WEKO3
アイテム
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The albedo of pineapple canopy was 0.15 in average except for that near sunrise and sunset hours. This is fairly small value compared to that of other crops. 4. 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熱収支法による沖縄におけるパインアップルの蒸発散量の測定(農業工学科)
http://hdl.handle.net/20.500.12000/4432
http://hdl.handle.net/20.500.12000/4432af9c0263-6706-4d82-95bc-db2d7a6cc52c
| 名前 / ファイル | ライセンス | アクション | |
|---|---|---|---|
KJ00000162441.pdf
|
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| Item type | デフォルトアイテムタイプ（フル）(1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2008-02-14 | |||||||||
| タイトル | ||||||||||
| タイトル | 熱収支法による沖縄におけるパインアップルの蒸発散量の測定(農業工学科) | |||||||||
| 言語 | ja | |||||||||
| 作成者 |
城間, 理夫
× 城間, 理夫
× Shiroma, Michio
|
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| アクセス権 | ||||||||||
| アクセス権 | open access | |||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||
| 内容記述 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | この報告は沖縄におけるパインアップルの蒸発散量について熱収支法による1つの測定実験結果をまとめたものである。測定は琉球大学構内においてライシメーターに栽培してあるスムースカイエン種の株について1972年の夏に約1か月間にわたって行なった。各株は植付後15か月ないし16か月経過していて葉面積指数は4.1∿4.3であり結実期に入ったものであったが, これらの株に対するかん水は常にじゅうぶんに行なわれていた。全測定期間のうちで降雨や強風などがなくて測定条件の比較的によかった9日間の測定結果をまとめると次のとおりである。1.夏期, 結実期に入ったパインアップルの蒸発散量はくもりの日に約1.3mm/day, 晴天の日に約2.7mm/dayで, 全平均は2.1mm/dayであった。2.パインアップルの植被上における昼間の各熱収支項の平均の大きさは, 純放射100に対して潜熱伝達量40,顕熱伝達量56,地中伝熱量4のオーダーであった。3.パインアップルの植被上におけるアルベドは日出, 日入のころを除き平均0.15で他の作物に比べて小さい方であった。4.熱収支法によるとパインアップルの夜間における蒸発散量はほとんどゼロになる。 | |||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | This study was done to estimate the evapotranspiration of pineapple in Okinawa by heat balance method. The measurement was done for about a month in summer 1972 on the grounds of the University of the Ryukyus, Naha, Okinawa, using plants of the Smooth Cayenne variety planted in a lysimeter. The plants were 15 to 16 months old after planting and were at fruiting stage with leaf area index of 4.1 to 4.3. Irrigation to the plants was sufficiently applied during the measurement. From data obtained by the measurement of 9 days of the month when the weather was relatively good and other conditions were also favorable for the measurement, results are summa-rized as follows : 1. The evapotranspiration of pineapple in summer at fruiting stage was about 1.3mm/day on cloudy days, about 2.7mm/day on fair days, and 2.1mm/day in average. 2. The average size of each heat balance term for daytime for pineapple canopy was 40 parts for latent heat, 56 parts for sensible heat, and 4 parts for conduction into soil, out of 100 parts for net radiation for all wave-lengths. 3. The albedo of pineapple canopy was 0.15 in average except for that near sunrise and sunset hours. This is fairly small value compared to that of other crops. 4. The evapotranspiration of pineapple at night may be almost nil according to heat balance method. | |||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | 紀要論文 | |||||||||
| 出版者 | ||||||||||
| 言語 | ja | |||||||||
| 出版者 | 琉球大学農学部 | |||||||||
| 言語 | ||||||||||
| 言語 | jpn | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ | departmental bulletin paper | |||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||
| 出版タイプ | ||||||||||
| 出版タイプ | VoR | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
| 識別子 | ||||||||||
| 識別子 | http://hdl.handle.net/20.500.12000/4432 | |||||||||
| 識別子タイプ | HDL | |||||||||
| 収録物識別子 | ||||||||||
| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 0370-4246 | |||||||||
| 収録物識別子タイプ | NCID | |||||||||
| 収録物識別子 | AN00250548 | |||||||||
| 収録物名 | ||||||||||
| 言語 | ja | |||||||||
| 収録物名 | 琉球大学農学部学術報告 | |||||||||
| 書誌情報 |
号 20, p. 169-190 |
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