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ID 16601
file
title alternative
Field measurement of groundwater environment in Takamatsu district
creator
Watanabe, Kenichi
Morinaga, Kazuo
subject
confined groundwater
unconfined groundwater
water level
water quality
field measurement
GIS
Takamatsu
NDC
Construction. Civil engineering
abstract
Field measurement of groundwater level and analysis of groundwater quality were carried out quarterly to clarify the present situation of confined and unconfined groundwater in Takamatsu district. Our measured data, the groundwater data obtained by public sectors and other relevant digital data were arranged on GIS software to develop the database on hydrological cycle. It is confirmed that the contours of unconfined groundwater level run nearly parallel to those of topography and that the groundwater level has shown seasonal variation of about 1 to 2m. Nitrate nitrogen of unconfined water at several locations has exceeded the environmental standard, which may have come from the overuse of fertilizer. The level of confined groundwater has gradually increased owing to the regulation of groundwater uptake. The pH value of confined subsurface water has unchanged whereas the levels of iron and evaporation residue have decreased.
journal title
水工学論文集
volume
Volume 46
start page
211
end page
216
date of issued
2002-02
publisher
土木学会
issn
0916-7374
ncid
language
jpn
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
department
Graduate School of Engineering