Evaluating nitrogen saturation in forested ecosystems based on stoichiometry
| Project/Area Number |
26450198
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Forest science
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| Research Institution | Kyushu University |
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Principal Investigator |
Masaaki Chiwa 九州大学, 農学研究院, 准教授 (30380554)
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| Co-Investigator(Kenkyū-buntansha) |
久米 篤 九州大学, 農学研究院, 教授 (20325492)
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| Co-Investigator(Renkei-kenkyūsha) |
ENOKI Tsutomu 九州大学, 大学院農学研究院, 准教授 (10305188)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
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: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | 窒素飽和 / リン制限 / ストイキオメトリー / 蛇紋岩 / 森林生態系 |
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| Outline of Final Research Achievements |
Elevated atmospheric nitrogen (N) deposition and its ecological impact is an issue of widespread concern. This study evaluated the effects of elevated N deposition on the nutrient status of Japanese cedar and Japanese cypress based on stoichiometry. Results showed that elevated atmospheric N deposition increased N uptake by these plantation and subsequently enhanced phosphorus (P) demand. However, these plantations did not exhibit P deficiency. Higher P uptake was achieved by enhancing P uptake efficiency, which did not result in P limitation within the plantation.
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Report
(4 results)
Research Products
(4 results)
