{"@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/1390006585527957504.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.11275/turfgrass.46.1_51"}}],"dc:title":[{"@language":"en","@value":"Estimating evapotranspiration using an inexpensive pan"},{"@language":"ja","@value":"簡易蒸発皿で蒸発散量を予測"}],"dc:language":"ja","description":[{"type":"abstract","notation":[{"@language":"en","@value":"<p>An inexpensive pan was used to estimate ASCE evapotranspiration (ET<sub>O</sub>). Daily water evaporation from a pan (E<sub>Pan</sub>) and ET<sub>O</sub> were measured during spring and summer. The spring and summer data were analyzed separately and together. The correlations of E<sub>Pan</sub> and ET<sub>O</sub> were higher than 0.63, and the intercept from the combined data was −0.54 mm, which is very small considering the turfgrass irrigation. Because of the small value, we ignored the intersection in order to simplify the estimating equation, giving a pan factor (Kp) of 0.89. Considering this, the equations for estimating evapotranspiration using an inexpensive pan were ET<sub>C</sub>=0.53×E<sub>Pan</sub> for warm-season turfgrass, and ET<sub>C</sub>=0.71×E<sub>Pan</sub> for cool season turfgrass. If a water balance checkbook is to be created using only a pan, rainfall measurements (Rain) are also necessary. A very high correlation of 0.99 existed between the precipitated volume and the water level in the pan. The equation for estimating rainfall was Rain=0.94×pan water level+0.96. Using this method, it would be possible to estimate the water budget with only an inexpensive pan.</p>"},{"@language":"ja","@value":"ホームセンターなどで購入可能な安価なトタン製の簡易蒸発皿を利用して, 気象観測機で予測するET<sub>O</sub>を予測した。E<sub>Pan</sub>とET<sub>O</sub>の相関はr＝0.67であり, 高い相関が見られた。予測式の切片は−0.54と小さいので, 予測式を単純化させるために, 切片＝0とし, 傾きのみを変換係数としてK<sub>p</sub>＝0.78とした。結果, 簡易蒸発皿を利用してのET<sub>C</sub>の予測式は, 暖地型芝草ET<sub>C</sub>＝0.53×E<sub>Pan</sub>, 寒地型芝草ET<sub>C</sub>＝0.71×E<sub>Pan</sub>となった。また, VPDとET<sub>O</sub>の相関はr＝0.78であった。切片は, −0.51mmであったが, 予測式を単純化させるためにも切片＝0とし, K<sub>p</sub>＝6.09とした。よって, VPDから芝草のET<sub>C</sub>を予測するには, 暖地型芝草ET<sub>C</sub>＝3.7×VPD, 寒地型芝草ET<sub>C</sub>＝4.9×VPDとなった。土壌水分の収支を記録する場合は, 雨量の測定も必要であり, 簡易蒸発皿の水位の増加量と雨量には高い相関関係 (r＝0.99) があり, 予測式は, 雨量＝0.94×簡易蒸発皿増加水位＋0.96となった。よって, 簡易蒸発皿の使用により, 土壌水分の帳簿を作成することが可能だと考えられた。"}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1420003854339560832","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"20827159"},{"@type":"NRID","@value":"1000020827159"},{"@type":"NRID","@value":"9000010737848"},{"@type":"NRID","@value":"9000303921278"},{"@type":"NRID","@value":"9000344841869"},{"@type":"NRID","@value":"9000403835728"},{"@type":"NRID","@value":"9000412159644"},{"@type":"NRID","@value":"9000414217549"},{"@type":"NRID","@value":"9000402128107"},{"@type":"NRID","@value":"9000398821515"},{"@type":"NRID","@value":"9000402128061"},{"@type":"NRID","@value":"9000389967856"},{"@type":"NRID","@value":"9000397824336"},{"@type":"NRID","@value":"9000412159626"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/Yoshi_Ikemura"}],"foaf:name":[{"@language":"en","@value":"Ikemura Yoshiaki"},{"@language":"ja","@value":"池村 嘉晃"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"静岡県農林技術研究所 (静岡県芝草研究所)"}]},{"@id":"https://cir.nii.ac.jp/crid/1410006585527957504","@type":"Researcher","foaf:name":[{"@language":"en","@value":"Hatsukade Masayoshi"},{"@language":"ja","@value":"廿日出 正美"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"静岡県農林技術研究所 (静岡県芝草研究所)"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"02858800"},{"@type":"LISSN","@value":"02858800"},{"@type":"EISSN","@value":"18844022"}],"prism:publicationName":[{"@language":"en","@value":"Journal of Japanese Society of Turfgrass Science"},{"@language":"ja","@value":"芝草研究"},{"@language":"en","@value":"Journal of Japanese Society of Turfgrass Sciense"},{"@language":"ja","@value":"芝草研究"}],"dc:publisher":[{"@language":"en","@value":"Japanese Society of Turfgrass Science"},{"@language":"ja","@value":"日本芝草学会"}],"prism:publicationDate":"2017-10-31","prism:volume":"46","prism:number":"1","prism:startingPage":"51","prism:endingPage":"56"},"availableAt":"2017-10-31","dataSourceIdentifier":[{"@type":"JALC","@value":"oai:japanlinkcenter.org:2008441102"}]}