| 京杭运河常州老运河段底栖动物多样性研究 |
| Biodiversity of Zoobenthos in Changzhou Section of Beijing-Hangzhou Canal (the Old Section of the Canal) |
| 投稿时间：2014-03-26 修订日期：2014-05-27 |
| DOI： |
| 中文关键词:底栖动物 生物多样性 群落完整性 |
| 英文关键词:zoobenthos biodiversity Changzhou section of Beijing –Hangzhou Canal |
| 基金项目:国家水体与污染治理科技重大专项（2012ZX07506-003, 2012ZX07301-007）；江苏省环境监测科研基金（1313）；常州市科技支撑计划项目（CE20125009） |
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| 中文摘要: |
| 为探究常州段底栖动物的多样性状况和变化趋势，进一步开展河道生态监测与水质评价，通过连续多年对京杭运河常州段（老运河段）底栖动物的调查，分析其群落结构分布特征和变化规律，采用Shannon-Wiener 指数、BI指数对河段的底栖动物多样性进行评价，并利用污染生物效应指数（BPI）对水质进行评价。结果表明，常州段上游的底栖动物种类最多、种群丰富度最高、群落完整性最好、多样性状况最好、生态污染效应最小，中游次之，下游最差，底栖动物多样性正逐年得到恢复；2009－2013年，常州段的污染生物效应指数逐年上升，污染效应逐年下降，污染程度逐年减轻，由此说明该河段的水质正逐年得到改善，生态环境逐步好转。 |
| 英文摘要: |
| The distribution characteristics and variation of zoobenthos community structure in the old canal of Changzhou were analyzed based on the continual investigation in 2009, 2011 and 2013. The diversity of zoobenthos and the water quality in the canal were evaluated through Shannon-Wiener index, biotic index（BI） and biological effects index of pollution (BPI). The results showed that the species richness, community integrity, diversity of zoobenthos community all presented the superiority in the upper reaches of the old canal, with the lightest ecological pollution effect. The middle reaches took the second place, and the lower reaches were the worst. The zoobenthos diversity gradually recovered in this section. In addition, the BPI rises year by year, the polluting effect and the degree of water pollution both present the downward trend every year, indicating that the water quality and ecological environment of the oldJ canal of Changzhou have been gradually improved. This study lays the foundation for the ecological monitoring and water quality assessment in Changzhou section of Beijing –Hangzhou Canal. |
| 张皓,徐东炯,张翔,曹志俊.2014.京杭运河常州老运河段底栖动物多样性研究[J].水生态学杂志,35(4):22-28. |
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