基于鱼类完整性指数的黄浦江水生态系统评价
发布时间：2018-10-09 15:39
【摘要】：黄浦江是连接太湖与长江口的一条多功能平原感潮河流,流经上海市中心城区,干流长113.4 km。为从生态学角度揭示其污染程度,采用鱼类生物完整性指数(F-IBI)对其水生态系统的健康状况作了评价。2013年11月和2014年7月,采用地笼网、三层刺网和拖网对黄浦江7个断面作了相同努力量的样本采集,共获鱼类8 816尾。经鉴定有38种,隶属于6目12科,其中鲤形目24种,鲈形目7种,鲇形目4种。通过区分度分析和关联度筛选,构建了由9个指标组成的F-IBI评价体系。结果表明,黄浦江上游水生态系统总体上处于"好"状态,中游及河口处于"一般"至"差"之间,而下游则较"差"。春季各有3个江段"好"或"差",1个江段"一般";秋季有4个江段"一般",2个江段"差",仅有1个江段"好"。评价还表明,黄浦江上游的3大支流中,由于承接太湖来水的斜塘呈"差",导致了为上海市提供约30%原水的松浦大桥断面呈"差"或"一般"状态。因此,保护淀山湖乃至太湖水质,是确保黄浦江上游水源地原水安全的关键。
[Abstract]:Huangpu River is a multifunctional plain tidal river connecting Taihu Lake and Yangtze River Estuary. It flows through downtown Shanghai. The main stream is 113.4 km. long. In order to reveal the extent of pollution from an ecological point of view, the fish biological integrity index (F-IBI) was used to evaluate the health status of its aquatic ecosystem. In November 2013 and July 2014, the net was used. A total of 8 816 fishes were collected from 7 sections of Huangpu River by three layers Gill net and trawl. There are 38 species, belonging to 6 orders and 12 families, including 24 species of Cyprinidae, 7 species of Perciformes and 4 species of Siluridae. The F-IBI evaluation system composed of 9 indexes was constructed by discriminant analysis and correlation screening. The results show that the water ecosystem of the upper reaches of Huangpu River is in a "good" state, the middle reaches and estuaries are between "average" and "bad", but the lower reaches are "worse". In spring, there are three "good" or "poor" segments, and one section "average", and in autumn there are 4 "general", 2 "poor" and only one "good". The evaluation also shows that among the three major tributaries in the upper reaches of Huangpu River, the section of Songpu Bridge, which provides about 30% raw water for Shanghai, is "poor" or "general" because of the "difference" in the inclined ponds to undertake the coming water from Taihu Lake. Therefore, protecting the water quality of Dianshan Lake and Taihu Lake is the key to ensure the safety of the source water in the upper reaches of Huangpu River.
【作者单位】： 上海海洋大学鱼类研究室上海市海洋动物系统分类与进化重点实验室;
【基金】：上海市水务局黄埔江河流健康评估项目 国家自然科学基金项目(31472280)~~
【分类号】：X826
，
本文编号：2259864
[Abstract]:Huangpu River is a multifunctional plain tidal river connecting Taihu Lake and Yangtze River Estuary. It flows through downtown Shanghai. The main stream is 113.4 km. long. In order to reveal the extent of pollution from an ecological point of view, the fish biological integrity index (F-IBI) was used to evaluate the health status of its aquatic ecosystem. In November 2013 and July 2014, the net was used. A total of 8 816 fishes were collected from 7 sections of Huangpu River by three layers Gill net and trawl. There are 38 species, belonging to 6 orders and 12 families, including 24 species of Cyprinidae, 7 species of Perciformes and 4 species of Siluridae. The F-IBI evaluation system composed of 9 indexes was constructed by discriminant analysis and correlation screening. The results show that the water ecosystem of the upper reaches of Huangpu River is in a "good" state, the middle reaches and estuaries are between "average" and "bad", but the lower reaches are "worse". In spring, there are three "good" or "poor" segments, and one section "average", and in autumn there are 4 "general", 2 "poor" and only one "good". The evaluation also shows that among the three major tributaries in the upper reaches of Huangpu River, the section of Songpu Bridge, which provides about 30% raw water for Shanghai, is "poor" or "general" because of the "difference" in the inclined ponds to undertake the coming water from Taihu Lake. Therefore, protecting the water quality of Dianshan Lake and Taihu Lake is the key to ensure the safety of the source water in the upper reaches of Huangpu River.
【作者单位】： 上海海洋大学鱼类研究室上海市海洋动物系统分类与进化重点实验室;
【基金】：上海市水务局黄埔江河流健康评估项目 国家自然科学基金项目(31472280)~~
【分类号】：X826
，
本文编号：2259864
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