ESTIMATING GROUNDWATER LEVEL CHANGES BASED ON LAND SUBSIDENCE IN THE ISHIKARI RIVER BASIN
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- YAMADA Tomohito J.
- 北海道大学 大学院工学研究院
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- WACHI Koki
- アクセンチュア株式会社
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- SUZUKI Eiichi
- 一般財団法人北海道河川財団
Bibliographic Information
- Other Title
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- 石狩川流域泥炭地における地盤沈下量に基づく地下水位変化の推定
- イシカリガワ リュウイキ デイタンチ ニ オケル ジバン チンカリョウ ニ モトズク チカ スイイ ヘンカ ノ スイテイ
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Abstract
It has been 100 years since the flood prevention works began in the Ishikari river basin, the northern island Hokkaido in Japan. The purpose of this activity was to reduce groundwater levels up to 90 cm in addition to the flood control management because many regions in the Ishikari river basin were covered by peat and wetlands. This study investigated the change of groundwater level in association with historical information of land subsidence and field observation over some areas of paddy field where were used to be natural ponds or wetlands. The estimation method for the change of groundwater level was applied to a method which was used to investigate embankment subsidence in peat lands. Our results showed that the estimated change of groundwater level at several areas is comparable with observed values by our field survey.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)
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Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 71 (5), I_55-I_60, 2015
Japan Society of Civil Engineers
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Details
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- CRID
- 1390282680334072064
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- NII Article ID
- 40020629223
- 130005128925
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- ISSN
- 21856648
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- NDL BIB ID
- 026822701
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed