B. Y. AminuddinM. H. GhulamW. Y. Wan AbdullahM. ZulkefliR. B. Salama2024-05-152024-05-152005Aminuddin, B. Y., Ghulam, M. H., Abdullah, W. W., Zulkefli, M., & Salama, R. B. (2005). Sustainability of current agricultural practices in the Cameron Highlands, Malaysia. Water, Air, & Soil Pollution: Focus, 5, 89-101.https://repoemc.ukm.my/handle/123456789/765A study on the sustainability of these agro-ecosystems was conducted. Results indicated that soil loss was in the range of 24-42 ton/ha/yr under vegetables and 1.3 ton under rain-shelter. Sediment load in the vegetable sub-catchment reached 3.5 g/L, 50 times higher than that associated with flowers under rain-shelter and tea. The sediments contained high nutrient loads of up to 470 kg N/ha/yr. The N, P and K lost in runoff from cabbage farms was 154 kg/season/ha, whereas in chrysanthemum farms it was 5 kg. In cabbage farms, the N, P, and K lost through leaching was 193 kg/season/ha. The NO3-N concentration in the runoff from the cabbage farms reached 25 ppm but less than 10 ppm in runoff from rain-shelters. Inorganic pollution in the rivers was within the acceptable limit of 10 ppm.agricultural pollutionenvironmenthighlandnutrient losssustainable agriculturesoil loss