Creek Water Quality Analysis in Flat Low-lying Paddy-cultivated Area using an Ecosystem Model - Collections

＜departmental bulletin paper＞
Creek Water Quality Analysis in Flat Low-lying Paddy-cultivated Area using an Ecosystem Model

Creator	Author PID K001582 Creator Name 平松, 和昭 Hiramatsu, Kazuaki ヒラマツ, カズアキ Affiliation Affiliation Name 九州大学大学院農学研究院 Faculty of Agriculture, Kyushu University
	Creator Name 白谷, 栄作 Shiratani, Eisaku シラタニ, エイサク Affiliation Affiliation Name 農業工学研究所 National Research Institute for Rural Engineering
	Creator Name 四ヶ所, 四男美 Shikasho, Shiomi シカショ, シオミ Affiliation Affiliation Name 九州大学大学院農学研究院 Faculty of Agriculture, Kyushu University
Language	Japanese
Publisher	九州大学大学院農学研究院
Publisher	Faculty of Agriculture, Kyushu University
Date	2004-10-01
Source Title	Science bulletin of the Faculty of Agriculture, Kyushu University
Vol	59
Issue	2
First Page	153
Last Page	164
Publication Type	Version of Record
Access Rights	open access
JaLC DOI	https://doi.org/10.15017/4334

File	FileType	Size	Views	Description
p153	pdf	1.27 MB	538

PISSN	1347-0159
NCID	AA11577672
Record ID	4334
Peer-Reviewed	Unrefereed
Notes	A mathmatical model was developed for precicting the daily variation of creek water quality in the flat low-lying paddy-cultivated area along the northern Ariake Sea during irrigation period by considering ecosystem processes in the creek water. In the modeling, the interactions among the five water quality indices of NOx-N, NH4-N, Org-N, PO4-P and Org-P were described by first-order kinetics. The model paraments were determined by referring the past literature together with the optimization using a simplegenetic algorithm with the ni situ measurements executed at a creek located in Anegawa, Kanzaki Town, Saga Prefecture, Japan. The relative sensitivities of model paraments were also calculated in order to identify the more important parameters for estimating the creek water quality. The results indicated that the ecosystem model was capable of successfully reproducing the daily variation of creek water quality despite its relatively simple model structure.
Type	紀要論文
Created Date	2009.04.22
Modified Date	2022.11.11