Advertisement

Evaluation of the Water-Environment Policy in the Toyogawa Basin, Japan

  • Katsuhiro SakuraiEmail author
  • Hiroyuki Shibusawa
  • Kanta Mitsuhashi
  • Shintaro Kobayashi
Chapter
Part of the New Frontiers in Regional Science: Asian Perspectives book series (NFRSASIPER, volume 24)

Abstract

This study develops a socioeconomic model to evaluate the water-environment policy for the Toyogawa Basin, Japan. The Toyogawa Basin is located in the East Mikawa area, which lies in the southern part of Aichi Prefecture. The basin has an area of 724 km2, which spreads from the urban bay area in the south to the rural mountainous area in the north. In particular, the basin’s southern area has been developed since the area’s water for household, agricultural, and industrial uses is supplied by the Toyogawa River. Currently, this development includes high-value-added agricultural systems in the cities of Toyohashi and Tahara as well as the manufacturing base, which includes the automobile industry, beyond the Mikawa Port. Because the area’s water supply also depends on the Toyogawa River, changes in the industrial structure and residents’ lifestyles have resulted in a serious problem of water shortage. This has also caused several policy issues to arise, including environmental preservation in the Mikawa Bay, highway construction, consolidation of municipalities, and the aging and depopulation of communities in the northern mountainous area. However, the water-environment problems such as water contamination have become increasingly important. To clarify the relationship between these factors and determine the best approach to solve these pressing issues, we first analyze regional data of the Toyogawa Basin and construct a system model to clarify the interaction between the regional economy and the water environment in the basin. This model describes ongoing socioeconomic activities and their impact on the water environment in the area. Next, using this model, we will analyze the relationship between the regional economy and water environment and estimate the impacts of the regional economy on the water environment in the Toyogawa Basin. Finally, we evaluate the water-environment policy in the basin via a simulation analysis using the developed model.

Keywords

Simulation analysis Policy evaluation Regional economy Water environment Toyogawa Basin 

Notes

Acknowledgment

This work is partly supported by the Institute of Economic Studies, Rissho University. Thanks are also due to Dr. Ataru Nakamura.

References

  1. Aichi Construction Department Sewer Division: Sewer of Aichi HP, website, (URL:www.pref.aichi.jp/gesuido/). Final accessed date 20 June 2014
  2. Aichi Environment Department water ground Environment Division (2006) 2005 fiscal year water quality survey of public waters and groundwater result, digital dataGoogle Scholar
  3. Aichi Prefectural life part Statistics Division (2006) 2006 fiscal published Aichi Statistical Yearbook, digital dataGoogle Scholar
  4. Aichi Prefectural life part Statistics Division (2010) 2005 Aichi industry input-output tables, digital dataGoogle Scholar
  5. East Mikawa Development Council (1994) Regional and urban plan for East Mikawa area (in Japanese)Google Scholar
  6. Esaki K (1992) On the impact given by the water supply of toyogawa irrigation canal for local farm households income and agriculture management. Bull Fac Agric Meiji Univ 95:37–60Google Scholar
  7. Institute of Regional Research of Chubu (1998) Economy and Society of East Mikawa 6, Aichi UniversityGoogle Scholar
  8. Makino Y (ed) (1997) Toyokawa water and Atsumi Village, Iwata Sho-in (in Japanese)Google Scholar
  9. Matsukura G, Kokugo O, Higuchi Y and Tanaka Y (1998) Environmental issues of east Mikawa, Okumikawa Shobo (in Japanese)Google Scholar
  10. Sakatou K, Yamasaki S, Konno A (1990) A study of the water demand and land use of toyogawa waterway. Pap City Plan 25:133–138 (in Japanese)Google Scholar
  11. Shibusawa H, Yamaguchi M (2014) Evaluating the social and economic impacts of the water resources in the toyogawa basin. The Lark Hill, Toyohashi Univ Technol 36:45–60Google Scholar
  12. Yamaguchi M, Shibusawa H (2006) A comparative analysis of water resources and regional economic structures in East Mikawa. Stud Reg Sci 35(4):1007–1020CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Singapore 2017

Authors and Affiliations

  • Katsuhiro Sakurai
    • 1
    Email author
  • Hiroyuki Shibusawa
    • 2
  • Kanta Mitsuhashi
    • 3
  • Shintaro Kobayashi
    • 4
  1. 1.Rissho UniversityTokyoJapan
  2. 2.Toyohashi University of TechnologyToyohashiJapan
  3. 3.NTT DATA CorporationTokyoJapan
  4. 4.Japan International Research Center for Agricultural SciencesTsukubaJapan

Personalised recommendations