How should river embankments be spatially developed, from the upstream section or the downstream section?
How should river embankments be spatially developed, from the upstream section or the downstream section?
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河堤在空间上应该如何开发,从上游还是下游?
DOI:
10.1111/jfr3.12870
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发表时间:
2022
影响因子:
4.1
通讯作者:
Kazama So
中科院分区:
文献类型:
--
作者:
Koma Taisei;Kono Tatsuhito;Kazama So
Using an economic model of how river embankments affect local residents, we explore the efficiency of embankment construction from two viewpoints: (1) which section of a river should be constructed first, the upstream or downstream section, and (2) how tall the embankments should be constructed depending on the section. For this purpose, we first develop a model to determine efficient construction of embankments using a hydraulic model. Then, we perform numerical simulations, which are calibrated with recorded ground data for the Kitakami and Abukuma Rivers. The results reveal that the construction from the upstream section can be efficient if the upstream section has a much larger population than the downstream section. We show that constructing higher embankments in the upstream section generates negative externalities in the downstream section because it increases the possibility of flooding in the downstream section. In addition, when the amount of inflow from tributaries into the downstream section is sufficiently large compared to that into the upstream section, embankments with efficient heights bring about Pareto improvements, giving benefit to residents in the downstream section as well as the upstream section. Moreover, we show that the efficient embankment heights depend on which section the construction starts from.
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DOI:
10.1061/(asce)he.1943-5584.0002019
发表时间:
2021
期刊:
影响因子:
--
作者:
S. Kazama;Koji Sakamoto;Golam Saleh Ahmed Salem;Shunsuke Kashiwa
通讯作者:
Shunsuke Kashiwa
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
A. Jayawardena
通讯作者:
A. Jayawardena
DOI:
10.1061/(asce)0733-9496(2009)135:2(90
发表时间:
2009
影响因子:
3.1
作者:
T. Zhu;J. Lund
通讯作者:
J. Lund
影响因子:
4.8
作者:
Yamamoto Tao;Kazama So;Touge Yoshiya;Yanagihara Hayata;Tada Tsuyoshi;Yamashita Takeshi;Takizawa Hiroyuki
通讯作者:
Takizawa Hiroyuki
DOI:
10.1016/c2018-0-01304-3
发表时间:
2019
期刊:
--
影响因子:
--
作者:
R. Gregory;D. Winterfeldt
通讯作者:
D. Winterfeldt