忻州市秋季浮游植物多样性分析及评价

doi:10.14088/j.cnki.issn0439-8114.2023.10.008

摘要/Abstract

摘要： 对山西省忻州市重点河流和水库2020年秋季浮游植物进行调查,并对其多样性进行分析。结果表明,河流共有浮游植物8门111种,细胞密度范围在0.009×10⁶~13.110×10⁶ cells/L,平均密度为3.299×10⁶ cells/L;水库中鉴定出浮游植物8门125种,细胞密度范围在0.205×10⁶~17.310×10⁶ cells/L,平均密度为6.526×10⁶ cells/L。取样点所系流域的优势种为类颤藻鱼腥藻（Anabaena oscillarioides）、假鱼腥藻（Pseudanabaena sp.）、尖尾蓝隐藻（Chroomonas acuta）、卵形隐藻（Chroomonas acuta）、尖针杆藻（Synedra acus）、舟形藻（Navicula capitatoradiata）、弯形小尖头藻（Raphidiopsis sinensia）、普通等片藻原变种（Diatoma vulgare var. vulgure）。浮游植物生物量和细胞密度空间上分布不均。据忻州市水系浮游植物Shannon-Wiener多样性指数、Pielou均匀度指数和Margalef丰富度指数可知,水库中浮游植物资源均较丰富,结构较稳定,且生物多样性优于河流。22个采样点以轻度和中度污染为主。

关键词: 浮游植物, 群落结构, 多样性, 忻州市

Abstract: The species of phytoplankton in typical rivers and reservoirs in Xinzhou City of Shanxi Province in autumn of 2020 were investigated, and their diversity was analyzed. The results revealed that in total 111 species and 8 phyla existed in rivers while 125 species and 8 phyla were found in reservoirs, providing the cell densities ranging within （0.009~13.110） ×10⁶ cells/L, along with an average density of 3.299×10⁶ cells/L in rivers, and the counterparts for reservoirs were（0.205~17.310）×10⁶ cells/L and 6.526×10⁶ cells/L respectively. As estimated, the universal dominant species in the sampling sites which represented the related drainage basin included Anabaena oscillarioides, Pseudanabaena sp., Chroomonas acuta, Chroomonas acuta, Synedra acus, Navicula capitatoradiata, Raphidiopsis sinensia, and Diatoma vulgare var. vulgure. It was concluded that the biomass and cell density of phytoplankton were spatially unevenly distributed as well. According to Shannon-Wiener diversity index, Pielou uniformity index and Margalef richness index applied to calculate the overall phytoplankton diversity index of Xinzhou City, the phytoplankton resources in the reservoirs were basically abundant, the structure was practically stable, and the biodiversity was better than that of the rivers. The water quality of 22 sampling sites was mainly in the state of mild and moderate pollution.

Key words: phytoplankton, community structure, diversity, Xinzhou City

中图分类号:

Q948.8
X143

刘帅, 赵燕楚, 黄艳凤, 张邓壮, 石雅峰. 忻州市秋季浮游植物多样性分析及评价[J]. 湖北农业科学, 2023, 62(10): 37-44.

LIU Shuai, ZHAO Yan-chu, HUANG Yan-feng, ZHANG Deng-zhuang, SHI Ya-feng. Analysis and evaluation of phytoplankton diversity in Xinzhou City in autumn[J]. HUBEI AGRICULTURAL SCIENCES, 2023, 62(10): 37-44.

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