Decomposition approach of the nitrogen generation process: empirical study on the Shimabara Peninsula in Japan

Hidemichi Fujii, Kei Nakagawa, Makoto Kagabu

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Groundwater nitrate pollution is one of the most prevalent water-related environmental problems worldwide. The objective of this study is to identify the determinants of nitrogen pollutant changes with a focus on the nitrogen generation process. The novelty of our research framework is to cost-effectively identify the factors involved in nitrogen pollutant generation using public data. This study focuses on three determinant factors: (1) nitrogen intensity changes, (2) structural changes, and (3) scale changes. This study empirically analyses three sectors, including crop production, farm animals, and the household, on the Shimabara Peninsula in Japan. Our results show that the nitrogen supply from crop production sectors has decreased because the production has been scaled down and shifted towards lower nitrogen intensive crops. In the farm animal sector, the nitrogen supply has also been successfully reduced due to scaling-down efforts. Households have decreased the nitrogen supply by diffusion of integrated septic tank and sewerage systems.

Original languageEnglish
Pages (from-to)23249-23261
Number of pages13
JournalEnvironmental Science and Pollution Research
Volume23
Issue number22
DOIs
Publication statusPublished - Nov 1 2016
Externally publishedYes

Fingerprint

Japan
Nitrogen
decomposition
Decomposition
nitrogen
Crops
Domestic Animals
crop production
Farms
Animals
Septic tanks
pollutant
Groundwater
structural change
Nitrates
Pollution
nitrate
Costs and Cost Analysis
pollution
crop

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

Decomposition approach of the nitrogen generation process : empirical study on the Shimabara Peninsula in Japan. / Fujii, Hidemichi; Nakagawa, Kei; Kagabu, Makoto.

In: Environmental Science and Pollution Research, Vol. 23, No. 22, 01.11.2016, p. 23249-23261.

Research output: Contribution to journalArticle

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