| Summary: | ABSTRACT
Rainfall interception losses were monitored for twelve months and related to vegetation and rainfall characteristics at the Wanarisel Sangai on the upper reaches of the Mentaya river, Central Kalimantan. The rainfall interception losses were quantified, based on the records of 55 selected rainfall events in the unlogged forest and of 95 rainfall events in the logged-over area. In the unlogged forest, the total amount of rainfall interception loss was 251 mm or about 11% of total gross rainfall. In the logged forest, the total rainfall interception loss was 219 mm, or 6% of gross rainfall. Interception loss was also simulated by the Gash's original and revised models. Both models adequately predicted total interception loss over a long period, resulting in estimates of the interception loss that deviated by 6 to 14% of the measured values, for both the unlogged and logged plots.
Kata Kunci.: measurement - modelling rainfall - forest - interception loss - Central Kalimantan
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