{"_buckets": {"deposit": "ba5311d2-d4f9-4921-b79b-1da27e9cf01f"}, "_deposit": {"id": "2005818", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "2005818"}, "status": "published"}, "_oai": {"id": "oai:repository.dl.itc.u-tokyo.ac.jp:02005818", "sets": []}, "author_link": [], "item_4_biblio_info_7": {"attribute_name": "\u66f8\u8a8c\u60c5\u5831", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2022", "bibliographicIssueDateType": "Issued"}, "bibliographicPageEnd": "14", "bibliographicPageStart": "1", "bibliographicVolumeNumber": "147", "bibliographic_titles": [{"bibliographic_title": "\u6771\u4eac\u5927\u5b66\u8fb2\u5b66\u90e8\u6f14\u7fd2\u6797\u5831\u544a", "bibliographic_titleLang": "ja"}, {"bibliographic_title": "Bulletin of The University of Tokyo Forests", "bibliographic_titleLang": "en"}]}]}, "item_4_description_5": {"attribute_name": "\u6284\u9332", "attribute_value_mlt": [{"subitem_description": "\u5929\u7136\u6797\u3092\u9069\u6b63\u306b\u7ba1\u7406\u3057\u3066\u3044\u304f\u3046\u3048\u3067\uff0c\u305d\u306e\u8cc7\u6e90\u72b6\u6cc1\u3092\u6b63\u78ba\u306b\u628a\u63e1\u3057\u3066\u304a\u304f\u3053\u3068\u306f\u91cd\u8981\u306a\u8ab2\u984c \u306e\u4e00\u3064\u3067\u3042\u308b\u3002\u672c\u7814\u7a76\u3067\u306f\uff0c\u7d04 1,300 ha \u306e\u5929\u7136\u6797\u3092\u6301\u3064\u6771\u4eac\u5927\u5b66\u5343\u8449\u6f14\u7fd2\u6797\u306b\u304a\u3044\u3066\u8abf\u67fb\u3092\u884c \u3044\uff0c\u8cc7\u6e90\u91cf\uff0c\u30b5\u30a4\u30ba\u69cb\u9020\uff0c\u7a2e\u7d44\u6210\u306e\u73fe\u72b6\u3092\u660e\u3089\u304b\u306b\u3057\u305f\u30022019 \u5e74\u304b\u3089 2020 \u5e74\u306b\u304b\u3051\u3066\uff0c\u91dd\u5e83 \u6df7\u4ea4\u5929\u7136\u6797\u3068\u5e83\u8449\u6a39\u5929\u7136\u6797\u306b 0.03 ~ 0.1 ha \u306e\u5186\u5f62\u30d7\u30ed\u30c3\u30c8\u3092\u8a08 39 \u304b\u6240\u8a2d\u7f6e\u3057\uff0c\u6a39\u7a2e\u3068\u80f8\u9ad8\u76f4\u5f84(DBH)\uff0c\u6a39\u9ad8\u3092\u6e2c\u5b9a\u3057\u305f\u3002\u7acb\u6728\u672c\u6570\u5bc6\u5ea6\u3068\u6797\u5206\u6750\u7a4d\u306e\u5e73\u5747\u5024\u306f\uff0c\u91dd\u5e83\u6df7\u4ea4\u5929\u7136\u6797\u304c 1,842 \u672c /ha \u3068 624.2 m3/ha\uff0c\u5e83\u8449\u6a39\u5929\u7136\u6797\u304c 3,123 \u672c /ha \u3068 483.3 m3/ha \u3067\u3042\u308a\uff0c\u5343\u8449\u770c\u306b\u3088\u308b\u7d71\u8a08\u5024\u3092\u5927\u5e45\u306b \u4e0a\u56de\u308b\u8cc7\u6e90\u91cf\u3092\u6709\u3057\u3066\u3044\u305f\u3002\u5e73\u5747 DBH \u3068\u8001\u9f62\u6797\u6307\u6570\u306e\u5e73\u5747\u5024\u306f\uff0c\u3044\u305a\u308c\u3082\u91dd\u5e83\u6df7\u4ea4\u5929\u7136\u6797(15.6 cm \u3068 0.66)\u304c\u5e83\u8449\u6a39\u5929\u7136\u6797(13.3 cm \u3068 0.43)\u306b\u6bd4\u3079\u3066\u6709\u610f\u306b\u5927\u304d\u306a\u5024\u3068\u306a\u3063\u305f\u3002\u6750\u7a4d\u6bd4\u7387\u3067\u307f\u305f \u3068\u304d\u306e\u4e3b\u306a\u69cb\u6210\u6a39\u7a2e\u306f\uff0c\u91dd\u5e83\u6df7\u4ea4\u5929\u7136\u6797\u304c\u30e2\u30df(45%)\uff0c\u30a2\u30ab\u30ac\u30b7(10%)\uff0c\u30b9\u30c0\u30b8\u30a4(9%)\u306e\u9806\uff0c \u5e83\u8449\u6a39\u5929\u7136\u6797\u304c\u30a2\u30ab\u30ac\u30b7(31%)\uff0c\u30b9\u30c0\u30b8\u30a4(29%)\uff0c\u30a6\u30e9\u30b8\u30ed\u30ac\u30b7(9%)\u306e\u9806\u3067\u3042\u3063\u305f\u3002", "subitem_description_language": "ja", "subitem_description_type": "Abstract"}, {"subitem_description": "For the proper management of natural forests, an accurate understanding of their resource status is an important challenge. This study conducted an inventory in the University of Tokyo Chiba Forest, which has approximately 1,300 ha of natural forest, to assess the current status of resource amount, size structure, and species composition. A total of 39 circular plots with the plot size of 0.03-0.1 ha were set up between 2019 and 2020 in the mixed conifer-broadleaf and broadleaf-dominated natural forests. Tree species, diameter at breast height (DBH), and tree height were measured. The mean tree density and stand volume were 1,842 trees/ha and 624.2 m3/ha in the mixed conifer-broadleaf natural forest, and 3,123 trees/ha and 483.3 m3/ha in the broadleaf- dominated natural forest, respectively. The resources were much larger than the statistical values reported by the Chiba prefectural government. The mean DBH and old-growth index were significantly higher in the mixed conifer-broadleaf natural forest (15.6 cm and 0.66) than in the broadleaf-dominated natural forest (13.3 cm and 0.43). The major tree species in terms of the percentage of stand volume were Abies firma (45%), Quercus acuta (10%), and Castanopsis sieboldii (9%) in the mixed conifer-broadleaf natural forest, and Q. acuta (31%), C. sieboldii (29%), and Quercus salicina f. angustata (9%) in the broadleaf-dominated natural forest.", "subitem_description_language": "en", "subitem_description_type": "Abstract"}]}, "item_4_description_6": {"attribute_name": "\u5185\u5bb9\u8a18\u8ff0", "attribute_value_mlt": [{"subitem_description": "\u539f\u8457\u8ad6\u6587", "subitem_description_language": "ja", "subitem_description_type": "Other"}]}, "item_4_publisher_20": {"attribute_name": "\u51fa\u7248\u8005", "attribute_value_mlt": [{"subitem_publisher": "\u6771\u4eac\u5927\u5b66\u5927\u5b66\u9662\u8fb2\u5b66\u751f\u547d\u79d1\u5b66\u7814\u7a76\u79d1\u9644\u5c5e\u6f14\u7fd2\u6797", "subitem_publisher_language": "ja"}, {"subitem_publisher": "The University of Tokyo Forests", "subitem_publisher_language": "en"}]}, "item_4_source_id_10": {"attribute_name": "\u66f8\u8a8c\u30ec\u30b3\u30fc\u30c9ID", "attribute_value_mlt": [{"subitem_source_identifier": "AN00162451", "subitem_source_identifier_type": "NCID"}]}, "item_creator": {"attribute_name": "\u8457\u8005", "attribute_type": "creator", "attribute_value_mlt": [{"creatorAffiliations": [{"affiliationNames": [{"affiliationName": "\u6771\u4eac\u5927\u5b66", "affiliationNameLang": "ja"}, {"affiliationName": "The University of Tokyo", "affiliationNameLang": "en"}]}], "creatorNames": [{"creatorName": "\u5c3e\u5f35, \u654f\u7ae0", "creatorNameLang": "ja"}, {"creatorName": "OWARI, Toshiaki", "creatorNameLang": "en"}]}, {"creatorAffiliations": [{"affiliationNames": [{"affiliationName": "\u6771\u4eac\u5927\u5b66", "affiliationNameLang": "ja"}, {"affiliationName": "The