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洪泽湖7条入湖河流的水质动态及其关联分析(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2012年04期
Page:
36-40
Column:
研究论文
publishdate:
2012-07-31

Article Info:/Info

Title:
The dynamics and spatial correlation of water quality of seven rivers of Hongze Lake in Sihong county
Author(s):
ZHANG Shaowei1 LIU Maosong1* XU Chi1 MA Xiangdong2 LI Aimin2 FENG Kaiyu2 HE Kongzhong3
1. School of Life Sciences, Nanjing University, Nanjing 210093, China; 2. Environmental Protection Agency of Sihong, Sihong 223900, China; 3. Meteorological Bureau of Sihong, Sihong 223900, China
Keywords:
non-point source pollution comprehensive pollution index grey relational analysis water quality indicator Hongze Lake
Classification number :
X824
DOI:
10.3969/j.jssn.1000-2006.2012.04.007
Document Code:
A
Abstract:
Changes and spatial correlations of the water quality of 7 rivers of Hongze Lake were studied based on bi-monthly monitoring data from 15 sites distributed in the 7 rivers in Sihong county from 1996 to 2008. The rivers in the study area could be divided into 3 classes; the eastern rivers were mainly for irrigation and flood drainage, the western rivers mainly acted as the channel for the upper rivers to the Hongze Lake, while the central rivers went through the urban area of Sihong county. The results showed that:(1)Water quality of the western rivers was significantly deteriorated, and that in the central and eastern rivers was slightly deteriorated.(2)The main pollutants in the study area were organic pollutants, the main pollutants in the central rivers across the urban area were TN and ammonia nitrogen; the main pollutants of the western rivers were petroleum and COD, while petroleum and TN were the main pollutants of the eastern rivers. The pollution load had regional differentiation.(3)BOD5, COD, volatile phenols, mercury and petroleum showed similar dynamics in all three areas, while ammonia nitrogen and TN showed diverse dynamics comparatively.

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Last Update: 2012-07-07