摘要
为分析汉江上游浮游动物群落结构特征及其与环境因子的关系,于2021年5月、11月和2022年4月分别在汉江汉中段设置采样点进行采样调查,研究浮游动物的种类组成和群落结构,并运用相关性分析和冗余分析揭示汉江汉中段浮游动物群落结构的关键驱动因子。结果表明:共检出浮游动物33属46种,轮虫占比50%;浮游动物丰度变化范围为520~810 ind./L,勉县和城固段的物种比中心城区段丰富;浮游动物的Margalef指数为2.65~4.37,Shannon-Wiener指数为2.49~3.65,总体水质属于轻度污染;相关性分析和冗余分析表明,温度、BOD5和磷类营养盐是驱动浮游动物群落结构变化的主要环境因子。
In order to analyze the relationship between zooplankton community structure and environmental factors in the upper section of Hanjiang River,the Hanzhong section was taken as the study area and sampling sites were set in May,2021,November,2021 and April,2022,respectively.The species composition and community structure of zooplankton were studied,and Pearson correlation analysis and redundancy analysis were applied to reveal the key driving factors of zooplankton community structure.The results showed that a total of 46 zooplankton species were identified,among of which,rotifers accounted for 50%.The range of zooplankton density was 520~810 ind./L.There were more species in the Mianxian and Chenggu sections than the central urban section.The Margalef index of zooplankton was 2.65~4.37,and the Shannon-Wiener index was 2.49~3.65.The water quality in the Hanzhong section of the river was light polluted.The results of correlation analysis and redundancy analysis indicated that the main environmental factors driving the zooplankton community structure were temperature,BOD5 and phosphorus nutrients.
作者
王梦琪
岳思羽
张亚宇
胡莉婷
王潇浚
仝佳玥
WANG Meng-qi;YUE Si-yu;ZHANG Ya-yu;HU Li-ting;WANG Xiao-jun;TONG Jia-yue(College of Chemical and Environmental Science,Shaanxi University of Technology,Hanzhong Shanxi 723000,China)
出处
《环境科学导刊》
2023年第3期9-14,共6页
Environmental Science Survey
基金
陕西省大学生创新创业训练计划项目(S202110720062)
陕西理工大学科研项目(SLGRCQD2113)。
关键词
浮游动物
群落结构
环境因子
水质评价
汉江汉中段
zooplankton
community structure
environmental factors
water quality evaluation
the Hanzhong section of Hanjiang River
