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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (2): 241-245.

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

灰色聚类法在重庆北碚区境内支流河流水质评价中的应用

张旭 江长胜 郝庆菊   

  • 收稿日期:2009-07-14 修回日期:2009-07-20 出版日期:2010-01-20 发布日期:2010-01-20
  • 基金资助:

    我国西南地区免耕农田CO2、CH4和N2O排放的研究;我国西南地区水田免耕对土壤碳截存影响研究

Application of the Gray Clustering Method on Water Quality Evaluation the Tributary Rivers of Beibei District of Chongqing

  • Received:2009-07-14 Revised:2009-07-20 Online:2010-01-20 Published:2010-01-20

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摘要：

本文采用灰色聚类法，对重庆北碚区境内主要支流河流中堰塘坎、龙凤河口、西西桥、偏岩、水土共5个断面2007年2、5、8共3个月的水质监测结果进行了评价。评价结果表明，北碚区区支流河流各断面水质状况差别较大，龙凤河口和西西桥两个断面由于工业废水和生活污水的大量排放，污染较严重，3 次监测结果均为Ⅴ类水，其他3个断面—堰塘坎、偏岩、水土水质均达到了Ⅱ类或Ⅲ类标准。

关键词: 石灰性土壤, 石灰性土壤, 土层, 磷形态, 分级, 有效性

Abstract:

In this paper, Gray Clustering Method was applied in evaluate the water quality of three tributary rivers (which are Bibei River, Motan River and Heishui River) in Beibei District of Chongqing. The monitoring data came from the five monitoring cross sections, where Yantangkan, Longfeng River outfall, Xixi Bridge, Pianyan and Shuitu County were selected and monitored in February, May and August of 2007, respectively. The evaluative results showed that the differences among the water quality of monitoring cross sections are large, and Longfeng outfall and Xixi Bridge were polluted worse than the others because the emissions of industrial waste water and domestic sewage arbitrarily, with Grade Ⅴwater quality standard in three monitoring data and the water quality level are GradeⅡ or Ⅲ except Longfeng outfall and Xixi Bridge monitoring cross sections.