Averaging Process of Runoff Characteristics within Small Watersheds

小流域内径流特征的平均过程

• 批准号: 60460160
• 负责人: TAKAGI Fusetsu
• 金额: $ 2.88万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-60460160/
• 关键词: Runoff; Watershed; Soil Moisture; Ground water; Runoff analysis; ランピング・スケール

The runoff phenomena in a watershed appear as the results of the averaging process of the flow charactersitics within various regions with wide diversities in geological and hydraulic properties. This research project intends to investigate the averaging process of runoff characteristics within a small watershed in connection with the physical phases of flow process in the ground surface, intermediate zone and also ground water aquifer.For this purpose the hydrological amounts such as rainfall, soil moisture, river discharge and ground water level fluctuations etc have been observed in the two Test Basins. Based on the observed data, the averaging processes have been discussed. The results obtained through this project are summarized as follows.<i> ) The local fluctuations of ground water level have great diversity due to the geological conditions. The time and spatial scales of ground water behaviours have been also discussed through the statistical analyses.<ii> ) The flow pathes of rainfall-water within a small watershed have been clarified by means of the <(delta)^(18)> O-Oxyzen-tracer. It is then suggested that even the direct runoff component may be supplied mainly by the flow component through the sub-surface region.<iii> ) These results have been applied to discuss the rainfall-runoff process in rahter greater watersheds and also the urban region. Then several knowledges have been newly derived with respect to the averaging process or lumping scales of runoff processes within actual watersheds.

流域中的径流现象是作为在地质和液压特性中广泛多样性的各个区域内流动特征的平均过程的结果出现的。该研究项目旨在调查与地面，中间区域以及地下水含水层相关的小流域中径流特征的平均过程。在这两个测试基础中，已经观察到降雨，土壤水分，河流排放和地下水水平的波动等水文量。根据观察到的数据，已经讨论了平均过程。通过该项目获得的结果如下。<i>）由于地质条件，地下水位的局部波动具有巨大的多样性。通过统计分析也讨论了地下水行为的时间和空间尺度。<ii>）通过<（delta）^（18）> o-oxyzen-tracer阐明了小流域内降雨量水的流道。然后建议，即使是直接的径流组件也可以主要由通过地下区域的流量组件提供。<iii>）这些结果已应用于讨论拉特大流域和城市地区的降雨跑步过程。然后，关于实际流域内的平均过程或径流过程的集结量表，几个知识是新得出的。

项目成果

Matubayashi,U.;F.Takagi: Prceedings of International Symposium on Flood Frequency and Rick Analysis.(1986)

Matubayashi，U.；F.Takagi：洪水频率和瑞克分析国际研讨会论文集。（1986）

高木不折,原田守博,内田光一: 日本地下水学会会誌. 27-4. 171-182 (1985)

Fusettsu Takagi、Morihiro Harada、Koichi Uchida：日本地下水水文学会杂志 171-182（1985）。

F.Takagi, M.Harada and K.Uchida: "On the characteristics of groundwater behavior in the Komaki hill region" The Journal of The Japanese Association of Groundwater Hydrology. 27-4. 171-182 (1985)

F.Takagi、M.Harada 和 K.Uchida：“小牧山区地下水行为特征”，日本地下水水文学协会杂志。

U.Matsubayashi and F.Takagi: "On the probabilistic characteristics of point and areal rainfall" Proceedings of International Symposium on Flood Frequency and Risk Analysis. (1986)

U.Matsubayashi 和 F.Takagi：“关于点和面降雨的概率特征”洪水频率和风险分析国际研讨会论文集。

F.Takagi, U.Matsubayashi and M.Katayama: "A role of the geographical factors in the averaging process of runoff phenomena within a watershed" Bulletin, Nagoya University Museum.No. 1. 107-122 (1985)

F.Takagi、U.Matsubayashi 和 M.Katayama：“地理因素在流域内径流现象平均过程中的作用”公告，名古屋大学博物馆。