INFILTRASI DAN LIMPASAN PERMUKAAN PADA POLA TANAM AGROFORESTRI DAN MONOKULTUR : STUDI DI DESA JERU KABUPATEN MALANG

The research aims to determine rate of water infiltration and soil run off on agroforestry, parennial and annual monoculture cropping systems was conducted at Jeru village Malang Refency. The water infiltration rate was measured by infiltrometer and the soil run off was measured simple ranfall simulator to make run off on the soil. The run off water and soil flowing was sheltered into a glass and then weighing the dry mass of the soil. Parameters observed were plant species, trees architectures model, the amount of litter in the land. The results showed that the highest water infiltration rate and the lowest soil run off was on multiculture agroforestry each 63,5 cm.h-1 and 0,3 g.lt-1 whereas the lowest water infiltration and the highest soil run off was on perennial trees monoculture cropping system each 30 h-1 and 2,9 g.lt-1 . The multiculture agroforestry was dominated by ‘waru gunung’ (Hibiscus macrophyllus), ‘mindi’ (Melia azedarach), ‘mahoni’ (Sweitenia macrophylla), bamboes and cassava (Manihot esculenta) that have different tree architecture models. The diversity of the tree species also caused varying litters produced. Key Word : infiltration, run off, architecture, litte