There are factors affecting erosion such as climate, soil type, vegetation and topography. Upland areas are denuding exponentially due to the fact that those people looking for livelihood had little concern and awareness on environmental sustainability and management. Upland farming practices that are easy like weeding, pest control and fertilization were often carried out without soil erosion control and water management. The result of the study revealed that an area with intercropped permanent crops has less amount of soil eroded or tolerable annual soil loss. But the areas with short duration crops (cash crops) and which adopted the same cropping pattern from the previous season resulted to severe soil erosion. Calculated annual soil erosion are 3.33, 4.57, 23.18, 0.31 tons and zero erosion for Site 1, Site 2, Site 3, Site 4, and Site 5, respectively.
Key words: Intercrop, severe erosion, tolerable erosion, Bataan Philippines.
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