Effect of slope on surface drainage in converted rice paddy

Yoshiyuki Shinogi, Yutaka Kanri, Yuichi Hirose, Kento Inoue

研究成果: 会議への寄与タイプ論文

抄録

Due to the recent regulation of rice production in Japan, it has become necessary to convert rice paddy to other field crop production. To achieve this, drainage conditions, especially for surface drainage, must be improved. We proposed the introduction of a slight slope to improve surface drainage, but the optimal slope must still be determined in order to prevent soil erosion caused by excessive slope, as well as increased cost. In Japan, a 0.1% slope has recently come into widespread use and, therefore, the impact to surface drainage must be quantified. In this report, observations were carried out to quantify the impact of a 0.1% slope for converted rice paddy, and the following results were obtained:. 1. An approximate 0.1% slope enables improvement of 46% of the soil surface saturation area compared with that of flat conditions about 10 hours after inundation. 2. Inundation water remains on a flat field, while that on a sloped field moves downward toward the slope end. These are important factors on which to base the introduction of a slight slope to rice paddy for surface drainage improvement. However, the optimal slope should be decided from various perspectives including engineering, agronomy and economics.

元の言語英語
ページ3387-3396
ページ数10
出版物ステータス出版済み - 12 1 2004
イベントASAE Annual International Meeting 2004 - Ottawa, ON, カナダ
継続期間: 8 1 20048 4 2004

その他

その他ASAE Annual International Meeting 2004
カナダ
Ottawa, ON
期間8/1/048/4/04

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Drainage
Agronomy
Soils
Crops
Erosion
Economics
Costs
Water

All Science Journal Classification (ASJC) codes

  • Engineering(all)

これを引用

Shinogi, Y., Kanri, Y., Hirose, Y., & Inoue, K. (2004). Effect of slope on surface drainage in converted rice paddy. 3387-3396. 論文発表場所 ASAE Annual International Meeting 2004, Ottawa, ON, カナダ.

Effect of slope on surface drainage in converted rice paddy. / Shinogi, Yoshiyuki; Kanri, Yutaka; Hirose, Yuichi; Inoue, Kento.

2004. 3387-3396 論文発表場所 ASAE Annual International Meeting 2004, Ottawa, ON, カナダ.

研究成果: 会議への寄与タイプ論文

Shinogi, Y, Kanri, Y, Hirose, Y & Inoue, K 2004, 'Effect of slope on surface drainage in converted rice paddy' 論文発表場所 ASAE Annual International Meeting 2004, Ottawa, ON, カナダ, 8/1/04 - 8/4/04, pp. 3387-3396.
Shinogi Y, Kanri Y, Hirose Y, Inoue K. Effect of slope on surface drainage in converted rice paddy. 2004. 論文発表場所 ASAE Annual International Meeting 2004, Ottawa, ON, カナダ.
Shinogi, Yoshiyuki ; Kanri, Yutaka ; Hirose, Yuichi ; Inoue, Kento. / Effect of slope on surface drainage in converted rice paddy. 論文発表場所 ASAE Annual International Meeting 2004, Ottawa, ON, カナダ.10 p.
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