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

泥炭地湖沼の水文化学的環境の解明とその生態系保全・再生手法に関する基礎的研究

泥炭地湖泊水培环境阐明及生态系统保护与恢复方法的基础研究

基本信息

批准号：
07J04996
负责人：
木塚俊和
金额：
$ 1.15万
依托单位：
Hokkaido University
依托单位国家：
日本
项目类别：
Grant-in-Aid for JSPS Fellows
财政年份：
2007
资助国家：
日本
起止时间：
2007 至 2008
项目状态：
已结题

项目摘要

泥炭地湖沼は湿地を利用する様々な生物にとって重要な生息場であり,保全の必要性が社会的にも認識されている.しかし,泥炭地湖沼の保全に必要な,水文化学環境に関する研究は少ない,本研究では,以下の二課題を通して,とくに北海道の低平地湿原に典型的な泥炭地湖沼の水文化学環境の保全・修復手法を提言した.課題1.泥炭地湖沼に固有の水文化学環境の把握人為的攪乱の少ない釧路湿原赤沼を対象に,湖沼の水文化学環境を水・物質収支を用いて定量的に評価した.その結果,赤沼では余剰降水量が多いため,多量の地表流入水が生じ,これまで報告のあった泥炭地湖沼や泥炭地に比べて流入・流出水量が多かった.この地表流入・流出水は湖水のミネラルイオン蓄積を抑制する役割を果たしていた.課題2.人為的攪乱による泥炭地湖沼の水文化学環境変化機構の解明人為的攪乱を受けている泥炭地湖沼として,集水域の大部分が農地化された石狩泥炭地宮島沼を対象に,赤沼と同様の方法で湖沼の水・物質収支を調査した.その結果,宮島沼は農地排水の流入や樋門操作といった営農に伴う水管理によって,泥炭地湖沼本来の水文化学環境を失っていることがわかった.宮島沼の水文化学環境を修復するためには,農地排水の流入を阻止するだけでなく,降水のようなミネラルイオン濃度の低い地表水の流入が必要であると考えられた.以上の結果は,宮島沼を含む石狩泥炭地湖沼群の水文化学環境の保全を検討するうえで重要な知見となる.

Peatland, lakes, marshes, wetlands, marshes, wetlands, marshes, marshes, wetlands, marshes, wetlands, marshes, marshes, wetlands, wetlands, marshes, marshes, wetlands, wetlands, marshes, wetlands, marshes, marshes, wetlands, wetlands, marshes, we It is necessary for the preservation of peat lakes and marshes, and the study of hydrochemical environment is very few. In this study, the following two environmental conservation techniques are recommended in Hokkaido, Hokkaido, lowland and moist plains. Topic 1. The inherent hydrochemical environment of peat lakes and marshes should grasp the man-made chaos, the wet plains and red marshes of the roads, and the water quality of the hydrochemical environment of the peatlands and marshes. According to the results of the experiment, the residual precipitation of the red marshes is very high, and a large amount of water flows into the earth's surface, and it is reported that the amount of water inflow and outflow from the red marshes is much higher than that of the peatlands. The surface flows into and out of the water, the lake water, the water of the lake, the water of the lake. Topic 2. The man-made disorderly farming peat lakes hydrochemical environmental protection mechanism explains the man-made disorderly pollution peat land wetlands and marshes, gathers most of the agricultural geochemistry, peat land, peat land, marshes, marshes, marshes and marshes, and uses the method of lake water, water, physical and chemical support to collect water and marshes. According to the results of the experiment, the drainage water from the marshes and marshes flowed into the gate operation and the management of the water, and the peat lakes were originally affected by the hydrochemical environment. The hydrochemical environment of biogas and marshes is modified to prevent the flow of ground drainage into the environment, and the flow of precipitation into low-grade surface water is necessary. As a result of the above results, the biogas contains the hydrochemical environment of peatland, peatland and marshes.