Analysis of NO3-N pollution with a distributed groundwater quality model

Hiroaki Somura; Akira Goto; Hiroyuki Matsui; Elhassan Ali Musa; Masakazu Mizutani

Analysis of NO₃-N pollution with a distributed groundwater quality model

Hiroaki Somura, Akira Goto, Hiroyuki Matsui, Elhassan Ali Musa, Masakazu Mizutani

Research output: Contribution to journal › Article › peer-review

Abstract

Nitrate-nitrogen (NO₃-N) was selected as a groundwater resource sustainability indicator because it is well known as a cause of some diseases and the concentration in groundwater has increased gradually in recent years. We monitored it continuously from August 1996 to December 2001 in the Nasunogahara basin, Tochigi Prefecture, Japan, and constructed a distributed groundwater quality model in this basin. The model consists of two processes: infiltration of the NO₃-N load into groundwater, and advection of the NO₃-N load in the groundwater. As a result, the large changes of nitrogen load in the surface layer before/after heavy rainfall and the concentration changes in the groundwater by advection were well expressed. In addition, the effects of the nitrogen load infiltration from many livestock farms in the upper basin to groundwater in the lower basin were investigated.

Original language	English
Pages (from-to)	158-171
Number of pages	14
Journal	IAHS-AISH Publication
Issue number	302
Publication status	Published - Sept 18 2006
Externally published	Yes

Keywords

Alluvial fan
Livestock farming
Shallow aquifer
Sound utilization of groundwater

ASJC Scopus subject areas

Water Science and Technology
Oceanography

Cite this

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title = "Analysis of NO3-N pollution with a distributed groundwater quality model",

abstract = "Nitrate-nitrogen (NO3-N) was selected as a groundwater resource sustainability indicator because it is well known as a cause of some diseases and the concentration in groundwater has increased gradually in recent years. We monitored it continuously from August 1996 to December 2001 in the Nasunogahara basin, Tochigi Prefecture, Japan, and constructed a distributed groundwater quality model in this basin. The model consists of two processes: infiltration of the NO3-N load into groundwater, and advection of the NO3-N load in the groundwater. As a result, the large changes of nitrogen load in the surface layer before/after heavy rainfall and the concentration changes in the groundwater by advection were well expressed. In addition, the effects of the nitrogen load infiltration from many livestock farms in the upper basin to groundwater in the lower basin were investigated.",

keywords = "Alluvial fan, Livestock farming, Shallow aquifer, Sound utilization of groundwater",

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T1 - Analysis of NO3-N pollution with a distributed groundwater quality model

AU - Somura, Hiroaki

AU - Goto, Akira

AU - Matsui, Hiroyuki

AU - Musa, Elhassan Ali

AU - Mizutani, Masakazu

PY - 2006/9/18

Y1 - 2006/9/18

N2 - Nitrate-nitrogen (NO3-N) was selected as a groundwater resource sustainability indicator because it is well known as a cause of some diseases and the concentration in groundwater has increased gradually in recent years. We monitored it continuously from August 1996 to December 2001 in the Nasunogahara basin, Tochigi Prefecture, Japan, and constructed a distributed groundwater quality model in this basin. The model consists of two processes: infiltration of the NO3-N load into groundwater, and advection of the NO3-N load in the groundwater. As a result, the large changes of nitrogen load in the surface layer before/after heavy rainfall and the concentration changes in the groundwater by advection were well expressed. In addition, the effects of the nitrogen load infiltration from many livestock farms in the upper basin to groundwater in the lower basin were investigated.

AB - Nitrate-nitrogen (NO3-N) was selected as a groundwater resource sustainability indicator because it is well known as a cause of some diseases and the concentration in groundwater has increased gradually in recent years. We monitored it continuously from August 1996 to December 2001 in the Nasunogahara basin, Tochigi Prefecture, Japan, and constructed a distributed groundwater quality model in this basin. The model consists of two processes: infiltration of the NO3-N load into groundwater, and advection of the NO3-N load in the groundwater. As a result, the large changes of nitrogen load in the surface layer before/after heavy rainfall and the concentration changes in the groundwater by advection were well expressed. In addition, the effects of the nitrogen load infiltration from many livestock farms in the upper basin to groundwater in the lower basin were investigated.

KW - Alluvial fan

KW - Livestock farming

KW - Shallow aquifer

KW - Sound utilization of groundwater

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Analysis of NO₃-N pollution with a distributed groundwater quality model

Abstract

Keywords

ASJC Scopus subject areas

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