Assessing the Impact of Land Use on Water Quality across Multiple Spatial Scales in U-tapao River Basin, Thailand

Authors

  • S. Gyawali Research and Development Centre, Nepal (RDC, Nepal), Kathmandu
  • K. Techato Faculty of Environmental Management, Prince of Songkla University, Hatyai
  • S. Monprapusson Faculty of Social Science, Srinakharinwirot University, Bangkok

DOI:

https://doi.org/10.3126/jist.v20i2.13949

Keywords:

Land use, Multiple spatial scales, U-tapao river basin, Water quality

Abstract

The study investigated the linkages between land uses and water quality in U-tapao river basin, Thailand, in order to examine the impact of land use changes on full -basin, sub-watershed and buffer zone scales (1000m, 500m and 200m) on river water quality through Geographical Information Systems (GIS) and statistical analyses. Correlation and regression analysis were applied for ten water quality parameters. In scale analysis, in the most cases, the sub-watershed scale showed the clear relationship between land use water quality rather than full-basin and buffer zone scales. This indicates that the level of relationship between land use and water quality depends upon scale therefore the relationship between water quality parameters and land uses should be studied in multiple scales and it helps to develop effective river basin management in future.

Journal of Institute of Science and Technology, 2015, 20(2): 54-60

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Published

2015-11-26

How to Cite

Gyawali, S., Techato, K., & Monprapusson, S. (2015). Assessing the Impact of Land Use on Water Quality across Multiple Spatial Scales in U-tapao River Basin, Thailand. Journal of Institute of Science and Technology, 20(2), 54–60. https://doi.org/10.3126/jist.v20i2.13949

Issue

Vol. 20 No. 2 (2015)

Section

Research Articles

License

The views and interpretations in this journal are those of the author(s). They are not attributable to the Institute of Science and Technology, T.U. and do not imply the expression of any opinion concerning the legal status of any country, territory, city, area of its authorities, or concerning the delimitation of its frontiers of boundaries.

The copyright of the articles is held by the Institute of Science and Technology, T.U.