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| 松花江流域生物完整性时空变化分析 |
| Spatial and Temporal Changes of Biological Integrity in Songhua River Basin |
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| DOI： |
| 中文关键词: 生物完整性指数 水生态环境质量 指示生物EPT 松花江流域 |
| 英文关键词: Index of biotic integrity Water eco environmental quality Biological indicator Ephemeroptera, Plecoptera, Trichoptera (EPT) Songhua River basin |
| 基金项目:国家水体污染控制与治理科技重大专项“流域水生态环境质量监测与评价研究” 基金资助项目(2013ZX07502001) |
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| 中文摘要: |
| 采用大型底栖动物生物完整性指数(B-IBI)法对松花江流域的水生态环境质量进行研究分析。结果表明，2015年松花江流域各点位水生态环境质量1724%为优、1034%为良好、2414%为一般、4138%为较差、690%为很差。与2012年松花江流域水生态环境质量的比较和趋势分析表明，松花江干流下游、第二松花江、松花江支流的水生态质量均出现不同程度的改善，松花江干流下游改善尤为显著，松花江干流上游生态质量基本保持不变，嫩江水生态质量有下降迹象。流域总体水生态环境质量得到进一步改善，总物种数和清洁指示类群EPT丰度均有增加。 |
| 英文摘要: |
| The water eco environmental quality in Songhua River basin was studied by benthic index of biotic integrity (B IBI). The results showed that during 2015 in Songhua River basin， 17.24% of water eco environmental quality was excellent， 10.34% was fine， 24.14% was medium， 41.38% was poor， 6.90% was very bad. Compared with the water eco environmental quality in Songhua River basin in 2012， the water eco quality in the downstream of Songhua River， second Songhua River and the tributaries of Songhua River were improved in different degree， especially in the downstream of the Songhua River. The eco quality remained unchanged in the upstream and showed signs of decline in Nenjiang River. The general water eco environmental quality in the basin was further improved. The total species and EPT(cleaning indicator groups) abundance both increased. |
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