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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (5): 267-271.

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

闽江流域地表水质季节性变化特征研究

陈涵贞1,2,苏德森1,2,吕新1,2,陈丽华1,2,李玥仁1,2   

  • 收稿日期:2009-11-16 修回日期:2009-12-04 出版日期:2010-03-05 发布日期:2010-03-05
  • 基金资助:

    闽江水域微生物群落结构与变化动态

Seasonal Changes of surface water in Minjiang River

  • Received:2009-11-16 Revised:2009-12-04 Online:2010-03-05 Published:2010-03-05

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摘要：

依据2007-2008年闽江流域11个断面不同季节地表水有机污染指标的跟踪监测数据，对闽江流域地表水质的季节性变化特征进行了初步研究。结果表明，地表水体中有机污染指标存在明显的季节性差异。COD浓度随季节变化以7月和11月较高，年内变化范围5.0 mg.L-1～28.0mg.L-1；NH+4-N浓度则1月、 3月较高，年内变化范围0.18 mg.L-1～2.97mg.L-1；TN和NO-2-N浓度均以11月较高，年内变化范围分别为0.81 mg.L-1～3.23mg.L-1和0.01 mg.L-1～0.15mg.L-1；TP浓度1月、11月较高。但COD、NH+4-N、NO-2-N、浓度均以9月较低。而且，COD、NH+4-N、NO-3-N 与TN；NH+4-N与TP之间存在显著正相关。相对而言，闽江流域水质随季节变化以秋季较好，冬、春季较差。

关键词: 烟草, 烟草, 品种, SSR标记, 遗传多样性

Abstract:

Based on monitoring data of pollutants in different seasons of the 11 spots in Minjiang River from 2007 to 2008, this paper preliminarily studied the seasonal changes of surface water. The results showed indicators of organic pollution of surface water varied with the season. The concentration of COD in July and November were highest through the year, and ranged from 5.0 mg.L-1to 28.0 mg.L-1during this year. The concentration of NH+4-N in January and March were highest, and ranged from 0.18 mg.L-1to 2.97 mg.L-1 during the year. The concentration of TN and the concentration of NO-2-N in November were highest. The concentrations of TN ranged from 0.81 mg.L-1 to 3.23 mg.L-1 and the concentrations of NO-2-N ranged from 0.01 mg.L-1 to 0.15mg.L-1. The concentrations of TP were highest in January and November. But the concentration of COD, NH+4-N and NO-2-N in September were lowest. Moreover, there are the very significant positive correlation Between COD ， NH+4-N ，NO-2-N and TN, NH+4-N and TP. Generally, Minjiang water was easily polluted in winter and spring, followed in autumn.