广西科学2024，Vol.31Issue(2)：258-268,11.DOI:10.13656/j.cnki.gxkx.20231107.001
贵州习水国家级自然保护区大型底栖动物群落结构及水质评价
Macroinvertebrate Community Structure and Water Quality Evaluation in Xishui National Nature Reserve of Guizhou Province
摘要
Abstract
In order to understand the resources and water quality of macrobenthos in Xishui National Nature Reserve of Guizhou Province(hereinafter referred to as the"Xishui Reserve"),the macrobenthos in five man-agement stations of Xishui Reserve were sampled and investigated in July 2022(wet season)and November 2022(normal season).The species composition,dominant species,density,biomass and biodiversity charac-teristics of macrobenthos community structure in Xishui Reserve were analyzed,and the water quality of Xishui Reserve was comprehensively evaluated based on physical and chemical parameters and biological in-dexes of water quality.The evaluation results showed that a total of 45 species of macrobenthos were collect-ed during the wet season and the normal season,belonging to 3 phyla,6 classes,13 orders and 37 families.A-mong them,Insecta accounted for the most(35 species,accounting for 77.80%).The dominant species were Parafossarulus sinensis,Heptagenia sp.,Ecdyonurus sp.,Paragnetina sp.and Baetis sp.In terms of time,the density and biomass in the normal water period were greater than those in the wet period,and the com-munity biodiversity index in the wet period was greater than that in the normal water period.From the per-spective of space,the order of density is Linjiang management station＞Dabaitang management station＞Xi-aoba management station＞Changchagou management station＞Sanchahe management station.The order of biomass size is Linjiang management station＞Xiaoba management station＞Changqiangou management sta-tion＞Sanchahe management station＞Dabaitang management station.The order of Shannon-Wiener diversity index was Dabaitang management station＞Xiaoba management station＞Changqiangou management station＞Sanchahe management station＞Linjiang management station.The results of physical and chemical parameters of water quality show that the water quality of Xishui Reserve is in Class Ⅱ water,and the water quality is good.The Shannon-Wiener diversity index shows that the water quality of the reserve is lightly pol-luted,and the Biological Index(BI)shows that the water quality of the reserve is clean.Combined with the physical and chemical parameters of water quality and the results of the pollution tolerance of the dominant species of macrobenthos in the reserve,this study believes that the results of BI are more in line with the ac-tual water quality of the reserve.The results of this study showe that the macrobenthos in Xishui Reserve are mainly aquatic insects,and the water quality is clean.关键词
大型底栖动物/群落结构/水质评价/贵州习水国家级自然保护区Key words
macroinvertebrate/community structure/water quality assessment/Xishui National Nature Re-serve of Guizhou Province分类
生物科学引用本文复制引用
陈振林,杨卫诚,罗康,熊玲,杨涛,黄玉杰,张高发..贵州习水国家级自然保护区大型底栖动物群落结构及水质评价[J].广西科学,2024,31(2):258-268,11.基金项目
国家自然科学基金项目(30560024),贵州省科学技术基金项目(LKS-2016-7207),贵州省科技支撑计划项目(黔科合支撑[2017]2811号、黔林科合[2022]27号)和贵州省科技重大专项项目(黔科合重大专项字[2016]3022-03号)资助. （30560024）
