Water preservation of irrigation pond

灌溉池塘保水

• 批准号: 05660276
• 负责人: KAWANO Hiroshi
• 金额: $ 1.22万
• 依托单位: Kagawa University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05660276/
• 关键词: Irrigation Pond; Water Quality; Water Quality Preservation Apparatus; Experimental Tank; Mixing; pH,DO; Aeration; 撹拌; 攪拌・曝気; PH・DO

1. Conservation and improvement of irrigation pond in Kagawa PrefectureThe results may be sumarized as follows :1) Old reservoir rehabilitation project is continual.2) The greater part of pond-fed irrigation area in Kagawa Pref.is very small.3) It becomes clear that the distribution of irrigation pond which environmental situation get worse.4) In the case of planning of irrigation pond conservation and improvement for the sake of solution of the maintenance problem, It is necessary to consolidate pond according to the land use plan.2. Water quality in irrigation reservoir of Kagawa PrefectureIn kagawa prefecture, from a long time ago, many irrigation reservoir were constructed for agricultural water use. Recently the water quality in irrigation reservoirs are very low. The damage of low water quality can be seen in for example green house. The clogging is occurred in microirrigation system. So low water quality in irrigation reservoir is serious problem. Firstly, the relation of water … More quality and ground level of irrigation reservoir along the river were examine. Secondly the relation of population in catchment area of reservoir and water quality were checked. The results indicated that domestic drainage water play a important role in low quality water of reservoir.3. An experimental study of water quality preservationElementary test of water quality by mixing : An elementary test of water extracted from an irrigation pond was conducted using a small tank located in experimental room. Then the water was mixed by a screw and exposed to the air at the surface of water. Dissolved oxygen (DO) was ued as an index for the quality evaluation. DO increased as the time elapsed after mixing. An injection pipe was highly efficient for increasing DO,rather than screw mixer.Preservation test at an irrigation pond : The water quality of the pond was dirty, which was lower than a standard value for growing rice. Although water quality as time elapsed was purified a little by the operation of a preservation apparatus, the effect was quite limited, caused by curled up from the bottom. Less

1. 香川县灌溉池塘的保护与改善结果总结如下：1)旧水库修复工程持续进行。2)香川县大部分池塘灌溉面积很小。(3)环境状况恶化的灌溉塘分布明显。(4)在为解决养护问题而规划灌溉塘养护和改善的情况下，需要根据土地利用规划对塘进行加固。香川县灌溉水库水质在香川县，很早以前就修建了许多灌溉水库用于农业用水。近年来，我国灌区水库水质状况十分恶劣。低水质的危害可以在温室中看到。微灌系统存在堵塞现象。因此，灌区水库水质问题十分严重。首先考察了沿江灌溉水库的水质与地面水位的关系。其次对水库集水区人口与水质的关系进行了校核。结果表明，生活排水在水库低水质中起着重要作用。水质保存的实验研究混合法水质的初步试验：利用设在实验室内的一个小水箱，对从灌溉池抽取的水进行了初步试验。然后用螺丝钉把水混合起来，暴露在水面的空气中。以溶解氧（DO）作为质量评价指标。DO随着混合后时间的流逝而增加。注射管比螺旋混合器更能有效地提高溶解氧。灌溉池保藏试验：该池塘水质较脏，低于水稻种植标准值。虽然经过一段时间后，通过保存装置的操作，水质得到了一点净化，但由于从底部卷曲，效果相当有限。少

项目成果

河野 広: "溜池の水質の現状とその保全" 農業土木学会中国四国支部講演会講演要旨. No.48. 197-199 (1993)

Hiroshi Kono：“水库水质现状及其保护”日本农业土木工程师学会中国-四国分会讲座摘要第 48 期（1993 年）。

森下一男: "溜池灌漑地域における水利統合" 農業土木学会誌. 63. 37-42 (1995)

Kazuo Morishita：“水库灌溉区的用水整合”日本农业和土木工程师学会杂志 63. 37-42 (1995)。

K.Morishita: "Integrated water use in irrigation distric of pond" Journal of the Japanese society of irrigation, drainage and reclamation engineering. 63. 37-42 (1995)

K.Morishita：《池塘灌溉区的综合用水》日本灌溉排水与垦殖工程学会杂志。

河野広ほか9名: "溜池の整備に関する研究" 香川大学教育研究特別経費・プロゼェクト研究. 1-100 (1994)

Hiroshi Kono等9人：“水库维护研究”香川大学教育研究特别基金/项目研究1-100（1994）。