広島県主要河川流域における栄養塩流出の特性
Use this link to cite this item : http://doi.org/10.15027/14184
ID | 14184 |
file | |
title alternative | Characteristics of Nutrient discharge in the major river basins of Hiroshima Prefecture.
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creator |
斎藤 光代
吉田 浩二
峯 孝樹
林 政輝
重枝 豊実
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subject | Nutrient discharge
Major river basins
Hiroshima Prefecture
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NDC |
Pollution. Environmental engineering
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abstract | To estimate the nutrient discharge from land to the sea, we conducted hydrochemical investigations of the major rivers at the 15 catchments located in Hiroshima-Prefecture. The results are summarized as follows:1) Seasonal variations of TN load in Ohta river and Ashida river indicate that precipitation have a large effect on the river runoff and TN load change with the amount of river discharge. It also suggests the characteristics of TN discharge with the difference of precipitation.2) The DOC and DN load from the middle-scale and small-scale catchments are estimated to be not small. We confirmed that the DOC and DN load per unit area are relatively large in the small catchments with low urban infrastructure, such as waste water system.3) DOC and DN fluxes mainly changed with the variation of river runoff and land use.
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journal title |
Memoirs of the Faculty of Integrated Arts and Sciences, Hiroshima University. IV, Science reports
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volume | Volume 30
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start page | 97
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end page | 105
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date of issued | 2004-12
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publisher | 広島大学総合科学部
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contributor | 国立情報学研究所
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issn | 1340-8364
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ncid | |
SelfDOI | |
language |
jpn
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nii type |
Departmental Bulletin Paper
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HU type |
Departmental Bulletin Papers
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DCMI type | text
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format | application/pdf
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text version | publisher
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department |
Graduate School of Integrated Arts and Sciences
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他の一覧 |