Research on Effective Installation of Subsurface Drain and the Maintenance of its Function

地下排水沟有效安装及其功能维护研究

• 批准号: 14360137
• 负责人: INOUE Takashi
• 金额: $ 9.66万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14360137/
• 关键词: Subsurface drain; Drainage improvement; Functional assessment; Farm field; Agricultural land; Upland field; Soil permeability; 排水

Subsurface drainage is one of the important technologies for the improvement of field condition for agricultural productivity. Simple and objective method for evaluation of efficiency of subsurface drain is required. Inoue and Yamamoto investigated the problem of pipe drain from the viewpoint of its condition of installation by analyzing the concavity and convexity of pipe alignment, and proposed the use of deviation from the configured alignment and the flexion rate of pipe for the pipe condition. The sustainability of drainage function was also verified by continuous measurement of groundwater level and pipe discharge. It is proved that the drainage capability gradually declines with the age.Kashiwagi made investigation on dairy grass productivity and the effect of subsurface drain. Nakamura also made long-term survey on groundwater level and the efficiency of subsurface drain in the paddy-converted upland field. He especially made precise survey on soil permeability condition between two underdrain pipes.Kitagawa developed new technology of 'Cutting drain method' for the restoration of drainage function of the field. This method is applicable not only for peat soil but also for Andosol and gray upland soil. It is a kind of mole drain but has more durability on decay, and cheap to construct. He also developed filter material to avoid clogging of the drainage pipe in acid soil such as mudflow region in downstream of Mt.Tokachi-dake.

地下排水是改善农业生产力现场状况的重要技术之一。需要简单而客观的方法来评估地下排水效率。 Inoue和Yamamoto通过分析管道对齐的凹陷和凸度，从其安装条件的角度研究了管道排水的问题，并提出了与管道条件的配置对齐和管道屈曲率相偏离的偏差。通过连续测量地下水水平和管道排放，排水功能的可持续性也得到了验证。事实证明，随着年龄的增长，排水能力逐渐下降。卡西瓦格（Kashiwagi）对奶制草生产率和地下排水的影响进行了调查。中村还对地下水水平和地下流失的高地田地的地下流失效率进行了长期调查。他特别对两个不足道管道之间的土壤通透性条件进行了精确的调查。川川开发了新的“切割排水方法”技术，以恢复该场的排水功能。该方法不仅适用于泥炭土壤，而且适用于Andosol和灰色陆地土壤。这是一种摩尔的排水，但衰减的耐用性更高，构造便宜。他还开发了过滤材料，以避免在酸性土壤中堵塞排水管，例如tokachi-dake下游的泥流区域。

项目成果

泥流地帯における暗渠排水管閉塞の対策技術

泥石流地区涵洞排水管堵塞对策技术

• 发表时间: 2005
• 期刊: 農業土木学会誌 73(8)
• 作者: 北川巌;竹内晴信;中津敬太
• 通讯作者: 中津敬太

Application of a subsoiler stuffed with bark manure to wet andosols in the Tokachi District

深松机在十胜地区湿土中的应用

• 发表时间: 2002
• 期刊: Journal of Hokkaido Central Agricultural Experiment Station 83
• 作者: Shuji Higashida;Iwao Kitagawa
• 通讯作者: Iwao Kitagawa

高木 優次: "暗渠を導入した草地における土壌中の水分移動について"第52回農業土木学会北海道支部研究発表会講演集. 76-79 (2003)

高木雄二：“带涵洞的草原土壤中的水分运动”日本农业土木工程学会第 52 届北海道分会研究报告会论文集 76-79（2003 年）。

A new turn and present state of drainage improvement in snowy cold region

雪寒地区排水整治的新转折及现状

• 发表时间: 2005
• 期刊: Journal of Japanese Society of Soil Physics 100
• 作者: Kazumasa Nakamura;Takeshi Matsukawa;Keji Unoki;Iwao Kitagawa
• 通讯作者: Iwao Kitagawa

積雪寒冷地における暗渠排水の現状と今後の展開

雪寒地区涵洞排水现状及未来发展

• 发表时间: 2005
• 期刊: 土壌の物理性 100
• 作者: 中村和正;松川剛士;鵜木啓二;北川 巌
• 通讯作者: 北川 巌