Effect of frequent storms on nutrient discharge in a mountainous coastal catchment, western Japan

Shin Ichi Onodera, Misa Sawano, Mitsuyo Saito, Hidehiro Takahashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)

Abstract

In order to forecast the variation of nutrient load with climate change, the long-term change in rainfall and its effect on river runoff in a study catchment were investigated and related to change in nutrient discharge to the ocean. In the study area there has been a decreasing rainfall trend for 40 years but the frequency of large rainfall events has remained constant. The annual runoff decreased by 60 mm in the last 40 years, but large annual runoff amounts were observed in years with large rainfall events. The nutrient discharge also reflected the rainfall and runoff trends. DN load has increased in the long term, while in drought years DP load has increased, reflecting the dominant groundwater contribution with significantly higher DP concen-trations in such conditions.

Original languageEnglish
Title of host publicationIAHS-AISH Publication
Pages108-116
Number of pages9
Edition314
Publication statusPublished - 2007
Externally publishedYes
EventInternational Symposium: Water Quality and Sediment Behaviour of the Future: Predictions for the 21st Century - 24th General Assembly of the International Union of Geodesy and Geophysics (IUGG) - Perugia, Italy
Duration: Jul 11 2007Jul 13 2007

Other

OtherInternational Symposium: Water Quality and Sediment Behaviour of the Future: Predictions for the 21st Century - 24th General Assembly of the International Union of Geodesy and Geophysics (IUGG)
CountryItaly
CityPerugia
Period7/11/077/13/07

Fingerprint

catchment
rainfall
nutrient
runoff
long-term change
drought
effect
climate change
groundwater
ocean
river
trend

Keywords

  • Groundwater
  • Heavy storm event
  • Nutrient discharge
  • River

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

Cite this

Onodera, S. I., Sawano, M., Saito, M., & Takahashi, H. (2007). Effect of frequent storms on nutrient discharge in a mountainous coastal catchment, western Japan. In IAHS-AISH Publication (314 ed., pp. 108-116)

Effect of frequent storms on nutrient discharge in a mountainous coastal catchment, western Japan. / Onodera, Shin Ichi; Sawano, Misa; Saito, Mitsuyo; Takahashi, Hidehiro.

IAHS-AISH Publication. 314. ed. 2007. p. 108-116.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Onodera, SI, Sawano, M, Saito, M & Takahashi, H 2007, Effect of frequent storms on nutrient discharge in a mountainous coastal catchment, western Japan. in IAHS-AISH Publication. 314 edn, pp. 108-116, International Symposium: Water Quality and Sediment Behaviour of the Future: Predictions for the 21st Century - 24th General Assembly of the International Union of Geodesy and Geophysics (IUGG), Perugia, Italy, 7/11/07.
Onodera SI, Sawano M, Saito M, Takahashi H. Effect of frequent storms on nutrient discharge in a mountainous coastal catchment, western Japan. In IAHS-AISH Publication. 314 ed. 2007. p. 108-116
Onodera, Shin Ichi ; Sawano, Misa ; Saito, Mitsuyo ; Takahashi, Hidehiro. / Effect of frequent storms on nutrient discharge in a mountainous coastal catchment, western Japan. IAHS-AISH Publication. 314. ed. 2007. pp. 108-116
@inproceedings{117f10d36bd3446c8efa50c3c74b1310,
title = "Effect of frequent storms on nutrient discharge in a mountainous coastal catchment, western Japan",
abstract = "In order to forecast the variation of nutrient load with climate change, the long-term change in rainfall and its effect on river runoff in a study catchment were investigated and related to change in nutrient discharge to the ocean. In the study area there has been a decreasing rainfall trend for 40 years but the frequency of large rainfall events has remained constant. The annual runoff decreased by 60 mm in the last 40 years, but large annual runoff amounts were observed in years with large rainfall events. The nutrient discharge also reflected the rainfall and runoff trends. DN load has increased in the long term, while in drought years DP load has increased, reflecting the dominant groundwater contribution with significantly higher DP concen-trations in such conditions.",
keywords = "Groundwater, Heavy storm event, Nutrient discharge, River",
author = "Onodera, {Shin Ichi} and Misa Sawano and Mitsuyo Saito and Hidehiro Takahashi",
year = "2007",
language = "English",
isbn = "9781901502145",
pages = "108--116",
booktitle = "IAHS-AISH Publication",
edition = "314",

}

TY - GEN

T1 - Effect of frequent storms on nutrient discharge in a mountainous coastal catchment, western Japan

AU - Onodera, Shin Ichi

AU - Sawano, Misa

AU - Saito, Mitsuyo

AU - Takahashi, Hidehiro

PY - 2007

Y1 - 2007

N2 - In order to forecast the variation of nutrient load with climate change, the long-term change in rainfall and its effect on river runoff in a study catchment were investigated and related to change in nutrient discharge to the ocean. In the study area there has been a decreasing rainfall trend for 40 years but the frequency of large rainfall events has remained constant. The annual runoff decreased by 60 mm in the last 40 years, but large annual runoff amounts were observed in years with large rainfall events. The nutrient discharge also reflected the rainfall and runoff trends. DN load has increased in the long term, while in drought years DP load has increased, reflecting the dominant groundwater contribution with significantly higher DP concen-trations in such conditions.

AB - In order to forecast the variation of nutrient load with climate change, the long-term change in rainfall and its effect on river runoff in a study catchment were investigated and related to change in nutrient discharge to the ocean. In the study area there has been a decreasing rainfall trend for 40 years but the frequency of large rainfall events has remained constant. The annual runoff decreased by 60 mm in the last 40 years, but large annual runoff amounts were observed in years with large rainfall events. The nutrient discharge also reflected the rainfall and runoff trends. DN load has increased in the long term, while in drought years DP load has increased, reflecting the dominant groundwater contribution with significantly higher DP concen-trations in such conditions.

KW - Groundwater

KW - Heavy storm event

KW - Nutrient discharge

KW - River

UR - http://www.scopus.com/inward/record.url?scp=55749090832&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=55749090832&partnerID=8YFLogxK

M3 - Conference contribution

SN - 9781901502145

SP - 108

EP - 116

BT - IAHS-AISH Publication

ER -