Water quality assessment in various land use and land cover of Muleta Watershed Bukidnon, Philippines

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Research Paper 01/03/2018
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Water quality assessment in various land use and land cover of Muleta Watershed Bukidnon, Philippines

Scarlet Wine L. Dumago, George R. Puno, Sheena S. Ingotan
J. Bio. Env. Sci.12( 3), 201-209, March 2018.
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Abstract

Changes in the land cover and land management practices in Muleta watershed have been considered as one of the key influencing factors behind threats affecting the water quality. The study aims to assess and analyze useful evidence on the influence of various land use/cover on the stream physico-chemical properties of Muleta River based on water quality monitoring data with the water quality guidelines for classification of the DENR Administrative Order No. 2016-08 (DAO 2016-08). Major LULC was delineated using satellite data specifically Landsat 8 OLI of year 2015 and was downloaded from USGS Earth Explorer. The watershed has six (6) existing land cover: forest, agricultural land, bareland, built-up area, grassland and water. The upstream was found to be covered with perennial vegetation; the midstream is used for agriculture and covered with least forest; the downstream was mainly used for residential and utilized for different forms of agriculture. The results obtained from the water quality were compared with existing land use/cover of the watershed at α=0.01 significance level. The result shows that temperature, TSS, nitrates and phosphates are significantly different water quality result in parallel to the LULC of the sampling site. On the other hand, the pH, turbidity, dissolved oxygen, and TDS are not significantly different from each other regardless land cover/land use surrounding the water system. Generally, the result is of great help in developing and implementing watersheds plans to protect land and water resources and improve the overall quality of the watersheds.

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Boesch D, Burreson E, Dennison W, Houde E, Kemp M, Kennedy V, Newell R, Paynter K, Orth R, Ulanowicz R. 2001. Factors in the Decline of Coastal Ecosystems. Article of Science. Vol 293, Issue 5535, p.1589-1591.

Chu HJ, Liu CY, Wang CK. 2013. Identifying the Relationship between Water Quality and Land Cover Changes in the Tseng-Wen Reservoir Watershed of Taiwan. 2013. International Journal of Environmental Research and Public Health. ISSN 1660-4601. p 478-489.

Department of Environment and Natural Resources Administrative Order No. 2016-08 (DENR-DAO No. 2016-08). 2016. Water Quality Guidelines and General Effluent Standards of 2016. Department of Environment and Natural Resources Visayas Avenue, Diliman, Quezon City.

Duxbury B, Eaton K, Kitchen R, Springman K. 2011. Exploration of Land Cover Correlations to Water Quality within the Antietam Creek Watershed: A Case Study. Science of Land Use Change.

Kebede W, Tefera M, Habitamu T, Tolera Alemayehu T. 2014. Impact of Land Cover Change on Water Quality and Stream Flow in Lake Hawassa Watershed of Ethiopia. Agricultural Sciences 5, 647-659. http://dx.doi.org/10.4236/as.2014.58068

Michaud JP. 1991. A Citizens Guide to Understanding and Monitoring Lakes and Streams. Publ. # 94-149. Washingston State Department of Ecology, Olympia, USA (360), 407-7472.

United States Environmental Protection Agency (USEPA). 2017. Healthy Watersheds Protection. Ecosystem Benefits and Services.