Study on Change in River Landscape in Alluvial Fun Rivers and Its Restoration

冲积乐趣河河流景观变化及其恢复研究

• 批准号: 11650523
• 负责人: TSUJIMOTO Tetsuro
• 金额: $ 2.18万
• 依托单位: NAGOYA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650523/
• 关键词: Alluvial fun river; Degradation of riverbed; Forestation in rivers; River Landscape; Evaluation method of habitat; River restoration; 河床低下; 河相変質; 伏流

The aim of the project is to establish the method to predict and evaluate the change in river landscape in alluvial fun rivers where both sediment supply and peak discharge of floods have been decreased due to dam constructions. First, several individual topics observed in the rivers have been investigated using field data, flume experiments and numerical simulations. Second, the synthesized processes including the response of trees in a river to the change of the geomorphology have been discussed in order to seek proper restoration method of the rivers. The results have been summarized as below :1. Comparison between two rivers -The Tedori River and The Abe RiverThe changes in geomorphology and vegetated area in the Tedori River and those in the Abe River have been compared using survey data and aerial photographs. The two rivers have almost same drainage area and bed-slope in an alluvial reach. The Tedori River has a large dam, but the Abe River does not. The results show that the de … More crease of the peak discharge in floods causes the thriving of vegetation in a channel.2. Processes of geomorphology and growth of vegetated areaThe following processes are investigated in detail.(1) Sediment transport process in a channel with vegetated area(2) Patterns of growing vegetation area concerned to ground water level and deposited bed-material(3) Flood damage and/or advantage on vegetationThese investigations have emphasized the importance of the interaction among vegetation, geomorphology and water regime.3. Modeling of vegetation dynamics due to decrease of peak discharge in floodsThe effect of the decrease of peak discharge in floods on the growth of vegetation has been modeled in order to evaluate the changing landscape due to dam constructions. The model has successfully predicted the thriving of vegetation in the Terori River, and it would be one of powerful tools to discuss the change in river landscape.4. Evaluation method of changing habitatThe IFIM/PHABSIM method has been modified by adding the idea for synthesis of several different life-stages of a fish species. The method has also been cooperated with sediment transport model in order to discuss the effects of the change in geomorphology and vegetation pattern on the habitat.5. Toward restorationThe environmentally sound and cost-effective methods for the restoration of the rivers have been discussed base on the results shown in the above. Less

该项目的目的是建立一种方法，以预测和评估冲积河河中的河流景观变化，在该河流中，由于大坝建筑，泥沙供应和地板的峰值排放量都得到了改善。首先，已经使用现场数据，水槽实验和数值模拟研究了河流中观察到的几个单独主题。其次，综合过程包括河中的树木对地貌变化的反应，以寻求河流的正确恢复方法。结果总结如下：1。使用调查数据和航空照片比较了两条河流 - 泰多利河和安倍河的比较。这两条河流在冲积范围内几乎具有相同的排水区域和床头窗口。泰多利河有一个大水坝，但安倍河没有。结果表明，洪水中峰值排出的更多折痕会导致植被在通道中的繁荣。2。 （1）详细研究了植被之后的地质学和生长过程。（1）在植被面积（2）植被面积不断增长的植被面积的模式（2）涉及地下水位和沉积的床层造成的（3）植被研究的洪水损害和/或优势的植被损害和/或优势对植被的研究强调了蔬菜相互作用的重要性，该植被损害和优势强调了蔬菜的重要性，该植被损害和优势强调了蔬菜的重要性。蔬菜动力学的建模由于地板上的峰值排放降低而导致地板排放量减少对蔬菜生长的峰值减少的影响已被建模，以评估由于大坝结构而变化的景观。该模型已成功预测了Terori河中蔬菜的繁荣，这将是讨论河流景观变化的强大工具之一。4。改变栖息地的评估方法已通过添加合成鱼类的几种不同生命阶段的想法来改变IFIM/Phabsim方法。该方法还与沉积物传输模型协调，以讨论地貌和植被模式变化对栖息地的影响5。为了恢复以上所示的结果，已经讨论了基于环境声音和成本效益的恢复河流的方法。较少的

项目成果

Dey,A.K.,T.Tsujimoto and T.Kitamura: "Growth and migration of headcut in heterogeneous soil stratum"水工学論文集,土木学会. 第45巻. 823-828 (2001)

Dey, A.K.、T.Tsujimoto 和 T.Kitamura：“异质土层中切头的生长和迁移”，《水利工程学报》，日本土木工程师学会，第 45 卷，823-828（2001 年）。

Tetsuro TSUJIMOTO, Yoko MURAKAMI and Tatsuya YASUI: "Growth of vegetation in fluvial-fan segment due to decrease of destruction of vegetation by floods"Annual Journal of Hydraulic Engineering. Vol.45 (in Japanese). 1105-1110 (2001)

Tetsuro TSUJIMOTO、Yoko MURAKAMI 和 Tatsuya YASUI：“由于洪水对植被破坏的减少，河扇段植被的生长”水利工程学年刊。

Yoshihiko SHIMIZU, Shigeki KOBATAKE and Satoshi OKADA: "Study on the expansion of Robina Pseudo-Acacia in gravel-bed river caused by flood disterbance"Annual Journal of Hydraulic Engineering. Vol.45 (in Japanese). 1099-1104 (2001)

清水义彦、小畑茂树、冈田聪：“洪水扰动引起的砾石河床中刺槐假相思树扩张的研究”水利工程学报。

Fusetsu TAKAGI, Tetsuro TSUJIMOTO, Tetsuya SUMI and Akiko ISEKI: "Piping process to reach bank break and evaluation of effect of traditional flood fighting technology "Tsukinowa""Advances in River Engineering. Vol.5 (in Japanese). 123-128 (1999)

Fusetsu TAKAGI、Tetsuro TSUJIMOTO、Tetsuya SUMI 和 Akiko ISEKI：“到达堤岸的管道过程和传统防洪技术“Tsukinowa”的效果评估”河流工程的进展。

高木不折,辻本哲郎,鷲見哲也,井関明子: "パイピングによる破堤過程と「月輪工」の効果の評価"河川技術に関する論文集,土木学会. Vol.5. 123-128 (1999)

Fusetsu Takagi、Tetsuro Tsujimoto、Tetsuya Sumi、Akiko Izeki：“管道破坏堤坝过程的评估和‘月环工作’的效果”，河流技术论文集，日本土木工程师学会，第 5 卷，第 123 卷。 128 (1999)