POLA INTERSEPSI TANAMAN KOPI SKALA LABORATORIUM MENGGUNAKAN SIMULATOR HUJAN DENGAN INTENSITAS HUJAN SEDANG-DERAS
ABSTRACT: Hydrology is the
science of learning and the provision of movement under and upper water on the
earth surface. There are many events in
the hydrological cycles such as infiltration, percolation, run off,
evaporation, transpiration, and interception. The interception is the event
where rainfall felt on the vegetation of land surface is retained for a moment
before evaporation into the atmosphere.
Interception is influenced some factors which are plant species, plant
age, canopy shape, canopy with, leaf position. Therefore the existence of the
canopy can inhibit rainfall to fall on
the land surface.Research on the interception is still limited. Generally, the
value of interception is small, but it highly influences the occurrence of
erosion. This research was conducted to
determine the magnitude of interception by simulation model. The modeling used rainfall simulator as a
tool. The objectives of this research were to know the relationship between the
amount of rainfall and interception on coffee plants and to know the
interception feature pattern of coffee plants using rainfall simulator. The research used 3 heights of the plants, 3
rain conditions, and 5 densities of the plants (50%, 60%, 70%, 80% and 90%).
The data obtained was analyzed by statistical analysis. It was aimed to determine the relationship
between variables assessed. Interception pattern of coffee plants based on
density increased as the plant density increased. The plant density of 90% had the highest
interception value for each plant height. The magnitude of interception of
coffee plants based on rainfall conditions which were quite heavy (intensity of
66,294 mm/hour), heavy-1 (intensity of 93,116 mm/hour) and heavy-2 (intensity
of 133,35 mm/hour), showed the interception increased as the intensity
increased. The interception and
precipitation showed positive correlation and logarithmic relationship.
Keywords: hydrology,
interception, rainfall simulator, simulation
Penulis: Lilik Imron Naimah,
Ruslan Wirosoedarmo, J. Bambang Rahadi
Kode Jurnal: jppertaniandd080025
