{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1390282679415754368.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.3178/jjshwr.18.167"}},{"identifier":{"@type":"NAID","@value":"130004445940"}}],"dc:title":[{"@language":"en","@value":"Water Quality and Loads of Rivers during Puddling Transplanting Period"},{"@language":"ja","@value":"代かき・田植期の河川水質と負荷量"}],"dc:language":"ja","description":[{"type":"abstract","notation":[{"@language":"en","@value":"It is important to understand effluent loads from river basins and to plan the water quality improvement and the runoff load reduction based on each watershed. In this study, Uso River with mainly agricultural loads and Horyu River with mainly industrial loads are made applicable for investigation among the Lake Biwa inflow rivers. Water quality and quantity of two rivers are measured. <br>In case of excepting runoff after rainfall, the mean values of the T-N, T-P, T-COD and SS concentration and the effluent loads during a puddling transplanting period are higher than mean values of those during the other period. T-test for the mean values shows the difference with a significant level of 1 or 5% in almost of water quality and effluent loads. On the other hand, the mean values of runoff after rainfall except a puddling transplanting period are higher than those during a puddling transplanting period in both watersheds. <br>Although muddy water by puddling and transplanting is generally regarded as the reason of the water problem in the country area. But, it became clear that the tendency of runoff after rainfall except a puddling transplanting period is higher concentration and runoff loads against the puddling transplanting period. Thus, the countermeasures of the water quality improvement and the load reduction of runoff after rainfall are more important than those of the puddling and transplanting period."},{"@language":"ja","@value":"河川の水質改善および負荷量削減を図るためには，河川ごとの濃度や流出負荷量の特性を把握し，各流域特性に基づいた対策を立てる必要がある．本研究では，琵琶湖流入河川のうち農業系負荷が大きな割合を占める宇曽川と，工業系負荷の割合が大きい法竜川を調査対象として水質および流量を測定し，代かき田植期とそれ以外の期間との差異を，晴天時および降雨時について検討した．<br>晴天時については，代かき田植期のT-N，T-P，T-COD，SS 濃度および負荷量はそれ以外の時期よりも高く，平均値の差のt検定で有意な差を示すものが多かった．一方，降雨時においては，代かき田植期の方がそれ以外の期間よりも低い傾向を示した．<br>琵琶湖集水域では代かき・田植期の濁水が問題となっているが，それ以外の期間中の降雨時に，はるかに多くの流出負荷量が観測された．したがって水系の水質改善，負荷量削減を図る際には，代かき田植期のみならず降雨時における対策を重点的に講じることが必要である."}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410009222263389569","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000257816817"}],"foaf:name":[{"@language":"en","@value":"WAKAI Taisuke"},{"@language":"ja","@value":"若井 泰佑"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Graduate School of Environmental Science, The University of Shiga Prefecture"},{"@language":"ja","@value":"滋賀県立大学大学院環境科学研究科"}]},{"@id":"https://cir.nii.ac.jp/crid/1030003658332491008","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"30074082"},{"@type":"NRID","@value":"1000030074082"},{"@type":"NRID","@value":"9000256443073"},{"@type":"NRID","@value":"9000256445386"},{"@type":"NRID","@value":"9000256649081"},{"@type":"NRID","@value":"9000008509962"},{"@type":"NRID","@value":"9000256651002"},{"@type":"NRID","@value":"9000256653750"},{"@type":"NRID","@value":"9000255898024"},{"@type":"NRID","@value":"9000008511744"},{"@type":"NRID","@value":"9000256653159"},{"@type":"NRID","@value":"9000256443846"},{"@type":"NRID","@value":"9000283620740"},{"@type":"NRID","@value":"9000007767012"},{"@type":"NRID","@value":"9000256447100"},{"@type":"NRID","@value":"9000256652650"},{"@type":"NRID","@value":"9000256652045"},{"@type":"NRID","@value":"9000257816818"},{"@type":"NRID","@value":"9000255898835"},{"@type":"NRID","@value":"9000256476204"},{"@type":"NRID","@value":"9000256652514"},{"@type":"NRID","@value":"9000256653753"},{"@type":"NRID","@value":"9000256443301"},{"@type":"NRID","@value":"9000256446314"},{"@type":"NRID","@value":"9000255898806"},{"@type":"NRID","@value":"9000255833950"},{"@type":"NRID","@value":"9000256440411"},{"@type":"NRID","@value":"9000256440414"},{"@type":"NRID","@value":"9000256445557"},{"@type":"NRID","@value":"9000256444920"},{"@type":"NRID","@value":"9000256653137"},{"@type":"NRID","@value":"9000256651001"},{"@type":"NRID","@value":"9000257816811"}],"foaf:name":[{"@language":"en","@value":"KANEKI Ryoichi"},{"@language":"ja","@value":"金木 亮一"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"滋賀県立大学環境科学部"},{"@language":"en","@value":"School of Environmental Science, The University of Shiga Prefecture"}]},{"@id":"https://cir.nii.ac.jp/crid/1410009222263389568","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000257816819"}],"foaf:name":[{"@language":"en","@value":"ITAKURA Yosito"},{"@language":"ja","@value":"板倉 