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Bibliographic Record
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- Material Type
- 文書・図像類
- Author/Editor
- 舘野, 隆之輔
- Author Heading
- 舘野, 隆之輔 タテノ, リュウノスケ
- Publication, Distribution, etc.
- Alternative Title
- The effects of whole watershed clearcutting on nutrient cycling in the forested watershed on volcanic immature soils
- Text Language Code
- jpn
- Target Audience
- 一般
- Note (General)
- 2008-2010年度科学研究費補助金(若手研究(B))研究成果報告書 課題番号：20780120 研究代表者：舘野隆之輔 (鹿児島大学農学部准教授)本研究は、土壌中の有機物含量が非常に小さい火山灰性未熟土壌に成立する森林の皆伐後の短期的･長期的な養分循環の変化を明らかにすることを目的として行った。樹木の一次生産量、土壌窒素無機化速度、樹木の窒素吸収量など窒素循環に関わるパラメーターは、人工林と常緑広葉樹林ともに未熟土以外の同一気候帯の森林と大差ないことが明らかとなった。一方で伐採に伴う硝酸流出量は、他の同一気候帯での結果に比べて小さく、このことは本調査地の特徴的な土壌特性や水文特性などを反映しているものと考えられた。This study aimed to reveal the short- and long-term changes in nutrient cycling after whole tree clearcutting of forested watershed developed on volcanic immature soil where soil organic matter contents is quite low. There were no clear differences in the parameters concerning nitrogen cycling such as net primary production, soil nitrogen mineralization and nitrogen uptake by plant between this study site and other regions. In contrast, nitrate discharge was significantly lower than other regions probably due to the unique soil properties and hydrological process of this study site.