Trend of Water Quality and Model for Forecasting Eutrophication Occurrence in Songkhla Lake, Thailand
The Songkhla Lake Basin is one of rapid economic growth region, with associated discharges of waste products and conflicts of land use change. This study aims to investigate water quality and develop a statistical model for estimating when water quality conditions are conducive given Chlorophyll-...
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Format: | Other |
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Language: | English |
Published: |
2016
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Subjects: | |
Online Access: | http://kb.psu.ac.th/psukb/handle/2016/15030 |
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Institution: | Prince of Songkhla University |
Language: | English |
Summary: | The Songkhla Lake Basin is one of rapid economic growth region, with associated
discharges of waste products and conflicts of land use change. This study aims to investigate water
quality and develop a statistical model for estimating when water quality conditions are conducive
given Chlorophyll-a concentration exceeds 10 mg/l. The model is based on multivariate correlations
between Chlorophyll-a concentration and limnological characteristics, season, climatic factors and
water quality parameters from official data at 25 stations around Songkhla Lake collected by the
National Institute of Coastal Aquaculture (NICA), Department of Fisheries of Thailand, from March
1992 to December 2003. The resultant forecasting model gave an r-squared of 50.5% and
statistically significant associations with Lake Zone, season, climatic factors (air temperature and
rainfall) and water quality parameters (temperature, salinity, dissolved oxygen, pH, transparency,
total organic carbon, orthophosphate and ammonia). This model can provide a practical lake
management tool for eutrophication surveillance. Furthermore, the study raised the problem of high
potential risk and exceeding the relevant the surface water standards of some water quality
parameter. We suggest that environmental awareness among the public is the first key to success
in sustainable development of the Songkhla Lake Basin. |
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