University of Tokyo", "affiliationNameLang": "en"}]}], "creatorNames": [{"creatorName": "\u5927\u77f3, \u8aed", "creatorNameLang": "ja"}, {"creatorName": "OISHI, Satoru", "creatorNameLang": "en"}]}, {"creatorAffiliations": [{"affiliationNames": [{"affiliationName": "\u6771\u4eac\u5927\u5b66", "affiliationNameLang": "ja"}, {"affiliationName": "The University of Tokyo", "affiliationNameLang": "en"}]}], "creatorNames": [{"creatorName": "\u8efd\u8fbc, \u52c9", "creatorNameLang": "ja"}, {"creatorName": "KARUKOME, Tsutomu", "creatorNameLang": "en"}]}, {"creatorAffiliations": [{"affiliationNames": [{"affiliationName": "\u6771\u4eac\u5927\u5b66", "affiliationNameLang": "ja"}, {"affiliationName": "The University of Tokyo", "affiliationNameLang": "en"}]}], "creatorNames": [{"creatorName": "\u9234\u6728, \u7950\u7d00", "creatorNameLang": "ja"}, {"creatorName": "SUZUKI, Masanori", "creatorNameLang": "en"}]}, {"creatorAffiliations": [{"affiliationNames": [{"affiliationName": "\u6771\u4eac\u5927\u5b66", "affiliationNameLang": "ja"}, {"affiliationName": "The University of Tokyo", "affiliationNameLang": "en"}]}], "creatorNames": [{"creatorName": "\u9db4\u898b, \u5eb7\u5e78", "creatorNameLang": "ja"}, {"creatorName": "TSURUMI, Yasuyuki", "creatorNameLang": "en"}]}, {"creatorAffiliations": [{"affiliationNames": [{"affiliationName": "\u6771\u4eac\u5927\u5b66", "affiliationNameLang": "ja"}, {"affiliationName": "The University of Tokyo", "affiliationNameLang": "en"}]}], "creatorNames": [{"creatorName": "\u7c73\u9053, \u5b66", "creatorNameLang": "ja"}, {"creatorName": "YONEMICHI, Takashi", "creatorNameLang": "en"}]}, {"creatorAffiliations": [{"affiliationNames": [{"affiliationName": "\u6771\u4eac\u5927\u5b66", "affiliationNameLang": "ja"}, {"affiliationName": "The University of Tokyo", "affiliationNameLang": "en"}]}], "creatorNames": [{"creatorName": "\u585a\u8d8a, \u525b\u53f2", "creatorNameLang": "ja"}, {"creatorName": "TSUKAGOSHI, Takeshi", "creatorNameLang": "en"}]}, {"creatorAffiliations": [{"affiliationNames": [{"affiliationName": "\u6771\u4eac\u5927\u5b66", "affiliationNameLang": "ja"}, {"affiliationName": "The University of Tokyo", "affiliationNameLang": 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{"subitem_title": "Current situation of natural forest resources in the University of Tokyo Chiba Forest", "subitem_title_language": "en"}]}, "item_type_id": "4", "owner": "1", "path": ["27/2466/2467/1667980601103", "9/504/2469/1667980668926"], "permalink_uri": "http://hdl.handle.net/2261/0002005818", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2022-11-09"}, "publish_date": "2022-11-09", "publish_status": "0", "recid": "2005818", "relation": {}, "relation_version_is_last": true, "title": ["\u6771\u4eac\u5927\u5b66\u5343\u8449\u6f14\u7fd2\u6797\u306b\u304a\u3051\u308b\u5929\u7136\u6797\u8cc7\u6e90\u306e\u73fe\u72b6"], "weko_shared_id": -1}