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Effects of Land Use/Cover Type On Surface Water Quality: In The Case Of Chancho and Sorga Watershed, East Wollega Zone, Oromia, Ethiopia

Author

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  • Tolera Megersa
  • Taffa Tullu

    (Center for Environmental Science, Addis Ababa University, Addis Ababa, Ethiopia)

Abstract

The result indicated that there were significant differences among the land use/cover types in deteriorating water quality. Agriculture dominated surface water values for total nitrogen, total suspended solids & acidity (5.09 and 65.68mg/l, 4.67), respectively, was greater than the others two land uses, this is because of use of inorganic fertilizer and runoff from cultivated land, whereas, Urban dominated surface water was greater in total dissolved solid (111.7mg/l), it is due to urban dissolved solids runoff to the downstream. Forest dominated surface water has fewer amounts of TDS, TSS &TN (62.66, 18,28,2.95 mg/l), as compared to other land use types. Total phosphors(TP) values of Urban, Agriculture& Forest dominated surface water were 0.74,0.56 &0.0001mg/l, respectively, which was greater in Urban followed by Agriculture dominated surface water. Besides, correlation among water quality indicators were analyzed for each land use/cover type, the results of correlation analysis indicated that almost all water quality parameters of forest and agriculture dominated sub-watershed values were positively correlated with each other, except TSS and TN of forest and TN and PH of agriculture were negatively correlated. Whereas, more of urban dominated surface water quality parameters values were negatively correlated to each other, except TN and PH at 95% confidence interval.

Suggested Citation

  • Tolera Megersa & Taffa Tullu, 2018. "Effects of Land Use/Cover Type On Surface Water Quality: In The Case Of Chancho and Sorga Watershed, East Wollega Zone, Oromia, Ethiopia," International Journal of Environmental Sciences & Natural Resources, Juniper Publishers Inc., vol. 12(4), pages 94-103, June.
    • Handle: RePEc:adp:ijesnr:v:12:y:2018:i:4:p:94-103
    DOI: 10.19080/IJESNR.2018.12.555842
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    References listed on IDEAS

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    1. Bahman Amiri & Kaneyuki Nakane, 2009. "Modeling the Linkage Between River Water Quality and Landscape Metrics in the Chugoku District of Japan," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 23(5), pages 931-956, March.
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    Keywords

    earth and environment journals; environment journals; open access environment journals; peer reviewed environmental journals; open access; juniper publishers; ournal of Environmental Sciences; juniper publishers journals ; juniper publishers reivew;
    All these keywords.

    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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