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This paper presents the results about dominant tree species, the relative yield index of Japanese cedar plantations, and monitoring of pine wilt disease and oak wilt disease. The dominant tree species of each plot was determined by a basal area rate. The relative yield index was calculated by the upper layer tree height estimated from the mean diameter of each plot. Occurrence of pine wilt disease was checked and the number of damaged pine trees was represented by each region or altitude zone. About oak wilt disease, the number of oak species was counted and compared between 1^\u003cst\u003e and 2^\u003cnd\u003e periods. The results showed that the dominant tree species in Niigata Prefecture were Cryptomeria japonica, Pinus densiflora, Quercus serrata, Quercus crispula Blume, Acer amoenum var. matsumurae, Fagus crenata. The relative yield index of Japanese cedar plantation indicated a peak at 0.6-0.7 in the 1^\u003cst\u003e period and 0.7-0.8 in the 2^\u003cnd\u003e period. The area suffering pine wilt disease shifted to the Chuetsu region from the Joetsu region and to the high altitude zone from low altitude zone. The number of oak species decreased across the whole region of Niigata prefecture. In the altitude class, the number of oak species declined until 600m a.s.l. In this paper, some of the actual conditions of the forests in Niigata Prefecture have been understood with NFI data.", "subitem_description_type": "Abstract"}]}, "item_7_full_name_3": {"attribute_name": "\u8457\u8005\u5225\u540d", "attribute_value_mlt": [{"nameIdentifiers": [{"nameIdentifier": "162734", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Chigira, Yuji"}]}, {"nameIdentifiers": [{"nameIdentifier": "162735", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Murakami, Takuhiko"}]}]}, "item_7_publisher_7": {"attribute_name": "\u51fa\u7248\u8005", "attribute_value_mlt": [{"subitem_publisher": "\u65b0\u6f5f\u5927\u5b66\u8fb2\u5b66\u90e8"}]}, "item_7_select_19": {"attribute_name": "\u8457\u8005\u7248\u30d5\u30e9\u30b0", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_7_source_id_11": {"attribute_name": "\u66f8\u8a8c\u30ec\u30b3\u30fc\u30c9ID", "attribute_value_mlt": [{"subitem_source_identifier": "AN00183393", "subitem_source_identifier_type": "NCID"}]}, "item_7_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "03858634", "subitem_source_identifier_type": "ISSN"}]}, "item_creator": {"attribute_name": "\u8457\u8005", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "\u5343\u6728\u826f, \u96c4\u6cbb"}], "nameIdentifiers": [{"nameIdentifier": "162732", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "\u6751\u4e0a, \u62d3\u5f66"}], "nameIdentifiers": [{"nameIdentifier": "162733", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "\u30d5\u30a1\u30a4\u30eb\u60c5\u5831", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2019-08-20"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "65(2)_187-193.pdf", "filesize": [{"value": "797.7 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 797700.0, "url": {"label": "65(2)_187-193.pdf", "url": "https://niigata-u.repo.nii.ac.jp/record/28310/files/65(2)_187-193.pdf"}, "version_id": "0411ef94-9722-4592-86e3-2f13b99ee8fe"}]}, "item_keyword": {"attribute_name": "\u30ad\u30fc\u30ef\u30fc\u30c9", "attribute_value_mlt": [{"subitem_subject": "\u68ee\u6797\u8cc7\u6e90\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u8abf\u67fb", "subitem_subject_scheme": "Other"}, {"subitem_subject": "\u512a\u5360\u6a39\u7a2e", "subitem_subject_scheme": "Other"}, {"subitem_subject": "\u53ce\u91cf\u6bd4\u6570", "subitem_subject_scheme": "Other"}, {"subitem_subject": "\u30de\u30c4\u67af\u308c", "subitem_subject_scheme": "Other"}, {"subitem_subject": "\u30ca\u30e9\u67af\u308c", "subitem_subject_scheme": "Other"}, {"subitem_subject": "National Forest Inventory data of Japan", "subitem_subject_scheme": "Other"}, {"subitem_subject": "dominant species", "subitem_subject_scheme": "Other"}, {"subitem_subject": "relative yield index", "subitem_subject_scheme": "Other"}, {"subitem_subject": "pine wilt disease", "subitem_subject_scheme": "Other"}, {"subitem_subject": "oak wilt disease", "subitem_subject_scheme": "Other"}]}, "item_language": {"attribute_name": "\u8a00\u8a9e", "attribute_value_mlt": [{"subitem_language": "jpn"}]}, "item_resource_type": {"attribute_name": "\u8cc7\u6e90\u30bf\u30a4\u30d7", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "\u68ee\u6797\u8cc7\u6e90\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u8abf\u67fb\u30c7\u30fc\u30bf\u3092\u7528\u3044\u305f\u65b0\u6f5f\u770c\u306e\u68ee\u6797\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0", "item_titles": {"attribute_name": "\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_title": "\u68ee\u6797\u8cc7\u6e90\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u8abf\u67fb\u30c7\u30fc\u30bf\u3092\u7528\u3044\u305f\u65b0\u6f5f\u770c\u306e\u68ee\u6797\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0"}, {"subitem_title": "\u68ee\u6797\u8cc7\u6e90\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u8abf\u67fb\u30c7\u30fc\u30bf\u3092\u7528\u3044\u305f\u65b0\u6f5f\u770c\u306e\u68ee\u6797\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0", "subitem_title_language": "en"}]}, "item_type_id": "7", "owner": "1", "path": ["453/456", "485/872/1583/1591"], "permalink_uri": "http://hdl.handle.net/10191/22567", "pubdate": {"attribute_name": "\u516c\u958b\u65e5", "attribute_value": "2013-05-29"}, "publish_date": "2013-05-29", "publish_status": "0", "recid": "28310", "relation": {}, "relation_version_is_last": true, "title": ["\u68ee\u6797\u8cc7\u6e90\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u8abf\u67fb\u30c7\u30fc\u30bf\u3092\u7528\u3044\u305f\u65b0\u6f5f\u770c\u306e\u68ee\u6797\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0"], "weko_shared_id": null}