infiltration and direct vegetal<br />
intercepting through tables or small gutters ma<strong>de</strong> of galvanized sheet with the<br />
following measures: 0,98m length, 0,27m width and 0,11m height. It was<br />
implemented five treatments with four repetitions un<strong>de</strong>r two different forest conditions<br />
– native forest and Pinus spp plantation, two different spaces – soil and <strong>de</strong>clivity<br />
besi<strong>de</strong>s treatment in area without any forest coverage. The second experiment aimed<br />
to compare the usage of a pool of water infiltration meter in small size with the double<br />
rectangular shape or the double rectangle to the standard method – infiltration meter<br />
in double cylin<strong>de</strong>r or double ring shape. It was implemented three treatments in<br />
different forest conditions: native forest, Pinus spp plantation and ornamental woods<br />
in an environmental recovering area. The pluviometer usage in each of the<br />
treatments was as efficient as the Automatic Data Collector Platform in checking the<br />
rainwater levels in the region showing excellent co relations. Infiltration studies co<br />
related to precipitation showed different characteristics in the three groups of rain.<br />
The comparison among the superficial draining averages (Tukey 5%) proved some<br />
differences in forest coverage protection and in the sensibility of the methodology<br />
adopted. The infiltration test with a pool of water infiltration meter ma<strong>de</strong> some specific<br />
curve adjustments of infiltration and efficiency comparison in used equipments. The<br />
statistical analysis of the results allowed to conclu<strong>de</strong> the first experiment presented<br />
consistent, sensitive and reliable results in <strong>de</strong>termining: the water infiltration in soil,<br />
the artificial water draining and internal/direct precipitation. Those were evi<strong>de</strong>nces of<br />
the method efficiency for the study conditions as well as for the low cost of<br />
implementation and its operational advantage. The achieved results in the second<br />
experiment pointed to operational advantages in using double rectangular infiltration<br />
meter when comparing to the standard method – infiltration meter in double ring<br />
cylin<strong>de</strong>r.<br />
Key Words: infiltration, superficial draining, interception, collectors, infiltration<br />
meters, pluvial.<br />
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