三峡库区支流龙河和汝溪河浮游植物功能群的季节动态特征及其与环境的相关关系
SEASONAL DYNAMICS OF PHYTOPLANKTON FUNCTIONAL GROUPS IN TRIBUTARIES OF THE THREE GORGES RESERVOIR:LONGHE RIVER AND RUXI RIVER,AND THEIR CORRELATIONS WITH ENVIRONMENTAL FACTORS
摘要
Abstract
According to the environmental characteristics of different seasons,this study conducted surveys on phyto-plankton and water environment in Longhe River and Ruxi River during spring(March),summer(July),autumn(September),and winter(November)in 2021.The results showed that 111 phytoplankton species were collected in Longhe River,belonging to 6 phyla.A total of 142 species of phytoplankton were collected from Ruxi River,belong-ing to 7 phyla.According to Padisak theory,23 phytoplankton functional groups were identified in both Longhe River and Ruxi River.The seasonal changes of dominant functional groups of phytoplankton in Longhe River were as follows:spring(B,Lo,MP,X1)→summer(D,J,SN,TB)→autumn(D,J,MP,P,TB)→winter(B,D,MP,TB).The seasonal changes in Ruxi River were as follows:spring(B,D,X1,X2)→ summer(G,J,S1,X2)→autumn(S1,G,P)→winter(D,J,MP,S1).The backwater areas of the Longhe River and Ruxi River were affected by the impoundment of the Three Gorges Project,leading to greater similarity in phytoplankton functional group composition.According to the redundancy analysis of phytoplankton functional groups and environmental factors,water temperature(WT),dissolved oxygen(DO),pH,ammonium nitrogen(NH4+-N),and phosphate(PO43--P)were the main factors affecting the phyto-plankton distribution in the two rivers.This study provides a theoretical basis for protecting the aquatic ecosystem of the Yangtze River.关键词
浮游植物/功能群/季节动态/三峡库区Key words
Phytoplankton/Functional groups/Seasonal dynamics/the Three Gorges Reservoir分类
生物学引用本文复制引用
刘香正,史邵华,张茟渲,王佳慧,马兰,黄钰轩,刘梅,阿依巧丽,曾波..三峡库区支流龙河和汝溪河浮游植物功能群的季节动态特征及其与环境的相关关系[J].水生生物学报,2025,49(5):134-145,12.基金项目
水利部三峡工程运行安全综合监测重点支流水质水生态监测(JJ2013-016) （JJ2013-016）
国家科技基础性工作专项(2014FY1202002) （2014FY1202002）
国务院三峡办三峡后续工作库区生态与生物多样性保护专项(500002013BB5200002) （500002013BB5200002）
重庆市大学生创新创业训练计划项目(S202410635411)资助[Supported by the Key Tributaries Water Quality and Ecological Monitoring Programme in Operation Safety Comprehensive Monitoring of the Three Gorges Project by Ministry of Water Resources(JJ2013-016) （S202410635411）
National Science and Tech-nology Basic Work Special Project(2014FY1202002) （2014FY1202002）
Project for Ecological and Biodiversity Conservation in the Three Gorges Reservoir Area by State Council Three Gorges Project Construction Committee Executive Office(500002013BB5200002) （500002013BB5200002）
Chongqing College Student Innovation and Entrepreneurship Training Programme(S202410635411)] （S202410635411）
