| Budget Amount *help |
¥26,260,000 (Direct Cost: ¥20,200,000、Indirect Cost: ¥6,060,000)
Fiscal Year 2014: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Fiscal Year 2012: ¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000)
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| Outline of Final Research Achievements |
The development of the method for restoring seaweed beds using steelmaking slag and compost was investigated in this study. The influence of compost including humic substances on Fe elution from steelmaking slag and the growth of seaweed was evaluated. Fe elution test and culture examination of a blown alga, Eisenia bycyclis were examined. It was found that the kinds of composts mixed with steelmaking slag were related to the characteristic of Fe elution and the growth rate of the alga. On the other hand, the optimum installation process of the method was also examined. The model of the seaweed growth for evaluating the main possible factor that reduces seaweed beds was improved by changing some equations for the relationship between nutrient salts and seaweed growth. A new process for installing the restoration method in coastal area could be proposed based on the results of the environmental investigations.
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