乌梁素海底栖动物群落组成、β多样性及驱动因素  

Variation in benthic community composition,beta diversity,and driving factors in Lake Ulansuhai

作　　者：杜彩丽 崔江龙 李国文[1] 赵琛 张列宇[1] DU Cai-li;CUI Jiang-long;LI Guo-wen;ZHAO Chen;ZHANG Lie-yu(State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution,Chinese Research Academy of Environmental Sciences,Beijing 100012,China)

机构地区：[1]中国环境科学研究院,国家环境保护地下水污染过程模拟与控制重点实验室,北京100012

出　　处：《中国环境科学》2024年第11期6313-6321,共9页China Environmental Science

基　　金：内蒙古自治区科技计划项目(2022YFHH0109)。

摘　　要：本文对干旱区湖泊乌梁素海底栖动物群落结构、β多样性及其组成开展了相关调查,并通过Mantel检验了环境因子/空间因素对底栖动物β多样性的影响.结果显示,乌梁素海底栖动物群落结构组成具有显著的季节差异,差异分析也表明底栖动物生物量以及多样性指数存在差异(P<0.05);乌梁素海底栖动物群落β多样性维持在较高水平且以周转组分占主导,占比达80%以上;Mantel检验表明,空间地理距离对底栖动物群落β多样性无显著影响(P>0.05),相反水体环境因子(主要是总氮)与底栖动物β多样性及其周转组分呈现正相关,这表明环境因素是影响乌梁素海底栖动物群落结构的主要因素.The study investigated the benthic community structure,β-diversity and its composition in Lake Ulansuhai,and the effects of environmental/spatial factors on benthicβ-diversity were analyzed by the Mantel test.The results showed that the benthic community structure in Lake Ulansuhai had significant seasonal differences,and the variance analysis also showed that there were differences in the biomass and diversity index for zoobenthos.Theβ-diversity of the benthic community in the Lake Ulansuhai was maintained at a high level and dominated by the turnover component,with the ratio of the turnover component reaching 80%.Mantel's test showed that the geographic distance did not have a significant effect on theβ-diversity in the benthic community(P>0.05).In contrast,environmental factors(mainly total nitrogen)in the water were positively correlated with benthicβ-diversity and its turnover component,which indicated that environmental factors were the main drivers affecting the structure of benthic communities in Lake Ulansuhai.

关 键 词：乌梁素海 底栖动物 beta多样性 驱动因素 

分 类 号：X524[环境科学与工程—环境工程]