权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Simulation of red tide formation in semi-enclosed coastal sea and its application for prevention

半封闭近海赤潮形成模拟及其防治应用

基本信息

批准号：
14350526
负责人：
KOSE Kuniji
金额：
$ 9.02万
依托单位：
Hiroshima University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2003
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14350526/
关键词：
semi-enclosed coastal sea measurement of water quality measurement of ecosystem mesocosm environment ecosystem simulator oyster raft POM 隔離水隗環境シュミレータかき筏プランクトン数理生態モデル流況シミュレーション CIP法

项目摘要

In the present research, Eta-jima Bay was selected for the investigation of the typical semi-enclosed coastal sea in the Seto Inland sea. The atmospheric parameter, water quality and primary production of plankton were observed for the establishment of the mathematical ecological model. Real time monitoring system and mesocosm were employed for the observation in which water temperature, salinity dissolved oxygen, potential of hydrogen, chlorophyll a, nutrients, number of plankton were measured. The observation by the mesocosm evaluated the effect of the horizontal transportation by current. The mathematical ecological model was composed by dissolved oxygen, dissolved inorganic phosphorus, suspended organism, dissolved organism with subsidiary parameter as salinity and water temperature. Ocean model was developed to simulate a current based on the Princeton Ocean Model including the effect of oyster raft which occupy in the Eta-jima bay. In the present research, environment ecosystem simulator was developed by the combination of the ocean model, atmosphere model and mathematical ecological model. The developed environment ecosystem simulator revealed the effect of the oyster on the ecosystem, which inspire the possibility to control the ecosystem and red tide formation by the arrangement of the oyster raft.

本研究选择了濑户内海中典型的半封闭近岸海域江田岛湾进行调查。为建立数学生态模型，观测了大气参数、水质和浮游生物初级生产力。采用真实的实时监测系统和围隔生态系统进行观测，测定了水温、盐度、溶解氧、氢势、叶绿素a、营养盐、浮游生物数量等。通过围隔观测，评价了海流水平输送的效果。数学生态模型由溶解氧、溶解无机磷、悬浮生物、溶解有机物组成，辅之以盐度和水温。基于Princeton海洋模式建立了一个海洋模式，模拟了江田岛湾的海流，并考虑了牡蛎筏的影响。本研究将海洋模型、大气模型和数学生态模型相结合，开发了环境生态系统模拟器。所开发的环境生态模拟器揭示了牡蛎对生态系统的影响，为通过牡蛎排的布置控制生态系统和赤潮的发生提供了可能。