Faculty Profiles - TAKI Kentaro

Papers - TAKI Kentaro

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令和2年7月豪雨時に農業利水施設が球磨川流域の洪水流出・氾濫に与えた影響 Reviewed

早崎水彩, 前川勝人, 瀧健太郎

土木学会論文集B1（水工学） 77 ( 2 ) I_451 - I_456 2021.12

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：公益社団法人土木学会

本研究では，令和2年7月豪雨で甚大な被害を受けた球磨川流域を対象に，中流部にある農業利水施設（幸野溝・百太郎溝）が洪水流出・氾濫に与えた影響を推定した．両水路は球磨川の左岸側を並走し，平面交差・立体交差・サイフォンなど多様な形式で支川群を横断する．降雨・流出～流下～氾濫の一連過程を表現できるモデルを構築し，両水路がある場合(現況)と仮になかった場合を想定し解析した．結果，両水路があることで，平面交差をしない支川では洪水が緩和されたものの，排水先支川では早い段階から水位が上昇し，本川ではピーク水位が僅かに高まった．また，両水路周辺では氾濫域が減少する一方で，本支川合流部に氾濫が集中する傾向も確認された．流域治水の計画にあたっては，長大な農業利水施設の影響は無視できず陽に考慮することが望ましい．

DOI： https://doi.org/10.2208/jscejhe.77.2_I_451

ESTIMATING EFFECT OF AGRICALTURAL WATER USE FACILITIES ON RUNOFF AND FLOODING PROCESS IN KUMA RIVER BASIN DURING 2020 KYUSHU FLOOD Reviewed

Miaya HAYAZAKI, Masato MAEGAWA, Kentaro TAKI

Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 77 ( 2 ) I_451 - I_456 2021.12

A nature-based approach to mitigate flood risk and improve ecosystem services in Shiga, Japan Reviewed

Huang W., Hashimoto S., Yoshida T., Saito O., Taki K.

Ecosystem Services 50 2021.8

Language：English Publishing type：Research paper (scientific journal) Publisher：Ecosystem Services

The increased frequency of extreme rain events due to climate change has garnered attention in Japan. In 2018, the country enacted the Act of Climate Change Adaptation to formulate plans at national and local levels. The government has suggested the use of nature-based solutions (NBSs) across the country to address the increased risk of natural disasters. This study employs scenario analysis to examine the effectiveness of NBSs for the mitigation of flood risk and their implications on the provision of ecosystem services (ESs). Shiga prefecture in Japan enacted its own ordinance in 2015. This ordinance considers existing land use and building regulations to mitigate flood risk. The quantitative analysis assumes nine scenarios up to the year 2050, combining the current policy of Shiga and our original assumption of advance policy options to evaluate the future flood risk and ES. The analysis revealed that land use management can partially mitigate the flood risk by banning new residences and relocating residential land from flood-prone areas to safer areas and converting residential land into forest and paddy fields. It also suggests that both flood risk mitigation and provision of ESs can be further improved if local governments introduce a residence growth management strategy.

DOI： 10.1016/j.ecoser.2021.101309

Scopus

Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85110431583&origin=inward

BASIC STUDY ON THE FLOOD CONTROL FUNCTION OF THE FLOODPLAIN FORMED BY THE TRADITIONAL OPEN LEVEE SYSTEM Reviewed

Kentaro TAKI, Tamaho IZUMINO, Tetsuhiro MATSUDA

Advances in River Engineering 27 87 - 92 2021.6

A STUDY ON EVALUATION METHOD OF FLOOD CONTROL FUNCTION OF OPEN LEVEE SYSTEM AND POSITIONING IN RIVER BASIN MANAGEMENT Reviewed

Kentaro TAKI, Ryota NAKAMURA, Morihiro HARADA, Koji TANAKA

Advances in River Engineering 27 557 - 562 2021.6

滋賀県内自治会における地域防災力の変化要因に関する考察 Reviewed

平山奈央子, 瀧健太郎

土木学会論文集F6（安全問題） 77 ( 2 ) I_108 - I_113 2021

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：公益社団法人土木学会

近年，激甚化・頻発化する豪雨水害を背景に，水防災意識や地域防災力の向上が重要である．本研究は，地域防災力の変化に影響を与える要因を明らかにすることを目的として，滋賀県内の全自治会を対象として実施されたアンケート調査の回答を用いて，地域防災力の約10年間の変化を把握し，その要因を分析した．その結果，消防団等もしくは行政との連絡頻度，洪水ハザードマップの確認状況が向上（低下）した自治会は地域防災力の全ての要素が向上（低下）する傾向にあった．一方，自主防災組織の有無の変化は影響を与える項目が少なかったが，水害危険度上昇時の避難誘導活動との間に正の関係が見られた．自主防災組織の存続が難しい現代社会において，避難誘導や安否確認など命に関わる活動を可能な限り義務的に進める段階にあることが示唆された．

