长坑水库浮游植物群落特征及其环境驱动因素分析

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关键词水质；浮游植物；群落结构；生物多样性；环境因子；长坑水库

中图分类号X173文献标识码A

文章编号 0517-6611（2026）01-0067-06

doi：10.3969/j. issn.0517-6611. 2026.01. 013

开放科学（资源服务）标识码（OSID）：

Analysis of Phytoplankton Community Characteristics and Its Environmental Driving Factors in Changkeng Reservoir LINJun-kai，CHENHao-peng，XIEJin-xiongetal（ShenzenShenshan SpecialCoperation Zone DeepwaterWaterCo.，Ld.henzhen，Guangdong 518200）

AbstractThewaterqualityandphytoplanktonstatusofChangkengReservoirwereinvestigatedduringthedryseasonfrom MarchtoApril 2024，andthepysicochemicalfactorsoftewaterbodyandptoplanktonwereanalyzdusingMantelestsadredundancyanalysis（RDA）， thecharacteristsofthephytoplanktonommunityanditsrelationshipithevironmentvariableswereclarfied.Teesultsshowdat91 species（genera）ofphytoplanktonfrom7phylawererecordedinChangkengReservoirmainlyinthepylaofgrenalgae，diatomsandcyanobacteria，with an average density and biomass of 5.21×106 cells/L and 4.05mg/L ，respectively. The corrected trophic index showed that the reservoirwasmoderatelyutroic.TheSao-Wienrdiversitydex，argalefrchessidandPelouevessindexofpyoakton thereservoire.，Od.seivelyhegealliglledae.ulsofttell ses showed that SD/WD，WT，TN，TP， NH4 -N， Cond and ΔpH were the main environmental variables affecting the structure of phytoplankton community in the reservoir （ P<0.05）

Key wordsWaterquality;Phytoplankton;Communitystructure;Biodiversity;Environmentalfactors;Changkeng Reservoir

浮游植物是水生生态系统中重要的初级生产者，在食物网的物质循环和能量流动过程中发挥着关键作用[]，其群落结构的复杂性和多样性是维持生态系统功能完整性的前提[2]。（剩余11491字）