Studies on the Hydro-Geomorphological Clasisfication and It's Quantification of Controlling Factors for Water Cycle in the Mountain Regions With Small Reliefs

小地形山地水文地貌分类及水循环控制因素量化研究

• 批准号: 01460266
• 负责人: SHINDO Shizuo
• 金额: $ 3.01万
• 依托单位: Chiba 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: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1991
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-01460266/
• 关键词: Hydro-Geomorphology; Controlling Factor of Water Cycle; Experimental Watershed; Litter Layer; Granitic Moutain Region; Tokyo University Forests; HYdraulic Conductivity; Weathered Soil; 流域の水文観測; 谷頭部の微地形区分; 地形変化の予測; 流域の土層構造; 基盤の割れ目流; 基盤への浸透; パ

Since 1989, we have carried out the observations on hydro-geomorphology to make clear the controlling factors of water cycle in the mountain regions with small reliefs. As for the experimental watershed in cases of granitic mountain region, we chose the Akatsu watershed in the Aichi Tokyo University Forests and Obara watershed in Obara Village. To compare with those watershed to another geologic area, we settled the Inuyama watershed in the Aichi Tokyo University Forests, which is covered by sand and gravel of fluvial fan deposit.In this year, we focused on the surface layer including, litter as concentrated flow path of storm flow. To make clear the role of such layer to the stream flow generation, observations in the Akatsu and Inuyama experimental watershed and laboratory experiments on those characteristics of hydraulic conductivity and water retention were carried out.From laboratory experiments, it was clear that saturated subsurface flow occurred through the litter layer overlying weathered soil. Although we could not observe subsurface water flows in both layers of litter and surface weathered soil distinctively, it was confirmed that saturated throughflow in the surface soil layer occurred during the storm event.

为了弄清小起伏山区水循环的控制因素，我们从1989年起进行了水文地貌观测。至于花岗岩山区的实验流域，我们选择了在爱知东京大学森林的赤津流域和小原村的小原流域。为了与其他地质区域的分水岭进行比较，我们将犬山分水岭设置在爱知东京大学森林中，该分水岭被冲积扇存款的砂和砾石覆盖。今年，我们将重点放在表层，包括作为风暴流集中流动路径的凋落物。为了明确该层对径流产生的作用，在Akatsu和犬山实验流域进行了观测，并进行了水力传导率和持水特性的室内实验。虽然我们不能观察到地下水流在这两个层的凋落物和表面风化的土壤明显，它被证实，在表层土壤中的饱和通流发生在风暴事件。

项目成果

Ayako MORI: "Subsurface flow in hillslopes considering deep percolation through granitic rock" Trans. Jpn. Geomorphl. Union. 11. 300-301 (1990)

Ayako MORI：“考虑通过花岗岩的深层渗透的山坡地下流”Trans。

佐倉 保夫: "花崗岩山地で生じた谷頭部の微地形変化" 地形.

Yasuo Sakura：“花岗岩山脉中山谷顶部的微地形变化”地形。

寺島 智巳: "花崗岩山地の流域次数と地下水流動の関係" 水文科学会. (1990)

Tomomi Terajima：“流域秩序与花岗岩山脉地下水流的关系”水文科学学会（1990）。

森 綾子: "岩盤浸透流を考慮した斜面地中水の挙動" 地形学連合. (1990)

森绫子：“考虑基岩渗流的斜坡地下水行为”地貌联盟（1990）。

Tomomi TERAJIMA, Ayako MORI and Haruo ISHII: "Comparative study of deep percolation amount in two small catchments in granitic mountain." Hydrology. (1992)

Tomomi TERAJIMA、Ayako MORI 和 Haruo ISHII：“花岗岩山两个小流域深层渗滤量的比较研究”。