| Project/Area Number |
15H04507
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Forest science
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| Research Institution | University of Tsukuba |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
山路 恵子 筑波大学, 生命環境系, 准教授 (00420076)
小川 泰浩 国立研究開発法人森林研究・整備機構, 森林研究部門 森林防災研究領域, 主任研究員 (50353628)
田村 憲司 筑波大学, 生命環境系, 教授 (70211373)
廣田 充 筑波大学, 生命環境系, 准教授 (90391151)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2015: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
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| Keywords | 緑化 / 火山 / 自生種 / 遷移初期植物 / 緑化素材 / 土砂流出 / 栄養塩 / 島 / 火山荒廃地 / 三宅島 / 先駆植物 / 光合成 / 生態系修復・整備 / 森林工学 / 生物圏現象 / 土壌圏現象 / 基礎工 / 生態系修復 / 遷移初期種 |
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| Outline of Final Research Achievements |
To develop revegetation technology without using alien plants on volcanically devastated sites, we examined effects of a new revegetation material, the crescent roll type revegetation material on stopping soil erosion and introduction of native plants, and investigated eco-physiology of native pioneer species used for revegetation. Installation of the crescent roll type revegetation material reduced erosion rates (10% to 50%, compared to control) in a rill and facilitate natural invasion of plants. According to the analysis of nutrient use and photosynthesis on 3 pioneer species, all species had relatively high nutrient contents on volcanically devastated sites. These species seem to absorb nutrients efficiently. In addition, Alnus sieboldiana, a nitrogen fixing tree had low resorption efficiency of leaf nitrogen and phosphorous, and Miscanthus condensatus had high photosynthetic nitrogen use efficiency.
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