Water management strategies for hydropower annexation at existing irrigation dams in Japan

Ueda, Tatsuki; Goto, Masahiro; Namihira, Atsushi; Hirose, Yuichi

doi:10.1007/s10333-014-0432-4

Cited by 5 publications

(4 citation statements)

References 8 publications

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“…For example, farmlands can effectively sequester carbon in the soils using organic materials for underdrains (Kitagawa and Tsukamoto 2014). Also, small hydropower projects using irrigation infrastructures are becoming increasingly popular across Japan (Ueda et al , 2015. Evaluating such externalities may often require specialized methods in environmental economics including the Contingent Valuation Method (CVM) and the travel cost method.…”

Section: Discussionmentioning

confidence: 99%

Economic and environmental impacts of agricultural and rural development projects in Japan: evidence from an interregional input–output analysis

Ueda

Kunimitsu

2017

Asia-Pac J Reg Sci

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Over the past centuries, Japan has developed a distinguished system for irrigated rice culture through cooperation of civil engineering and farming. This system has evolved into public works called the Agricultural Infrastructure Improvement and Rural Development Projects (A&R). We investigated the economic and environmental impacts of A&R using an interregional input-output (IRIO) analysis, with a limited scope on the construction stage. We incorporated an unpublished database on A&R into published IRIO tables to compile a public-work (PW) extended IRIO. The results showed that: (1) PW, particularly A&R, had greater impacts on regional economies of remote regions; and (2) major GHGemitting input sectors included construction materials, oil/coal products, electricity, transport, as well as fossil-fuel consumptions by PW themselves. Furthermore, scenario analyses, in which PW sectors must suffer a budget cut, were conducted. The results suggested that the national government may well choose different budget allocations according to their objectives. If they aimed to minimize regional discrepancies in economic development, then lighter budget cuts should be imposed on remote regions. Meanwhile, if they aimed at minimizing the losses of National Total Outputs or maximizing the national GHG reduction, then they would face a trade-off, which stemmed from a strong proportional linkage between the outputs and the GHG emissions of PW. To moderate such a trade-off, technological structures of PW should be innovated, including: (1) increase energy efficiency (i.e., reduce consumption of electricity and fossil fuels); (2) reduce construction materials Electronic supplementary material The online version of this article

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Section: Discussionmentioning

confidence: 99%

Economic and environmental impacts of agricultural and rural development projects in Japan: evidence from an interregional input–output analysis

Ueda

Kunimitsu

2017

Asia-Pac J Reg Sci

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“…Perez-Sanchez et al [16] reviewed energy recovery in existing water distribution networks, and concluded that it is a helpful alternative that can improve the energy efficiency of the system. While the above instances involve the additional installation of small hydro on existing irrigation systems, Ueda et al [17] demonstrated a trade-off between irrigation and hydropower from dams in Japan involving seasonal demand changes among stakeholders.…”

Section: Introductionmentioning

confidence: 99%

Effect of Residents’ Involvement with Small Hydropower Projects on Environmental Awareness

et al. 2020

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Small hydropower plants utilizing unharnessed energy in existing irrigation systems are a prominent source of renewable energy. In Japan, land improvement districts play a key role in the management of irrigation systems, but face serious problems in terms of management sustainability and require participation from non-farmers. The purpose of this study was to examine the effect of residents’ involvement in small hydropower projects on their environmental awareness and understanding of the projects’ multifunctional regional value. We administered a questionnaire survey to 238 households in three areas: Itoshiro, Kashimo and Ibigawa. The respondents were categorized into four groups: participation, recognition, knowledge and control. Based on the degree of respondents’ involvement in small hydropower projects, inclusive relationships between their involvement and awareness were revealed. These relationships suggest that the trigger of resident involvement is a key factor in developing sustainable small hydro facilities within existing irrigation systems.

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“…Os autores mostram a preocupação com a possibilidade das políticas de intensificação de irrigação na bacia afetar outros setores de produção, sendo um deles a produção de 22 energia por hidrelétricas (Maneta et al, 2009 Contudo, apesar desta afirmativa pontuado no trabalho de Ueda (2014), foram identificados exemplos de estudos que se dedicaram a estabelecer uma valoração para água em seus diferentes usos a fim de fornecer uma ferramenta para que tomadores de decisões políticas optassem pelo uso da água mais lucrativo para a região e/ou país em questão (George et. al., 2011) (Kadigi et.…”

Section: Principais Impactos Causados Por Hidrelétricasunclassified

“…Segundo Naz (2013) Segundo Tilmant et al (2009) uma gestão dinâmica aumenta os benefícios esperados anuais, afirma ainda que tais benefícios podem ser usados para compensar as eventuais perdas do setor agrícola por causa da produção de energia. Segundo Ueda et al (2014) no Japão, muitos estudos têm sido feitos sobre como otimizar a concepção de barragens multifuncionais recém construídas para irrigação e energia hidrelétrica.…”

Section: Principais Impactos Causados Por Hidrelétricasunclassified

Relações sobre usinas hidrelétricas e alterações nos modos de produção agrícola

Praia¹

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The installation of hydroelectric projects has increased in Brazil in the last decade. Likewise, the importance of agricultural production in the national economy has also grown. The land suppression and the alteration of the water flow caused by the flooding necessary to the implantation of hydroelectric plants alter the structure and dynamics of the regions directly affected by environmental and social processes such as resettlement, migration, real estate speculation, rural exodus, etc. These impacts of hydroelectric plants have been widely described in the literature. The present study sought to analyze in a specific way the impacts caused by the floods suffered by the Brazilian municipalities affected by hydroelectric plants and their reflection in the modes of agricultural production of the affected municipalities. The study included an exploratory analysis of the impacts of hydroelectric dams on agriculture using selected indicators from the national scale, complemented by a case-study at the local scale, focusing on the Jirau and Santo Antonio power plants in Porto Velho, Rondonia, through semi-structured interviews.The results from correlations obtained in the exploratory phase showed that the larger the size of the flooded area, the greater the variation of planted areas and the agricultural GDP of the affected municipalities. From the case study it was possible to identify that there are significant impacts on the agricultural production methods, and that this change can be explained by the difference between the quality of the soil of riverside regions and the quality of the soil in the resettlements. Such impacts may influence the indicators that reflect the amount of planted areas of these municipalities. The study also revealed that the impacts on agriculture were not predicted in the environmental impact studies of the Jirau and Santo Antônio hydropower plants.

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Water management strategies for hydropower annexation at existing irrigation dams in Japan

Cited by 5 publications

References 8 publications

Economic and environmental impacts of agricultural and rural development projects in Japan: evidence from an interregional input–output analysis

Economic and environmental impacts of agricultural and rural development projects in Japan: evidence from an interregional input–output analysis

Effect of Residents’ Involvement with Small Hydropower Projects on Environmental Awareness

Relações sobre usinas hidrelétricas e alterações nos modos de produção agrícola

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