On Evaluation for Effectiveness of Reducing River Discharge with the Irrigation Tank System Lied on a Plain

平原灌溉水池系统减流效果评价

• 批准号: 14560200
• 负责人: KAKUDO Hirofumi
• 金额: $ 2.24万
• 依托单位: Kagawa University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14560200/
• 关键词: Irrigation tank; Storage Function; Restraining river discharge; Storage Operation; Water uses with customs; 貯留機能

Effectiveness to reduce runoff in a river basin containing irrigation tank systems laid on a plain was evaluated. The Shimizu River (CA=2.8km^2, L=2.5km) as a model on this research contains 14 irrigation tanks and their related channels. Surface area of all of the irrigation tank systems including related channels accounts for 23.7 percent of the catchments area.For the evaluation of effectiveness of irrigation tank systems, scenarios were considered as follows ;- both present irrigation tank systems and present water management for irrigation will be sustained in the future (Case A),- both all of the irrigation tank systems and their storage function will be abandoned (Case B),- present irrigation tank systems will be sustained, besides operation and management of the systems will be modified to reduce runoff in a river basin further (Case C).Based on precipitation data at Typhoon 15 in August and Typhoon 23 in October, 2005, runoff model of The Shimizu River was run by Kinematic Wave Method. For the Case B, temporary storage of rainfall upon the basin is not taken into account, because of loss of capacity on the irrigation tank systems.Although calculated peak discharge was 9.1m^3/s at Typhoon 15 and 10.1m^3/s at Typhoon 23 respectively on the Case B, calculated peak discharge was 4.2m^3/s at Typhoon 15 and 5.4m^3/s at Typhoon 23 respectively on the Case A. These results show that an effect on the Case A caused an about 46 through 53 percent decrease in peak discharge under a condition of precipitation on this research.For strengthening effectiveness to reduce runoff discharge such as the Case C, it was pointed out that selection of a suitable irrigation tank system taking into consideration arrangement and storage capacity would be important.

对平原上设有灌溉水箱系统的河流流域减少径流的有效性进行了评估。清水河（CA=2.8km^2，L=2.5km）作为本研究的模型，包含 14 个灌溉水池及其相关渠道。所有灌溉水箱系统（包括相关渠道）的表面积占集水区面积的 23.7%。为了评估灌溉水箱系统的有效性，考虑了以下情景；- 现有的灌溉水箱系统和现有的灌溉水管理都将未来将继续维持（情况A），-所有灌溉水箱系统及其储存功能都将被放弃（情况B），-现有灌溉水箱系统将继续维持，此外系统的运行和管理将进行修改进一步减少流域径流(案例C).根据2005年8月15号台风和2005年10月23号台风的降水数据，采用运动波法建立了清水河径流模型。对于案例 B，由于灌溉水箱系统容量损失，未考虑流域临时储存降雨。尽管计算得出的台风 15 时的峰值流量为 9.1m^3/s，台风 15 时的峰值流量为 10.1m^3/s案例 B 分别在台风 23 号时，计算得出台风 15 号时峰值流量为 4.2m^3/s，台风 23 号时峰值流量为 5.4m^3/s A. 这些结果表明，在本研究中，在降水条件下，案例 A 的影响导致峰值流量减少了约 46% 至 53%。为了加强案例 C 等径流流量的减少效果，有人指出：考虑到布置和存储容量，选择合适的灌溉水箱系统非常重要。

项目成果

溜池を水源として有する農業水利団体の渇水対策

以水库为水源的农业灌溉单位的干旱对策

• 发表时间: 2003
• 期刊: 平成15年度農業土木学会大会講演会講演要旨集
• 作者: 廣川 一男;角道弘文
• 通讯作者: 角道弘文

生物生息空間としてのため池環境要素の抽出

作为生物栖息地的水库环境要素的提取

• 发表时间: 2004
• 期刊: 2004年度農村計画学会学術研究発表会要旨集
• 作者: 角道弘文;日下部貴規
• 通讯作者: 日下部貴規

On Impact Environment of a Basin with Irrigation Tanks on Habitat of Odonata Imagines

灌溉水池盆地对蜻蜓栖息地的影响研究

• 发表时间: 2005
• 期刊: Proceedings of Annual Meeting of Japanese Society of Irrigation, Drainage and Reclamation Engineering (in printing)
• 作者: Hirofumi KAKUDO;Mika NISHIYAMA;Takeshi TERASHIMA;Hiroyuki OTA
• 通讯作者: Hiroyuki OTA

アンケート調査によるため池の現状及び課題の認識評価について

通过问卷调查评估水库现状和问题意识

• 发表时间: 2002
• 期刊: 平成14年度農業土木学会大会講演会講演要旨集
• 作者: 角道弘文;森下一男;白木渡;守田秀則
• 通讯作者: 守田秀則

On Evaluation of Cognition of Actual Condition and Subjects of Agricultural Tanks by Questionnaire Survey.

问卷调查评价农用坦克现状及主体认知度。

• 发表时间: 2002
• 期刊: Proceedings of Annual Meeting of Japanese Society of Irrigation, Drainage and Reclamation Engineering
• 作者: Hirofumi KAKUDO;Kazuo MORISHITA;Wataru SHIRAKI;Hidenori MORITA
• 通讯作者: Hidenori MORITA