啓人"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Graduate School of Environmental Science, The University of Shiga Prefecture"},{"@language":"ja","@value":"滋賀県立大学大学院環境科学研究科"}]},{"@id":"https://cir.nii.ac.jp/crid/1410009222263389570","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000257816820"}],"foaf:name":[{"@language":"en","@value":"BANNO Misato"},{"@language":"ja","@value":"坂野 美里"}],"jpcoar:affiliationName":[{"@language":"en","@value":"School of Environmental Science, The University of Shiga Prefecture"},{"@language":"ja","@value":"滋賀県立大学環境科学部"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"09151389"},{"@type":"EISSN","@value":"13492853"}],"prism:publicationName":[{"@language":"en","@value":"JOURNAL OF JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES"},{"@language":"ja","@value":"水文・水資源学会誌"},{"@language":"en","@value":"JOURNAL OF JAPAN SOCIETY OF HYDROLOGY & WATER RESOURCES"},{"@language":"en","@value":"JOURNAL OF JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES"},{"@language":"en","@value":"J. Japan Soc. Hydrol. and Water Resour."},{"@language":"ja","@value":"水文・水資源学会誌"},{"@language":"en","@value":"Journal of Japan Society of Hydrology and Water Resources"}],"dc:publisher":[{"@language":"en","@value":"THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES"},{"@language":"ja","@value":"水文・水資源学会"}],"prism:publicationDate":"2005","prism:volume":"18","prism:number":"2","prism:startingPage":"167","prism:endingPage":"176"},"reviewed":"false","availableAt":"2005","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=Water%20quality%20of%20rivers","dc:title":"Water quality of rivers"},{"@id":"https://cir.nii.ac.jp/all?q=Effluent%20load","dc:title":"Effluent load"},{"@id":"https://cir.nii.ac.jp/all?q=Runoff%20after%20rainfall","dc:title":"Runoff after rainfall"},{"@id":"https://cir.nii.ac.jp/all?q=Puddling%20transplanting%20period","dc:title":"Puddling transplanting period"},{"@id":"https://cir.nii.ac.jp/all?q=%E6%B2%B3%E5%B7%9D%E6%B0%B4%E8%B3%AA","dc:title":"河川水質"},{"@id":"https://cir.nii.ac.jp/all?q=%E6%B5%81%E5%87%BA%E8%B2%A0%E8%8D%B7%E9%87%8F","dc:title":"流出負荷量"},{"@id":"https://cir.nii.ac.jp/all?q=%E9%99%8D%E9%9B%A8%E6%B5%81%E5%87%BA","dc:title":"降雨流出"},{"@id":"https://cir.nii.ac.jp/all?q=%E4%BB%A3%E3%81%8B%E3%81%8D%E3%83%BB%E7%94%B0%E6%A4%8D%E6%9C%9F","dc:title":"代かき・田植期"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1051412328467619712","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Effect of the concentration of NaCl and cylinder height on the sedimentation of flocculated suspension of Na-montmorillonite in the semi-dilute regime"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004232272284544","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Measurement and estimation of radiocesium discharge rate from paddy field during land preparation and mid-summer drainage"}]},{"@id":"https://cir.nii.ac.jp/crid/1360584340716185088","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Investigating Sedimentation Behavior of Montmorillonite Flocs between Flat Plates in a 2D System Using Image Analysis"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001205350912768","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"RUNOFF PROPERTIES OF SS, TN, AND TP AND POSSIBILITY OF THEIR CONTROL BY FLOCCULATION IN AGRICULTURAL AREAS IN IWATE"},{"@language":"ja","@value":"岩手県の農業域小河川におけるSS,TN,TPの流出特性と凝集による制御の可能性"}]},{"@id":"https://cir.nii.ac.jp/crid/1390870529360242176","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"ja","@value":"猪苗代湖流域における水田灌漑の影響が大きい集水域の負荷流出特性と休耕田による代かき期非特定汚染源負荷削減量の推定"},{"@language":"en","@value":"Runoff Characteristics of Nutrient Loads from Catchment Areas Greatly Influenced by Paddy Field Irrigation in Lake Inawashiro Basin and the Estimation of Removal Load of Pollutants from Nonpoint Source During Soil Puddling Using a Fallow Field"},{"@language":"ja-Kana","@value":"イナワシロコ リュウイキ ニ オケル スイデンカンガイ ノ エイキョウ ガ オオキイ シュウスイイキ ノ フカ リュウシュツ トクセイ ト キュウコウデン ニ ヨル シロカキ キ ヒトクテイ オセン ゲン フカ サクゲンリョウ ノ スイテイ"}]}],"dataSourceIdentifier":[{"@type":"JALC","@value":"oai:japanlinkcenter.org:0024854352"},{"@type":"CROSSREF","@value":"10.3178/jjshwr.18.167"},{"@type":"CIA","@value":"130004445940"},{"@type":"CROSSREF","@value":"10.2208/jscejhe.67.i_1285_references_DOI_403SnnJIw11fejflCSnD244xDiP"},{"@type":"CROSSREF","@value":"10.3390/pr12020295_references_DOI_403SnnJIw11fejflCSnD244xDiP"},{"@type":"CROSSREF","@value":"10.2521/jswtb.62.1_references_DOI_403SnnJIw11fejflCSnD244xDiP"},{"@type":"CROSSREF","@value":"10.1016/j.jenvrad.2016.01.013_references_DOI_403SnnJIw11fejflCSnD244xDiP"},{"@type":"CROSSREF","@value":"10.1007/s10333-019-00783-6_references_DOI_403SnnJIw11fejflCSnD244xDiP"}]}