| 老江河的水质理化特性及其渔业评价 |
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| 引用本文： | 樊启学,张家波.老江河的水质理化特性及其渔业评价[J].华中农业大学学报,1996,15(6):573-579. |
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| 作者姓名： | 樊启学 张家波 |
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| 作者单位： | 华中农业大学水产学院 |
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| 摘 要： | 对老江河的周年水质分析结果表明，水温平均１８．８℃（９．１～３１．１℃）；透明度平均２３１ｃｍ（６３～５２５ｃｍ）；ｐＨ平均７．６９（７．１２～８．２０）；溶解氧平均９．２４ｍｇ／Ｌ（７．９６～１１．５２ｍｇ／Ｌ）；化学耗氧量平均４．５６ｍｇ／Ｌ（３．３７～５．７９ｍｇ／Ｌ）；碱度平均２．２９ｍｍｏｌ／ｌ（２．０５～２．６４ｍｍｏｌ／ｌ）；硬度（ＣａＣＯ３）平均１２７．４ｍｇ／Ｌ（１１０．８～１４３．４ｍｇ／Ｌ），属软水。主要离子含量及排列顺序与长江水相近，属Ｏ·Ａ阿列金分类法ＣＣａⅢ型。主要营养元素中，无机Ｎ含量为０．４８９ｍｇ／Ｌ，其中ＮＯ－１３—Ｎ０．２４ｍｇ／Ｌ，ＮＨ＋４—Ｎ０．２２５ｍｇ／Ｌ，ＮＯ－１２—Ｎ０．０２４ｍｇ／Ｌ；ＰＯ－３４—Ｐ０．００８ｍｇ／Ｌ。Ｎ∶Ｐ平均为６１∶１，Ｐ更缺乏。老江河的水质状况表明它是适宜鱼类生长发育的良好渔业水体，营养类型介于贫－中营养型之间，适合于在此建立中国长江四大家鱼种质资源库
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| 关 键 词： | 四大家鱼 种质资源库 水质 渔业评价 |
WATER CHEMICAL PROPERTIES OF THE LAOJIANGHE LAKE,RESERVOIR OF BREED RESOURCES OF FOUR DOMESTIC FISHES,AND ITS WATER QUALITY ASSESSMENT IN RELATION TO PISICULTURE |
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| Fan Qixue,Zhang Jiabo,Wang Weimin,Yang Ganyong.WATER CHEMICAL PROPERTIES OF THE LAOJIANGHE LAKE,RESERVOIR OF BREED RESOURCES OF FOUR DOMESTIC FISHES,AND ITS WATER QUALITY ASSESSMENT IN RELATION TO PISICULTURE[J].Journal of Huazhong Agricultural University,1996,15(6):573-579. |
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| Authors: | Fan Qixue Zhang Jiabo Wang Weimin Yang Ganyong |
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| Abstract: | This artical deals with water chemical properties of the Lao Jianghe Lake,reservoir of breed resources of four domestic fishes in Yangtse. River.Water temperature, transparency, pH, dissolved oxygen, chemical oxygen demand, alkalinity and hardness are measured and analysed.The contents of major ions and their sequence are close to those in Yangtse River.The content;of major nutrients,inorganic nitrigen and phosphatic phosphorus, are both low.The rate of N:P is 61:1, which means phosphorusis much scarcer than nitrigent.As far as water chemical properties are concerned,all the resluts show it is suitable to set up a reservoir of breed resources of four domestic fishes in Lao Jianghe Lake. |
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| Keywords: | reservoir of breed resources of four domestic fishes water chemical properties assessment in relation to pisciculture |
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