Development of Effective Vegetation Management based on the Modeling of Interspecific Competition of Riparian Vegetation

2014 Fiscal Year Final Research Report

• Project/Area Number: 24560620
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Hydraulic engineering
• Research Institution: Nagoya University
• Principal Investigator: TODA YUJI 名古屋大学, 工学(系)研究科(研究院), 准教授 (60301173)
• Co-Investigator(Kenkyū-buntansha): TASHIRO Takashi 名古屋大学, 減災連携研究センター, 准教授 (30391618)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 河川植生 / 樹林化 / 数値解析モデル / 航空写真分析 / 単独種異常繁茂

Outline of Final Research Achievements

Because of dam construction and artificial alterations of rivers, the rapid expansion of riparian vegetation has been reported, and the effects of river management on morphology and vegetation dynamics should be clarified. In this study, a numerical simulation was developed to describe the vegetation dynamics in river. A series of numerical simulations have been conducted to evaluate the influences of flood discharge and sediment supply modified by dam operation, the influences of sand excavation and of flood plain construction on vegetation dynamics and water control. The results show that the change of discharge and expansion of flood plain significantly affect the vegetated coverage rate and the return period of vegetation destruction in low channel.

Free Research Field

河川工学