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东江中上游主要控制断面水质变化特征
引用本文:江涛,张晓磊,陈晓宏,林凯荣.东江中上游主要控制断面水质变化特征[J].湖泊科学,2009,21(6):873-878.
作者姓名:江涛  张晓磊  陈晓宏  林凯荣
作者单位:中山大学地理科学与规划学院,广州,510275 
基金项目:国家自然科学基金重点项目,国家自然科学基金项目 
摘    要:根据2001-2007年东江干流中上游博罗站、河源站和龙川站的监测资料,采用季节性Kendall检验方法,对COD_(Mn)、BOD_5和NH_3-N等水质参数的浓度变化趋势进行分析,结果表明:(1)3个断面的BOD5浓度都旱高度显著上升趋势;(2)龙川断面COD_(Mn)和NH_3-N的浓度变化不显著,而河源和博罗断面COD_(Mn)的浓度呈显著下降趋势、NH_3-N浓度呈显著上升趋势;(3)中游主要控制断面水质变化速率大于上游;(4)水质变化受流量的影响相对较小,主要是由陆域污染物排放量的变化所引起的.

关 键 词:季节性Kendall检验法  水质变化  东江
收稿时间:1/6/2009 12:00:00 AM
修稿时间:2009/3/13 0:00:00

The characteristics of water quality change for the main control sections in the middle and upper reaches of East River
JIANG Tao,ZHANG Xiaolei,CHEN Xiaohong and LIN Kairong.The characteristics of water quality change for the main control sections in the middle and upper reaches of East River[J].Journal of Lake Science,2009,21(6):873-878.
Authors:JIANG Tao  ZHANG Xiaolei  CHEN Xiaohong and LIN Kairong
Institution:JIANG Tao,ZHANG Xiaolei,CHEN Xiaohong & LIN Kairong (School of Geographical Science and Planning,Sun Yat-Sen University,Guangzhou 510275,P.R.China)
Abstract:Changes of the concentrations of CODMn, BOD5 and NH3-N from main sections of the middle and upper reaches of East River were identified, by using the method of seasonal Kendall test for water quality data from Longchuan, Heyuan and Boluo monitoring stations during 2001-2007. The results suggest that: (1) the concentrations of BOD5 increase significantly at all stations; (2) the concentrations of CODMn and NH3-N do not display a significant trend at Longchuan control section, and the concentrations of CODMn ...
Keywords:Seasonal Kendall test  water quality change  East River
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