| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Outline of Final Research Achievements |
Water quality in a brackish lake has been tried to improve by emission control of pollutant loads to the lake and rivers through putting an adequate sewage system in place and development of laws, though water quality in the lake does not been improved well as we expected. Thus, the Lake Abashiri basin containing seven river watersheds was chosen as a target area and conducted a field research and water quality analysis from April to December in 2013 and 2014. As results, it was grasped a relationship between water quality and landuse ratio among the watersheds. As well, it was understood that the Abashiri River had the biggest impact for water environment in the Lake Abashiri because of its watershed size. Moreover, it was presumed that an impact of the surrounding small watersheds, where contained higher agricultural and residential area, against water quality in the lake might not be negligible because concentrations of water quality were higher than the forest-dominant watersheds.
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