| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Outline of Final Research Achievements |
A GIS algorithm to extract rice fields based on width from polygon data was developed to map yatsuta rice paddy fields. After defining “narrow rice paddies” as those of width under 100 meters, a consistent nation-wide database of narrow rice paddies was created from Ministry of Environment vegetation polygon data. Analysis of land uses adjacent to rice fields found that woodlands occupied a large proportion of the border with narrow rice paddies. Although yatsuta rice paddies constitute a small proportion of total rice paddy area, with their strong linkages to woodlands and other adjacent land uses, they play important roles for the preservation of the agro-environment, but narrow rice paddies may be more likely to be abandoned compared to main-stream rice fields.
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