{"_buckets": {"deposit": "7a65ed8f-10c1-46a8-a277-8c7b88761b2e"}, "_deposit": {"id": "2003516", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "2003516"}, "status": "published"}, "_oai": {"id": "oai:u-ryukyu.repo.nii.ac.jp:02003516", "sets": ["1642837906897", "1642838407312"]}, "author_link": [], "item_1617186331708": {"attribute_name": "Title", "attribute_value_mlt": [{"subitem_1551255647225": "土壌侵食に関与する 2,3 の降雨特性について(沖縄における農地保全の基礎的研究(第 1 報))(農業工学科)", "subitem_1551255648112": "ja"}, {"subitem_1551255647225": "On the properties of rainfall influenced on soil erosion (Fundamental studies on farmland conservation in okinawa I.) (Department of Agricultural Engineering)", "subitem_1551255648112": "en"}]}, "item_1617186419668": {"attribute_name": "Creator", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "翁長, 謙良", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "Onaga, Kenryo", "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_1617186626617": {"attribute_name": "Description", "attribute_value_mlt": [{"subitem_description": "1.気象資料は主として1955年1月から1967年12月までの琉球気象庁発行の気象要覧, 那覇の気候表(1963年発行)および沖縄群島の気候表(1964年発行)をもとに作成した。2.第1表の月間降水量の平均値の中で( )内は欠測の値を除いた平均値であり, 他の地点と比較して大差のある月は平均値とかなり差のある雨量の欠測に起因するものである。また与那覇岳の雨量が極端に大きいのは標高498mで観測されており, 山岳特有の気象によるものと思われる。3.第4表の10分間確率降雨強度において各月の平均値と2年確率の値が殆んど同じ値を示しているのは, 各月のその年における降雨強度の最大値のばらつきが正規分布するとの仮定で計算され, かつ資料の分散が比較的よかったことによる。4.限界降雨強度は土地の傾斜や土壌の性質によって異なるが, 日本各地の実験結果によると, 傾斜15°で2mm\u0026acd;3mm/10min.が限界降雨強度である。筆者が人工降雨により, 国頭マージ土壌(粘土)について実験した結果, 傾斜7°の土槽箱で含水比が32%のとき2.5mm\u0026acd;3.5mm/10min.でrunoffを見た。沖繩においても2mm\u0026acd;3mmを限界降雨強度としても差し支えないと思われる。5.図表に掲載されてない北部の他の観測所で, 与那や奥などは伊豆味と同様, 年間降水量が2500mm以上となっており, 地形因子と相まって北部農耕地の傾斜地は中南部のそれらより, 土壌侵食の危険性が大であるといえる。", "subitem_description_type": "Other"}, {"subitem_description": "The characteristics of rainfall influencing soil erosion were studied. The results obtained from the data of precipitation on Okinawa are as follows : 1. The average annual precipitation in the Ryukyu Islands is slightly above 2,000 millimeters, and it is as much as that at Kochi and Wakayama, Japan. 2. Rainfall for each month at Naha and in the Northern part of Okinawa is generally estimated at above 100 millimeters. 3. The annual precipitation as well as its monthly and every 10-day amount on Okinawa is not favorable for the soil conservation. The maximum monthly precipitation as well as ten minutes rainfall intensity is received in June, and the next to these monthly rainfall and 10-minute intensity in August. 4. Dangerous rainfall (3mm/10min) frequency affecting soil erosion is extremely high compared to that at Takamatsu and Hiroshima, Japan. 5. In May, June and August, two or more days a month are expected to have daily rainfall over 30 millimeters. Therefore, soil erosion is liable to take place in these three months.", "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/20.500.12000/4548"}]}, "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": "1969-10-01", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "16", "bibliographicPageEnd": "187", "bibliographicPageStart": "180"}]}, "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": "KJ00000162311.pdf", "future_date_message": "", "is_thumbnail": false, "mimetype": "", "size": 0, "url": {"objectType": "fulltext", "url": "https://u-ryukyu.repo.nii.ac.jp/record/2003516/files/KJ00000162311.pdf"}, "version_id": "c3cb97d9-4cc6-4462-85e2-82c8673614df"}]}, "item_title": "土壌侵食に関与する 2,3 の降雨特性について(沖縄における農地保全の基礎的研究(第 1 報))(農業工学科)", "item_type_id": "15", "owner": "1", "path": ["1642837906897", "1642838407312"], "permalink_uri": "http://hdl.handle.net/20.500.12000/4548", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2008-02-14"}, "publish_date": "2008-02-14", "publish_status": "0", "recid": "2003516", "relation": {}, "relation_version_is_last": true, "title": ["土壌侵食に関与する 2,3 の降雨特性について(沖縄における農地保全の基礎的研究(第 1 報))(農業工学科)"], "weko_shared_id": -1}