Journal of Guangxi Normal University(Natural Science Edition) ›› 2012, Vol. 30 ›› Issue (4): 115-122.

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Benthic Macroinvertebrate Community Structure and Water Quality Bioassessment in Lijiang River,Guilin,China

CHEN Kai1, ZHANG Yong-xiang2,3, CAI De-suo2,3,4, ZHANG jie1, XU Sheng1, WANG Bei-xing1   

  1. 1.Laboratory of Aquatic Insects and Stream Ecology,Departmentof Entomology,Nanjing Agricultural University, Nanjing Jiangsu 210095,China;
    2.College of Hydraulic and Environmental Engineering,China Three Gorges University, Yichang Hubei 443002,China;
    3.College of Civil Engineering and Architecture,Guangxi University,Nanning Guangxi 530004,China;
    4.Guangxi Water and Power Design Institute,Nanning Guangxi 530023,China
  • Received:2012-04-18 Published:2018-11-27

Abstract: Macroinvertebrate assemblages were collected using aD-frame net at 78sites in Lijiang river,Guilin,Guangxi province,in March 2008,November 2008 and March 2011,respectively,and physicochemical variables were measured at the same time.A total of 169 macroinvertebrate taxa were collected in March 2008,and the other 120 and 215 macroinvertebrate taxa at other time respectively.Insecta was dominant both in species richness and abundance.Pearson correlation analysis showed that the Shannon-Wiener index was negatively significantcorrelated with total nitrogen (r=-0.390,p=0.003) and total phosphorus (r=-0.510,p=0.000),and the biotic index was positively correlated with total nitrogen (r=0.333,p=0.012) and total phosphorus (r=0.384,p=0.003).There are at least 60% of monitored streams in the quality of clean by the Shannon-wiener diversity index and BI,and less than 10% of monitored streams in the condition of heavily polluted.The results showed that Shannon-Wiener diversity index and BI had the potential use in assessing Lijiang river biological condition with macroinvertebrates.

Key words: Benthos, Shannon-Wiener diversity index, Biotic index, bioassessment, Lijiang river

CLC Number: 

  • X503.223
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