塔里木大学学报2024，Vol.36Issue(1)：84-92,9.DOI:10.3969/j.issn.1009-0568.2024.01.010
新疆上游水库浮游植物群落结构与环境因子关系
The relationship of phytoplankton community structure and related environmental factors in upstream reservoirs of Xinjiang
摘要
Abstract
This study intends to grasp the distribution characteristics of phytoplankton in upstream reservoir and understand the ecolog-ical status of the reservoir area.Phytoplankton collection was conducted on August 13,2021(high-water season)and May 3,2022(low-water season)in upstream reservoir.The relationship between phytoplankton community structure and environmental factors in upstream reservoirs explore by redundancy analysis(RD A).The results showed that a total of 29 genera and 40 species of phytoplank-ton in 6 phyla were identified in 5 typical water sections of the upper reservoir.At the phyla level,Bacillariophyta was the dominant population in both water periods,accounting for 40.00％of the total classes.Chlorophyta and Cyanophyta account for 27.50％and 20.00％of the full courses.Euglenophyta,Phaeothamnion,and Cryptophyta were less abundant than the above species.At the species level,the dominant species were Cyclotella meneghiniana,Cymbella sp.and Nitzschia palea.The differences in phytoplankton commu-nity structure between the two water periods were significant(P＜0.05),and the number of species and biomass were higher in the low-water season than in the high-water period.The phytoplankton biomass and density analysis evaluated that the upstream reservoir was nutrient-poor.The planktonic Shannon-wiener index was 2.83,the Margalef index was 2.97,and the Pielou index was 0.56.The RDA results indicated that electrical conductivity(EC),water temperature(WT),and dissolved oxygen(DO)were the main envi-ronmental factors influencing the changes in phytoplankton communities in the upstream reservoir.This study aims to provide a scientif-ic basis for enriching the ecological diversity of the upstream reservoir waters and maintaining their sustainable development.关键词
上游水库/浮游植物/多样性/环境因子Key words
upstream reservoirs/phytoplankton/diversity/environmental factors分类
农业科技引用本文复制引用
訾方泽,葛建民,王新月,刘斐,宋勇,张蝶燕,林旭元,陈生熬..新疆上游水库浮游植物群落结构与环境因子关系[J].塔里木大学学报,2024,36(1):84-92,9.基金项目
新疆生产建设兵团科技局重点领域科技攻关计划项目(2022DB019) （2022DB019）
兵团农业农村局科学合理发展大水面增值渔业项目(BTSCDC20210001) （BTSCDC20210001）
