The appearance of the flow often induces muddy sand, organic matter, dissolved substances and other contaminated substances. That is the one of the causes making the surface water having low stability and high pollution level. Therefore, to study the environmental parameters of the surface runoff is urgently needed in order to assess the possibility of polluting the surface water from non-point source pollution and initially propose measures to control water pollution. The research results showed that the runoff coefficient in 3 different land use models is different, in which, the runoff coefficient in cassava model is highest while the runoff coefficient in the model of Eucalyptus is lowest when compared with that in the Hybrid acacia plantation model. Nitrate and sulfate concentrations in the runoff reached the highest numbers on the model of cassava (1.3 mg/l and 42.0 mg/l separately), while phosphate concentrations in the runoff is highest on the model of eucalyptus (1.16 mg/I) although these differences are not significant using the Kruskal-Wallis statistic test Overall, the concentrations of the nutrients in the runoff of the 3 models are under the standardized threshold. Only the phosphate concentrations in the 3 models are exceeding the standard, being able to cause negative impacts on the environment.
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