{"_buckets": {"deposit": "bbf8c302-ebba-477b-bad1-43ad53012980"}, "_deposit": {"id": "2002785", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "2002785"}, "status": "published"}, "_oai": {"id": "oai:u-ryukyu.repo.nii.ac.jp:02002785", "sets": ["1642837919297", "1642838407312"]}, "author_link": [], "item_1617186331708": {"attribute_name": "Title", "attribute_value_mlt": [{"subitem_1551255647225": "複層林に関する研究 : 1. 上層の林分構造と下層木の成長について(演習林)", "subitem_1551255648112": "ja"}, {"subitem_1551255647225": "A Study on Multiple Storied Forests : 1. Stand structure of an upper storey and growth of lower-storey trees (Forestry Experiment Station)", "subitem_1551255648112": "en"}]}, "item_1617186419668": {"attribute_name": "Creator", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "平田, 永二", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "山盛, 直", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "安里, 練雄", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "新里, 孝和", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "仲地, 本吉", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "Hirata, Eiji", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Yamamori, Naoshi", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Asato, Isao", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Shinzato, Takakazu", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Nakachi, Motoyoshi", "creatorNameLang": "en"}]}]}, "item_1617186476635": {"attribute_name": "Access Rights", "attribute_value_mlt": [{"subitem_1522299639480": "open access", "subitem_1600958577026": "http://purl.org/coar/access_right/c_abf2"}]}, "item_1617186609386": {"attribute_name": "Subject", "attribute_value_mlt": [{"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "複層林"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "林分構造"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "下層木の成長"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "multiple storied forest"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "structure of upper-storey"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "growth of under-storey trees"}]}, "item_1617186626617": {"attribute_name": "Description", "attribute_value_mlt": [{"subitem_description": "上層リュウキュウマツ・他広葉樹, 下層木イスノキ, イヌマキの複層林について実態調査を行い, 上層の林分構造及び下層木の成長の特性を明確にした。1) 上層木のha当たり立木本数は相対幹距約19%で管理されているが, これは, 沖縄県の複層林施業指針の基準に比べるとやや多い本数である。2) 広葉樹の混交割合は林分よって8\u0026acd;89%の範囲を示し(平均46%), 若い林分ほどその割合は増加する傾向にある。また, 広葉樹の樹種構成をみると, 33種の樹種が出現するが, その内イタジイ, イジュ及びタブノキは目立っており, これら3樹種で全本数の57%を占めている。3) 広葉樹はリュウキュウマツよりも低い階層を形成し, リュウキュウマツのおよそ90%の高さで安定する。また, 相対樹高でみると, 広葉樹は40\u0026acd;80%に集中的に分布し, 林内の光環境に大きく影響しているものと思われる。相対樹高を高い順に並べた順位曲線は, ゆるやかなS字曲線となり, 対称型及び非対称型のいずれの曲線式もよく適合している。4) 開空率は14\u0026acd;58%の値をとり(平均30%), ha当たり立木本数及び相対幹距とかなり高い相関を示している。5) 下層木の樹高の平均成長量は, イスノキ6.9\u0026acd;28.7cm, 平均20.1cm, イヌマキ10.3\u0026acd;13.6cm, 平均11.6cmで, イスノキの方が優れている。植栽本数の減少率は平均してイスノキ22%, イヌマキ50%で, その主因は活着不良, 被圧, 下刈の際の切断, イノシシによる被害などであるが, イヌマキの場合は, これらに加えてキオビエダシャクの被害も無視できない。", "subitem_description_type": "Other"}, {"subitem_description": "The stand structure of an upper storey and the growth rate of lower-storey trees were investigated in the multiple storied forest with the mixed stand of Pinus luchuensis and broad leaved trees as the upper-storey trees and Distylium rasemosum and Fagus japonica as the lower-storey trees. 1) Number of trees per hectare is controlled on the condition of about 19% of a relative specing, which is slightly greater than the standard recommended as a guidline for working of multiple storied forests in Okinawa prefecture. 2) Mixture rates of broad leaved trees are found within a range of 8\u0026acd;89% depending on a stand, with an increased rate for a younger stand. 3) Broad leaved trees form a lower storey, which is about 90% of the hight of Pinus luchuensis, and give a significanteffect on the light condition of an environment within the forest. 4) Crown desities are in a range of 14\u0026acd;54% and shpws high correlations with number of trees per hectare and relative specing. 5) Mean annual increments of the height of a lower-storied forest are in a range of 6.9\u0026acd;28.7cm with an average of 20.1cm for Distylium rasemosum and in a range of 10.3\u0026acd;13.6cm with an average of 11.6cm for Fagus japonica, showing a superiority on Distylium rasemosum.", "subitem_description_type": "Other"}, {"subitem_description": "紀要論文", "subitem_description_type": "Other"}]}, "item_1617186643794": {"attribute_name": "Publisher", "attribute_value_mlt": [{"subitem_1522300295150": "ja", "subitem_1522300316516": "琉球大学農学部"}]}, "item_1617186702042": {"attribute_name": "Language", "attribute_value_mlt": [{"subitem_1551255818386": "jpn"}]}, "item_1617186783814": {"attribute_name": "Identifier", "attribute_value_mlt": [{"subitem_identifier_type": "HDL", "subitem_identifier_uri": "http://hdl.handle.net/20.500.12000/3756"}]}, "item_1617186920753": {"attribute_name": "Source Identifier", "attribute_value_mlt": [{"subitem_1522646500366": "ISSN", "subitem_1522646572813": "0370-4246"}, {"subitem_1522646500366": "NCID", "subitem_1522646572813": "AN00250548"}]}, "item_1617186941041": {"attribute_name": "Source Title", "attribute_value_mlt": [{"subitem_1522650068558": "ja", "subitem_1522650091861": "琉球大学農学部学術報告"}, {"subitem_1522650068558": "en", "subitem_1522650091861": "The Science Bulletin of the Faculty of Agriculture. University of the Ryukyus"}]}, "item_1617187056579": {"attribute_name": "Bibliographic Information", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "1995-12-01", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "42", "bibliographicPageEnd": "155", "bibliographicPageStart": "147"}]}, "item_1617258105262": {"attribute_name": "Resource Type", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_1617265215918": {"attribute_name": "Version Type", "attribute_value_mlt": [{"subitem_1522305645492": "VoR", "subitem_1600292170262": "http://purl.org/coar/version/c_970fb48d4fbd8a85"}]}, "item_1617605131499": {"attribute_name": "File", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_access", "download_preview_message": "", "file_order": 0, "filename": "KJ00000161787.pdf", "future_date_message": "", "is_thumbnail": false, "mimetype": "", "size": 0, "url": {"objectType": "fulltext", "url": "https://u-ryukyu.repo.nii.ac.jp/record/2002785/files/KJ00000161787.pdf"}, "version_id": "47ced6c5-4375-455d-9a69-ebbba2dc3088"}]}, "item_title": "複層林に関する研究 : 1. 上層の林分構造と下層木の成長について(演習林)", "item_type_id": "15", "owner": "1", "path": ["1642837919297", "1642838407312"], "permalink_uri": "http://hdl.handle.net/20.500.12000/3756", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2008-02-14"}, "publish_date": "2008-02-14", "publish_status": "0", "recid": "2002785", "relation": {}, "relation_version_is_last": true, "title": ["複層林に関する研究 : 1. 上層の林分構造と下層木の成長について(演習林)"], "weko_shared_id": -1}
複層林に関する研究 : 1. 上層の林分構造と下層木の成長について(演習林)
http://hdl.handle.net/20.500.12000/3756
http://hdl.handle.net/20.500.12000/3756