| 鄱阳湖大型底栖动物时空演变特征及驱动因素 |
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| 引用本文： | 邹亮华,邹伟,张庆吉,李颖,龚志军,张艳杰,鲁顺保,蔡永久. 鄱阳湖大型底栖动物时空演变特征及驱动因素[J]. 中国环境科学, 2021, 41(6): 2881-2892 |
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| 作者姓名： | 邹亮华 邹伟 张庆吉 李颖 龚志军 张艳杰 鲁顺保 蔡永久 |
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| 作者单位： | 1. 江西师范大学生命科学学院, 江西 南昌 330027;2. 中国科学院南京地理与湖泊研究所, 中国科学院流域地理学重点实验室, 江苏 南京 210008;3. 南京大学地理与海洋科学学院, 江苏 南京 210023;4. 西南大学地理科学学院, 重庆 400715 |
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| 基金项目： | 中国科学院战略性先导科技专项（A类）（XDA23040203）；国家自然科学基金资助项目（32071572，31660072，31760136）；江西省自然科学基金资助项目（20201BAB204237）；江西省教育厅基金（GJJ160312，GJJ170198） |
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| 摘 要： | 于2019年7月对鄱阳湖133个样点大型底栖动物进行调查,分析其群落结构与环境因子之间的关系.结果表明,共记录底栖动物48种,隶属7纲16目22科38属,全湖底栖动物的平均密度和生物量分别为158.38ind/m2和173.76g/m2,现阶段优势种主要为河蚬、铜锈环棱螺和大沼螺.将全湖分为5个湖区:北部湖区、西北部湖...
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| 关 键 词： | 鄱阳湖 大型底栖动物 群落结构 生物多样性 环境因子 |
| 收稿时间： | 2020-09-20 |
Characteristics and driving factors of spatiotemporal succession of macrozoobenthos in Poyang Lake |
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| ZOU Liang-hua,ZOU Wei,ZHANG Qing-ji,LI Ying,GONG Zhi-jun,ZHANG Yan-jie,LU Shun-bao,CAI Yong-jiu. Characteristics and driving factors of spatiotemporal succession of macrozoobenthos in Poyang Lake[J]. China Environmental Science, 2021, 41(6): 2881-2892 |
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| Authors: | ZOU Liang-hua ZOU Wei ZHANG Qing-ji LI Ying GONG Zhi-jun ZHANG Yan-jie LU Shun-bao CAI Yong-jiu |
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| Affiliation: | 1. College of Life Sciences, Jiangxi Normal University, Nanchang 330027, China;2. Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography & Limnology, Chinese Academy of Sciences, Nanjing 210008, China;3. School of Geography & Ocean Science, Nanjing University, Nanjing 210023, China;4. School of Geography science, Southwest University, Chongqing 400715, China |
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| Abstract: | Macrozoobenthos community and environmental variables were investigated at 133 sites in Poyang Lake in July 2019. The relationships between macrozoobenthic community structure and environmental factors were examined. A total of 48 species belonging to 7 classes, 16 orders, 22 families and 38 genera were recorded. The average density and biomass of macrozoobenthos were 158.38 ind/m2 and 173.76g/m2, respectively, mainly dominated by Corbicula fluminea,Parafossarulus eximius and Bellamya aeruginosa. In terms of spatial patterns, the whole lake was divided into five areas, including northern, northwest, central, eastern and southern lake areas. One-way ANOVA analysis detected significant differences of physicochemical variables among the five lake areas, while no significant differences in sediment parameters. The community structure of benthic animals among the five lake areas also varied significantly as indicated by one-way analysis of similarity (ANOSIM). Regarding to biodiversity indexes, significantly higher values in northern lake were found than those in other lake areas. Canonical correspondence analyses (CCA) showed that water depth, dissolved oxygen, turbidity, total phosphorus, chlorophyll a, loss on ignition, and sediment type were significantly related to the community structure of macrozoobenthos. In the long term, the biodiversity of macrozoobenthos in Poyang Lake has declined significantly compared with those in their historical condition, with the dominated species changed from large molluscs to small molluscs and insects. Sand mining, changes in hydrological conditions and decline of aquatic vegetation were the main environmental factors regulating the spatiotemporal succession of the macrozoobenthic community structure in Poyang Lake. |
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| Keywords: | Poyang Lake macrozoobenthos community structure biodiversity environmental factors |
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