透過型砂防ダムの渓流生態系保全機能に関する実証的研究

渗透性防冲坝山间溪流生态系统保护功能实证研究

• 批准号: 13660152
• 负责人: KITAMURA Hirokazu
• 金额: $ 1.28万
• 依托单位: Minamikyusyu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13660152/
• 关键词: stream-environment conservation; permeable sabo dam; aquatic-insect assemblage; drift of aquatic insect; litter dynamics; stream-water quality; material cycle in a stream; decompositin of instream material; 渓流生態系保全; 水生生物群集; 攪乱体制; 不透過型砂防ダム; 羽化行

(1) A pattern of aquatic-invertebrate assemblage in relation to the fragility of stream bed due to the of erosion control work in the stream was observed by the comparative analysis of aquatic-invertebrate assemblage with the fragility of the stream beds estimated by the ratio friction speed to critical friction velocity. (2) While the progress of erosion control work in a stream affects life styles of an certain species of aquatic-invertebrate assemblage, inducing the variation of aquatic-invertebrate assemblage of the stream, it was statistically supported by multivariate analysis of variance that permeable sabo dam influences hardly aquatic-invertebrate assemblage. (3) In a stream bed where impermeable sabo dams are constructed, extreme deposit and subsequent decomposition of litters were observed because stagnant zones dominate due to monotonic water depth and flow velocity. Therefore, it was suggested that stream water quality depends on existing vegetations as well as bed rocks in the stream. (4) Aquatic insects tend to drift to seek for alternative habitats in a stream where impermeable sabo dams are constructed, but this tendancy is not remarkable in the permeable sabo dam constructed stream.

（1）通过比较水的静脉杂交组合物的比较分析，与流床的脆弱性分析与流床的脆弱性相比，观察到了流层的脆弱性，与流床的侵蚀床的脆弱性相关的一种模式。摩擦速度至关键摩擦速度。 （2）虽然溪流中的侵蚀控制作品的进展会影响某种水生脊椎动物组合的某种种类的生活方式，从而诱导了流的水生静脉脑组合的变化，但它通过可渗透性Sabo的多变量分析得到了统计支持大坝几乎不会影响尿布脑组合。 （3）在建造不可渗透的萨博大坝的溪流床中，观察到了极端沉积和随后的垃圾分解，因为由于单调水深和流速速度，停滞的区域占主导地位。因此，建议溪流质量取决于现有的植被以及溪流中的床岩。 （4）水生昆虫倾向于在建造不可渗透的萨博大坝的溪流中寻找替代栖息地，但是在可渗透的萨博大坝构造的溪流中，这种趋势并不显着。

项目成果

北村泰一, 西村幸恵: "ハマボウ挿し穂及び種子の塩水性評価"南九州大学研究報告. 33A. 1-8 (2003)

Taiichi Kitamura、Yukie Nishimura：“Hamabou 插条和种子的耐盐水性评估”南九州大学研究报告 33A（2003 年）。

Hirokazu, Kitamura and Sachie, Nishimura: "Experimental Consideration on Saltwater-tolerative Characteristic of Hibiscuc hamabo Sieb.et Zucc"BULLETIN OF THE FACULTY OF HORTICULTURE MINAMIKYUSHU UNIVERSITY. Vol.33(A). 1-8 (2003)

Hirokazu, Kitamura 和 Sachie, Nishimura：“Hibiscuc hamabo Sieb.et Zucc 耐盐水特性的实验考虑”南九州大学园艺学院通报。