並列タイトル等Long-term durability of carbon sequestration in terrestrial ecosystems
一般注記type:Working Paper
研究成果の概要 (和文) : 菅平調査により、二次遷移に伴いバイオマスや土壌有機炭素は増加傾向を示し,草原期から木本期への移行時に土壌有機炭素量の減少が明らかとなった。その原因は,草本期では土壌へ供給されていた枯死有機物の多くが樹木体内に残るようになったためであると考えられた。遷移/炭素動態モデルによるシミュレーションは実測値と同様の結果を示す。一次遷移に伴う土
壌有機炭素の増加は極相に至るまで継続することが三宅島調査で明らかとなった。
研究成果の概要 (英文) : This study consists of the following three sub-themes : 1) quantitative evaluation of temporal variability of carbon cycle parameters along with secondary succession ; 2) examination of sustainable carbon sequestration within developing ecosystems in terms of a succession/carbon dynamics model ; 3) temporal variation of soil organic carbon with primary succession. Our chronosequence study of secondary succession in Sugadaira, Nagano prefecture, used for the following ecosystem sequence : Artemisia-dominant grassland, Miscanthus-dominant grassland, Populus-dominant forest, Pinus-dominant forest, Quercus-dominant forest and Fagus-dominant forest. Carbon sequestration within the plants increased with succession. However, litter carbon showed no increase or decrease with succession. Soil carbon increased in herbaceous sere, and decreased in early forest stages. Thus, our results demonstrated that secondary succession influenced the size of carbon pools within the ecosystems. The measured results were confirmed by a simulation in terms of a succession/carbon dynamics model. In primary succession study (Miyakejima study site), soil organic carbon increased from a naked land to a climax stage.
一次資料へのリンクURLhttps://hosei.ecats-library.jp//da/repository/00008098/12_kaken_2010_mariko.pdf
連携機関・データベース国立情報学研究所 : 学術機関リポジトリデータベース(IRDB)(機関リポジトリ)