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ID 192
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title alternative
Spatial variation in nitrogen export from various catchments and topographic effects on it in Kurose River Catchment
creator
峯 孝樹
齋藤 光代
吉田 浩二
重枝 豊実
竹井 務
subject
nitrate-nitrogen flux
water pollution
geographical features
NDC
Earth sciences. Geology
abstract
To evaluate the spatial variation of nitrogen flux in urban-suburban catchments, topographic influenceson nitrate concentration, flux and runoff were examined at nineteen small catchments. The results indicatedno correlations between topographic parameters on one hand and NO3--N concentration, flux, and runoff,respectively. These results suggest that both of runoff and NO3--N concentration is controlled by factors such asland use and artificial factor. On the other hand, the fluctuation of NO3--N concentration decreases with increasein the catchment area. This means that we can estimate the common values of them in such catchment size.
journal title
Memoirs of the Faculty of Integrated Arts and Sciences, Hiroshima University. IV, Science reports
volume
Volume 29
start page
115
end page
122
date of issued
2003-12
publisher
広島大学総合科学部
contributor
国立情報学研究所
issn
1340-8364
ncid
SelfDOI
language
jpn
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
department
Graduate School of Integrated Arts and Sciences
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