应用浮游植物生物完整性指数评价长江上游河流健康
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- 英文论文题名：Ecological health assessment of the upper reaches of the Yangtze River, based on biotic integrity index of phytoplankton
- 论文作者：谭巧 ; 马芊芊 ; 李斌斌 ; 吕红健 ; 付梅 ; 姚维志
- 英文论文作者：TAN Qiao ; MA Qianqian ; LI Binbin ; Lü Hongjian ; FU Mei ; YAO Weizhi ; School of Animal Science and Technology ; Research Central of Fishery Resources and Environment ; Key Laboratory of Aquatic Science of Chongqing ; Southwest University
- 年：2016
- 作者机构：西南大学动物科技学院西南大学渔业资源环境研究中心水产科学重庆市重点实验室;
- 论文关键词：长江上游 ; 浮游植物 ; 生物完整性指数 ; 生态系统健康评价
- 英文论文关键词：the upper reaches of the Yangtze River ; phytoplankton ; index of biotic integrity ; ecosystem health assessment
- 会议召开时间：2016-11-02
- 会议录名称：2016年中国水产学会学术年会论文摘要集
- 语种：中文
- 分类号：X826;Q948.8
- 学会代码：OGSB
- 会议名称：2016年中国水产学会学术年会
- 会议地点：中国四川成都
- 主办单位：中国水产学会、四川省水产学会
- 学会名称：中国水产学会
- 页数：1
- 文件大小：505k
- 原文格式：D
- 会议级别：全国
摘要
2013年11月至2014年6月对长江上游宜宾至江津段五个断面的浮游植物进行了四次调查,共鉴定出浮游植物6门38属95种。对13个备选指标进行分布范围、判别能力及Pearson相关性分析,构建了适合长江上游的浮游植物生物完整性指数(P-IBI)指标体系:即香农多样性指数、Margalef丰富度指数、Pielou均匀度指数、浮游植物密度、硅藻密度百分比等五个参数指标。采用3分制法、4分制法和比值法分别对生物指标计分,评价结果表明:高庄桥、羊石处于"健康"状态;白沙处于"亚健康"状态;而江安、德感处于"亚健康"向"一般"过渡状态。综合来看,三种评价方法所反映各样点的健康状况基本一致,只是4分制法和比值法在划分评价等级上更细致,评价结果更精确。Pearson相关性分析显示:TN与IBI值呈显著负相关(P<0.05)。
In the present study, phytoplankton samples were collected from the upper reaches of the Yangtze River during four consecutive seasons, from November 2013 to June 2014. And based on the distributing range, discriminatory power and Pearson's correlation analysis of the 13 candidate indexes, five metrics, including Shannon-Wiener index, Margalef index, Pielou index,density of phytoplankton, percentage of bacillariophyta were selected to establish biotic integrity index of phytoplankton(P-IBI). Three score system, four score system and ratio score system were used to get the metrics into a uniform score for all the sampling sites, and the results showed that Gao Zhuangqiao and Yang Shi were in the state of health, Bai Sha in sub-health, and Jiang An and De Gan in the sub-health to good-fair transitional phase. On the whole, the health state of each sampling sites reflected by the three scoring methods almost the same. However, four score system and ratio score system were more accurate. The Pearson's correlation analysis showed that the IBI was significantly negative correlated with TN(P<0.05).
In the present study, phytoplankton samples were collected from the upper reaches of the Yangtze River during four consecutive seasons, from November 2013 to June 2014. And based on the distributing range, discriminatory power and Pearson's correlation analysis of the 13 candidate indexes, five metrics, including Shannon-Wiener index, Margalef index, Pielou index,density of phytoplankton, percentage of bacillariophyta were selected to establish biotic integrity index of phytoplankton(P-IBI). Three score system, four score system and ratio score system were used to get the metrics into a uniform score for all the sampling sites, and the results showed that Gao Zhuangqiao and Yang Shi were in the state of health, Bai Sha in sub-health, and Jiang An and De Gan in the sub-health to good-fair transitional phase. On the whole, the health state of each sampling sites reflected by the three scoring methods almost the same. However, four score system and ratio score system were more accurate. The Pearson's correlation analysis showed that the IBI was significantly negative correlated with TN(P<0.05).
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