DOI： https://doi.org/10.2208/jscejsp.77.2_I_108

Implemantation Process of the Integrated Flood Management System in Shiga Prefecture, Japan: Better Collaboration of River Management and Floodplain Management Invited

Journal of Japan Society on Water Environment 43 ( A ) 267 - 270 2020.8

流域治水とグリーンインフラ Invited

瀧健太郎

新都市 74 ( 5 ) 61 - 65 2020.5

Better governance for integrated management of the Lake Biwa—Yodo River Basin Reviewed International journal

Norio Nakatsuka, Shoji Kosaka, Kentaro Taki, Masahisa Nakamura, Hiroji Nakagawa

Lakes & Reservoirs 25 ( 1 ) 93 - 104 2020.3

Language：English Publishing type：Research paper (scientific journal) Publisher：International Lake Environment Committee Participation form：Joint(The main charge)

The present study discusses the efforts of the Union of Kansai Governments to resolve serious issues in the Lake Biwa—Yodo River Basin in Japan. It identifies many of the issues related to the basin on a ‘no man's land’ mindset of today's governmental framework, which has constrained both the will and the approach to remedy the associated problems. It also highlights better governance that not only encourages individual efforts, but also promotes collaboration and cooperation among the major stakeholders in the area, as important to developing acceptable solutions to relevant issues. The present study also recognizes objective scientific evidence as an effective driver for improving governance, being the basis for making informed decisions and highlighting the use of appropriate indicators to evaluate the conditions characterizing a specific location or the basin as a whole. The present study also describes the Union of Kansai Governments as a behind‐the‐scenes coordinator that gathers knowledge and intelligence on the basin, and works to integrate policies by getting basin stakeholders to gradually improve governance by repeating a cycle of: (a) recognizing the current situation; (b) identifying relevant issues to be addressed; (c) establishing a framework and policy for collaboration and corporation; and (d) taking necessary actions. To this end, the present study discusses the studies and efforts of the Union of Kansai Governments to develop and implement integrated management of this important interlinked lake–river water system in Japan.

DOI： 10.1111/lre.12309

Other Link： https://onlinelibrary.wiley.com/doi/abs/10.1111/lre.12309

身近な河川の環境・防災を融合した体験型学習プログラムの効果検証 Reviewed

平山奈央子, 瀧健太郎

土木学会論文集F6（安全問題） 76 ( 2 ) I_75 - I_80 2020

自治会におけるハザードマップ作成の実態と水害対策の関係—滋賀県を対象に— Reviewed

平山奈央子, 山下花音, 馬場友美, 瀧健太郎

土木学会論文集G（環境） 76 ( 5 ) I_253 - I_260 2020

湖岸エネルギーフラックスを用いた卓越風変化に伴う琵琶湖岸タイプの将来予測と適応戦略の検討 Reviewed

横川大輝,中辻崇浩,瀧健太郎

土木学会論文集G（環境） 76 ( 6 ) II_219 - II_226 2020

Implementation Process of the Integrated Flood Management System in Shiga Prefecture: Better Collaboration of River Management and Floodplain Management Invited

Kentaro Taki

Journal of Japan Society on Water Environment 43 ( 8 ) 2020

中小河川群の氾濫水理解析に基づく地域防災力向上戦略の検討 Reviewed

瀧健太郎, 山下花音, 平山奈央子, 高西春二

河川技術論文集 25 79 - 84 2019.6

関西広域連合における水害リスクファイナンスの概略設計 Invited

瀧健太郎

彦根論叢 ( 419 ) 132 - 145 2019.2

Designing Flood Risk Finance for the Union of Kansai Governments, Japan

Kentaro Taki, Hideya Kubo

The Hikone Ronso 419 2019.2

滋賀県における立地適正化計画と水害リスクに関する研究

花房昌哉，瀧健太郎，秋山祐樹，吉田丈人，一ノ瀬友博

都市計画報告集 17 378 - 381 2019

リスクベースの氾濫原管理の社会実装に関する研究―滋賀県における建築規制区域の指定を事例として― Reviewed

瀧健太郎

日本リスク研究学会誌 28 ( 1 ) 31 - 39 2018.9

中小河川群の氾濫域における地形的湿潤度と浸水危険度に関する一考察

瀧健太郎，渡邉康司

滋賀県土木技術研究発表会論文集 37 2016.12

The Risk-Based Floodplain Regulation of Shiga Prefecture in Japan Reviewed International journal

Satoru Ichidate, Mitsuhiro Tsuji, Kentaro Taki, Hitoshi Nakamura

E3S Web Conf. 7 2016.10

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