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引用本文:林涌权,董旭辉,廖粤军,李燕,羊向东,JeppesenErik.枝角类亚化石揭示的湖北太白湖过去百余年环境演变.湖泊科学,2022,34(4):1372-1383. DOI:10.18307/2022.0427
Lin Yongquan,Dong Xuhui,Liao Yuejun,Li Yan,Yang Xiangdong,Jeppesen Erik.Environmental evolution of Lake Taibai (Hubei Province) over the past century revealed by cladoceran subfossils. J. Lake Sci.2022,34(4):1372-1383. DOI:10.18307/2022.0427
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枝角类亚化石揭示的湖北太白湖过去百余年环境演变
林涌权1, 董旭辉1,2, 廖粤军3, 李燕1,2, 羊向东4, JeppesenErik5
1.广州大学地理科学与遥感学院, 广州 510006;2.广州大学气候与环境变化研究中心, 广州 510006;3.广东省韶关市田家炳中学, 韶关 512026;4.中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室, 南京 210008;5.丹麦奥尔胡斯大学生物科学系, 斯尔克堡 8600
摘要:
近百年来长江中下游地区的浅水湖泊经历了气候变化及日益增强的人类扰动,造成了普遍的湖泊富营养化、水动力条件和水生生态系统的状态转变,水体的生态服务功能明显退化.枝角类作为一种重要的水生生物,敏感地响应于湖泊及其流域的环境变化,但目前对亚热带湖泊中的枝角类亚化石的环境指示意义,与其它古生态指标如硅藻、摇蚊等对环境变化的响应差异尚未明确.因此,本文以浅水湖泊太白湖为研究对象,结合流域历史资料和监测数据,基于沉积岩芯中枝角类群落过去百年来的期演化序列,重建了近百年来太白湖的历史环境演变过程及机制.对比硅藻及摇蚊的群落演化特征,探讨了多门类古生态指标对环境变化的响应差异.本文重点讨论了枝角类对湖泊鱼类产量指示意义及利用枝角类亚化石来重建历史环境的应用前景及不足.
关键词:  太白湖  枝角类  环境变化  古生态  状态转变
DOI:10.18307/2022.0427
分类号:
基金项目:国家自然科学基金面上项目(42171149)、广东省攀登计划项目(pdjh2022a0405)和广东省海外名师项目(2020A1414010320和2020A1414010354)联合资助.
Environmental evolution of Lake Taibai (Hubei Province) over the past century revealed by cladoceran subfossils
Lin Yongquan,Dong Xuhui,Liao Yuejun,Li Yan,Yang Xiangdong,Jeppesen Erik
1.School of Geographical Sciences and Remote Sensing, Guangzhou University, Guangzhou 510006, P. R. China;2.Centre for Climate and Environmental Changes, Guangzhou University, Guangzhou 510006, P. R. China;3.State Key Laboratory of Lake Science and Environment, Nanjing Insititute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P. R. China;4.Department of Bioscience, Aarhus University, Silkeborg 8600, Denmark
Abstract:
During the past century, shallow lakes in the middle and lower reaches of the Yangtze River experienced climate change and increasing human disturbance, resulting in widespread lake eutrophication, regime shifts of hydrodynamic condition and aquatic ecosystem, and significant degradation of their ecological functions. Cladoceran, as an important aquatic organism, is sensitive to environmental changes in lakes and surrounding catchments. However, the environmental significance of cladoceran subfossils in subtropical lakes and their unique response patterns to environmental changes from other paleoecological indicators, such as diatoms and chironomids, are not clear yet. Based on the local historical data and monitoring data, this paper reconstructed the past developing process of environment and mechanism of Lake Taibai in the past 100 years from the subfossil cladoceran communities in a sediment core. With significant differences to the response pattern of diatom and chironomid communities, cladoceran exhibited a more complicated manner along with environmental changes. The significance of cladocerans to fish yield and the potential and limitation of using cladoceran subfossils in reconstructing historical environments are discussed.
Key words:  Lake Taibai  cladoceran  environmental change  paleoecology  regime shift
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