{"_buckets": {"deposit": "a8befede-ecf4-4002-bd6e-ae4ac0d0ede0"}, "_deposit": {"id": "19840", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "19840"}, "status": "published"}, "_oai": {"id": "oai:soar-ir.repo.nii.ac.jp:00019840", "sets": ["1170"]}, "author_link": ["105559", "105560", "105561", "105562", "105563", "105564"], "item_1628147817048": {"attribute_name": "出版タイプ", "attribute_value_mlt": [{"subitem_version_resource": "http://purl.org/coar/version/c_970fb48d4fbd8a85", "subitem_version_type": "VoR"}]}, "item_6_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2018-02-12", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "2", "bibliographicPageStart": "e0192622", "bibliographicVolumeNumber": "13", "bibliographic_titles": [{"bibliographic_title": "PLOS ONE"}]}]}, "item_6_description_20": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "Soil respiration (R-s) plays a key role in the carbon balance of forest ecosystems. There is growing evidence that R-s is strongly correlated with canopy photosynthesis; however, how R-s is linked to aboveground attributes at various phenological stages, on the seasonal and diurnal scale, remains unclear. Using an automated closed dynamic chamber system, we assessed the seasonal and diurnal patterns of R-s in a temperate evergreen coniferous forest from 2005 to 2010. High-frequency R-s rates followed seasonal soil temperature patterns but the relationship showed strong hysteresis. Predictions of R-s based on a temperature-response model underestimated the observed values from June to July and overestimated those from August to September and from January to April. The observed R-s was higher in early summer than in late summer and autumn despite similar soil temperatures. At a diurnal scale, the R-s pattern showed a hysteresis loop with the soil temperature trend during the seasons of high biological activity (June to October). In July and August, R-s declined after the morning peak from 0800 to 1400 h, although soil temperatures continued to increase. During that period, figure-eight-shaped diurnal R-s patterns were observed, suggesting that a midday decline in root physiological activity may have occurred in early summer. In September and October, R-s was higher in the morning than in the night despite consistently high soil temperatures. We have characterised the magnitude and pattern of seasonal and diurnal R-s in an evergreen forest. 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This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited."}]}, "item_6_select_64": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_6_source_id_35": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "1932-6203", "subitem_source_identifier_type": "ISSN"}]}, "item_6_source_id_39": {"attribute_name": "NII ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "1932-6203", "subitem_source_identifier_type": "ISSN"}]}, "item_6_text_70": {"attribute_name": "wosonly keywords", "attribute_value_mlt": [{"subitem_text_value": "JAPANESE CYPRESS FOREST; CARBON-DIOXIDE FLUX; CO2 EFFLUX; ROOT RESPIRATION; TEMPERATURE SENSITIVITY; BIOPHYSICAL CONTROLS; CURRENT KNOWLEDGE; HARDWOOD FOREST; WATER-CONTENT; TIME-LAG"}]}, "item_6_textarea_68": {"attribute_name": "wosonly abstract", "attribute_value_mlt": [{"subitem_textarea_value": "Soil respiration (R-s) plays a key role in the carbon balance of forest ecosystems. There is growing evidence that R-s is strongly correlated with canopy photosynthesis; however, how R-s is linked to aboveground attributes at various phenological stages, on the seasonal and diurnal scale, remains unclear. Using an automated closed dynamic chamber system, we assessed the seasonal and diurnal patterns of R-s in a temperate evergreen coniferous forest from 2005 to 2010. High-frequency R-s rates followed seasonal soil temperature patterns but the relationship showed strong hysteresis. Predictions of R-s based on a temperature-response model underestimated the observed values from June to July and overestimated those from August to September and from January to April. The observed R-s was higher in early summer than in late summer and autumn despite similar soil temperatures. At a diurnal scale, the R-s pattern showed a hysteresis loop with the soil temperature trend during the seasons of high biological activity (June to October). In July and August, R-s declined after the morning peak from 0800 to 1400 h, although soil temperatures continued to increase. During that period, figure-eight-shaped diurnal R-s patterns were observed, suggesting that a midday decline in root physiological activity may have occurred in early summer. In September and October, R-s was higher in the morning than in the night despite consistently high soil temperatures. We have characterised the magnitude and pattern of seasonal and diurnal R-s in an evergreen forest. 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