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首页> 外文会议>International Peat Congress; 20040606-11; Tampere(FI) >STUDY ON THE WATER QUALITY OF SMALL PONDS AND ITS INFLUENCE FACTORS IN ISHIKARI PEATLANDS, JAPAN
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STUDY ON THE WATER QUALITY OF SMALL PONDS AND ITS INFLUENCE FACTORS IN ISHIKARI PEATLANDS, JAPAN

机译：日本石狩田小池塘水质及其影响因素研究

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摘要

To clarify water quality and its influence factors on small ponds surrounded by agricultural land use in Ishikari peatlands, the water quality, water depth and inflow discharges of pond water and inflow water into ponds, and the properties of bottom sediments were measured. Water depth of small ponds rose during the irrigation periods of paddy fields (from May to August), and the water quality of small ponds depended generally on the quality of inflow waters. Organic matter contents of bottom sediments ranged within about 25 to 60%, and pore water in sediments occupied about 80% by volume. The concentrations of NH_4-N in pore water were higher than pond waters, due to reductive conditions of pore water.
机译：为了弄清石狩泥炭地的水质及其对被农业用地包围的小池塘的影响因素，测量了水质，水深，池塘水和流入池塘的入水量，并测量了底泥的性质。在稻田灌溉期间（5月至8月），小池塘的水深上升，小池塘的水质通常取决于流入水的质量。底部沉积物中的有机物含量在25％至60％的范围内，沉积物中的孔隙水约占体积的80％。由于孔隙水的还原条件，孔隙水中的NH_4-N浓度高于池塘水。

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