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タイトル: | CO2 efflux from leaf litter focused on spatial and temporal heterogeneity of moisture |
著者: | Ataka, Mioko Kominami, Yuji Jomura, Mayuko Yoshimura, Kenichi Uematsu, Chiyomi |
著者名の別形: | 安宅, 未央子 |
キーワード: | Leaf litter respiration Litter decomposition Moisture Spatial and temporal variation Soil respiration |
発行日: | 26-Oct-2013 |
出版者: | Springer Japan |
誌名: | Journal of Forest Research |
巻: | 19 |
号: | 2 |
開始ページ: | 295 |
終了ページ: | 300 |
抄録: | Leaf litter respiration (R [LL]) was directly measured in situ to evaluate relationships with the water content in leaf litter (WC), which is distributed heterogeneously under natural conditions. To do so, we developed a small, closed static chamber system using an infrared gas analyzer, which can measure instantaneous R [LL]. This study focuses on the measurement of CO2 effluxes from leaf litter using the chamber system in the field and examines the relationship between R [LL] and WC among seven broadleaf species in a temperate forest. The measurements focused on the position of leaves within the litter layer, finding that both R [LL] and WC were significantly higher in the lower layer. The value of R [LL] increased with increasing WC, and the response of R [LL] to WC was similar among all seven species. Moreover, the temporal variation in WC differed among three species and was associated with leaf litter thickness. The observed heterogeneity in WC induced by the physical environment (e.g., position and thickness of leaf litter) affects the variation in WC and, therefore, both R [LL] and the decomposition rates of organic matter in the litter layer. |
著作権等: | The final publication is available at Springer via http://dx.doi.org/10.1007/s10310-013-0422-1 この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/198277 |
DOI(出版社版): | 10.1007/s10310-013-0422-1 |
出現コレクション: | 学術雑誌掲載論文等 |
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