Strategic study on ecohydraulic properties of overgrown vegetation on floodplain aiming at sustainable river management

漫滩杂草丛生的生态水力学特性战略研究，旨在实现河流可持续管理

• 批准号: 23360212
• 负责人: MICHIOKU Kohji
• 金额: $ 12.31万
• 依托单位: Kobe University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23360212/
• 关键词: 水工水理学; 水圏現象; 河川環境; 河川樹林; 植生動態; リモートセンシング; 洪水流; 維持管理; 洪水; 河川k工学; 樹林化; 流水抵抗; 疎通能力; 数値解析; 河道内樹林; 抗力係数; 樹木生長; 樹木倒伏; 模型ヘリ空撮; 画像解析; 樹木生態; 流量確率; 平面二次元流; H-ADCP; 河道地形; 現地観測

In order to investigate ecohydraulic properties of overgrown vegetation on floodplain, field studies and flood flow analysis were performed in three test reaches of vegetated river channel. The test reaches were chosen so that effects of river restoration and artificial discharge control on vegetation overgrowth were individually evaluated. In addition to the probe measurements of flood flow and vegetation behaviors, aerial photographic surveying was carried out by using a radio control mini-helicopter (falcon-PARS). Decades-long vegetation dynamics were successfully analyzed by hydrodynamic and ecological models, which were verified through comparison with the field data collected after several flood events. It was found how river restoration and discharge control affect ecohydrodynamics of vegetated river reach. The result is to provide a guideline for a sustainable river management strategy with minimum labor and cost.

为了调查漫滩上杂草丛生的植被的生态水力学特性，在植被河道的三个试验河段进行了实地研究和洪水流量分析。 选择测试河段是为了单独评估河流恢复和人工排放控制对植被过度生长的影响。除了对洪水流量和植被行为进行探测测量外，还使用无线电控制小型直升机（falcon-PARS）进行了航空摄影测量。 通过水动力和生态模型成功分析了长达数十年的植被动态，并通过与几次洪水事件后收集的现场数据进行比较得到验证。研究发现河流恢复和流量控制如何影响植被河段的生态水动力。 其结果是为以最少的劳动力和成本实施可持续河流管理战略提供指导。

项目成果

Hydrodynamics and hydromorphology of river structures constructed by natural materials

天然材料建造的河流结构的水动力和水形态

• 发表时间: 2013
• 作者: K. Michioku; M. Nanjo; M. Haneda; K. K;a;Z. Li
• 通讯作者: Z. Li

DEFORMATION MECHANISM OF GRAVEL BED RESTORATION WORKS DURING FLOOD IN THE TEDORI RIVER

特多里河洪水期间碎石床修复工程的变形机制

• DOI: 10.2208/jscejhe.69.i_721
• 发表时间: 2013
• 作者: 前野詩朗・忰熊公子・吉田圭介・山村明

INVESTIGATION OF VEGETATION GROWTH AND WASH-OUT CONDITION DURING FLOOD EVENT AT OHARA AREA IN THE ASAHI RIVER

旭川大原地区洪水期间植被生长和冲刷状况调查

• DOI: 10.2208/jscejhe.69.i_727
• 发表时间: 2013
• 作者: 前野詩朗・吉田圭介・三島望・松山悟

Inverse Estimation of Flow Resistance of Vegetation in the Asahi River during a Flood

洪水期间旭川植被流阻的反演

• 发表时间: 2013
• 作者: K. Yoshida;S. Maeno
• 通讯作者: S. Maeno

A PROBABILISTIC EVALUATION OF VEGETATION DYNAMICS IN A RIVER NETWORK BY A STOCHASTIC PROCESS MODEL WITH LINK MAGNITUDES

具有链幅值的随机过程模型对河网植被动态的概率评估

• DOI: 10.2208/jscejhe.68.i_727
• 发表时间: 2012
• 作者: 木村諒・宮本仁志・盛岡淳二