{"_buckets": {"deposit": "1bf72967-7b6d-4564-81a6-f641807847db"}, "_deposit": {"id": "30349", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "30349"}, "status": "published"}, "_oai": {"id": "oai:nagoya.repo.nii.ac.jp:00030349"}, "item_9_alternative_title_19": {"attribute_name": "\u305d\u306e\u4ed6\u306e\u8a00\u8a9e\u306e\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_alternative_title": "Findings on vegetation changes since Late Pleistocene confirmed at two boring cores in the eastern part of Hokkaido (No.1 Lake Akan and No.1 Toyozumi, Lake Abashiri) by pollen analysis and AMS 14C Dating"}]}, "item_9_biblio_info_6": {"attribute_name": "\u66f8\u8a8c\u60c5\u5831", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2020-06", "bibliographicIssueDateType": "Issued"}, "bibliographicPageEnd": "26", "bibliographicPageStart": "16", "bibliographicVolumeNumber": "4", "bibliographic_titles": [{"bibliographic_title": "\u540d\u53e4\u5c4b\u5927\u5b66\u5e74\u4ee3\u6e2c\u5b9a\u7814\u7a76"}]}]}, "item_9_description_4": {"attribute_name": "\u6284\u9332", "attribute_value_mlt": [{"subitem_description": "The authors conducted pollen analysis on 35 samples collected from No.1 core of Lake Akan and on 100 samples from No.1 core of Toyozumi, Lake Abashiri and also performed AMS 14C dating on 6 samples from the area, where vegetation changes have been confirmed. Detailed research investigation from expert perspective on peripheral vegetation of the two sites, 50 km away from each other, demonstrated that the vegetation was different considerably. The comparison of the point at the depth of 11m in the upper part of both the two cores indicated the fact in common that Quercus was the main vegetation. It is assumed that these Quercus-dominant parts are sediments formed during the Warm Period. The results from pollen analysis on the topmost part, A zone of both cores, showed that Abies sachalinensis and Alnus hirsuta increased in the No.1 core of Lake Akan and Abies sachalinensis and Picea jezoensis were on the downward trend in the No.1 core of Toyozumi, Lake Abashiri. While Abies sachalinensis and Alnus were on the increase in and after 529-307 (95.4%) cal BP in No.1 core, Lake Akan, evergreen conifer was declining in and after 1065-934 (95.4%) cal BP in No.1 core of Lake Abashiri. Since such a difference is due to the difference in the nature of the underground soil between the two sites, we have considered that past geohistrical effects should also be fully taken into account when we take measures against the effects of global warming.\n\u963f\u5bd2\u6e56No.1\u30b3\u30a2\u306735\u8a66\u6599\u3001\u7db2\u8d70\u6e56\u8c4a\u4f4fNo.1\u30b3\u30a2\u3067100\u8a66\u6599\u306e\u82b1\u7c89\u5206\u6790\u3092\u884c\u3063\u305f\u3002\u690d\u751f\u306b\u5909\u5316\u304c\u898b\u3089\u308c\u308b\u4f4d\u7f6e\u30676\u70b9\u306eAMS14C\u5e74\u4ee3\u6e2c\u5b9a\u3092\u884c\u3063\u305f\u300250km\u96e2\u308c\u305f2\u5730\u70b9\u306e\u5468\u8fba\u690d\u751f\u3092\u8a73\u7d30\u306b\u691c\u8a0e\u3059\u308b\u3068\u304b\u306a\u308a\u306e\u9055\u3044\u304c\u307f\u3089\u308c\u305f\u3002\u4e21\u30b3\u30a2\u306e\u4e0a\u90e811m\u3092\u6bd4\u8f03\u3057\u305f\u3068\u3053\u308d\u30b3\u30ca\u30e9\u4e9c\u5c5eQuercus\u306e\u591a\u3044\u90e8\u5206\u304c\u5171\u901a\u3057\u3066\u3044\u305f\u3002\u3053\u306e\u30b3\u30ca\u30e9\u4e9c\u5c5e\u306e\u591a\u3044\u90e8\u5206\u306f\u6e29\u6696\u671f\u306e\u5806\u7a4d\u7269\u3068\u8003\u3048\u3089\u308c\u308b\u3002\u3053\u306e\u4e21\u30b3\u30a2\u306e\u6700\u4e0a\u90e8\u306eA\u5e2f\u306b\u3064\u3044\u3066\u82b1\u7c89\u5206\u6790\u7d50\u679c\u3092\u6bd4\u3079\u308b\u3068\u963f\u5bd2\u6e56No.1\u30b3\u30a2\u3067\u306f\u30c8\u30c9\u30de\u30c4Abies sachalinensis\u3068\u30cf\u30f3\u30ce\u30adAlnus hirsuta\u306b\u5897\u52a0\u50be\u5411\u304c\u898b\u3089\u308c\u3001\u7db2\u8d70\u6e56\u8c4a\u4f4fNo.1\u30b3\u30a2\u306eA\u5e2f\u306b\u304a\u3044\u3066\u306f\u30c8\u30c9\u30de\u30c4\u3068\u30a8\u30be\u30de\u30c4Picea 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