Journal of Pollution Effects & Control
Open Access

Impact of Storm water and agricultural practices on water and soil quality along the major tributary areas of Mandulog Watershed in Iligan city, Philippines

International Conference on Pollution Control & Sustainable Environment

April 25-26, 2016 Dubai, UAE

Ma Cecilia V Almeda

Mindanao State University-Iligan Institute of Technology, Philippines

Posters & Accepted Abstracts: Pollut Eff Cont

Abstract :

Water and soil qualities reflect combined effects of many processes along water pathways. On the other hand, quality deterioration is largely caused by anthropogenic activities and unpredictable climate changes. At the watershed scale, changing climate has large impact on the soilâ�?�?s nutrient. Such is the case in the Mandulog Watershed in Iligan city. After the devastating super typhoon â�?�?Wasiâ�? in December 2011, the researchers aimed to document initial assessment of soil and stream water quality at the downstream barangays Digkilaan and Dodiongan of the Mandulog Watershed. Physicochemical analysis of representative soil samples revealed that the area is still in its vegetative state. The clay-loamy characteristic of the samples is indicative of an adequate amount of organic matter content (2.85-3.54 ppm). It also implies soilâ�?�?s has high capacity for water retention and buffering capability, thus delaying the soil acidity that could be caused by fertilizer inputs. The soil has normal pH range of 6.0-7.3; phosphorus content of 6.83-9.50 ppm (moderate range); potassium content of 0.33-0.43 ppm (adequate range). Portions of the sampling area had landslides, which may alter the soilâ�?�?s nutrient balance. Sizes of major streams and creeks noticeably diminished. The significant loss of water could be due to irrigation and the last destructive storm flood. Analysis of stream water samples revealed the pH range of 7.8-8.1; nitrate and phosphate content are within normal range indicating that the streams are not yet threatened by eutrophication. The conductivity values are at normal range indicating undetected dissolve heavy metals.

Biography :

Email: sesillea@gmail.com