Amarasekara, M. G. T. S.; Kumarihamy, R. M. K.; … - International Water Management Institute (IWMI) - 2010
The results of many studies have revealed that intensive farming on steep slopes, coupled with over application of fertilizers and accumulation of nutrients in downstream water bodies due to soil erosion, have contributed to environmental hazards in the Upper Mahaweli Catchment Area (UMCA) of...