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引用本文:高攀,周忠泽,马淑勇,孙庆业,许仁鑫.浅水湖泊植被分布格局及草-藻型生态系统转化过程中植物群落演替特征:安徽菜子湖案例.湖泊科学,2011,23(1):13-20. DOI:10.18307/2011.0103
GAO Pan,ZHOU Zhongze,MA Shuyong,SUN Qingye,XU Renxin.Vegetation distribution pattern and community succession in the transition from macro-phyte-to phytoplankton-dominated state in shallow lakes, a case study of Lake Caizi in Anhui Province. J. Lake Sci.2011,23(1):13-20. DOI:10.18307/2011.0103
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浅水湖泊植被分布格局及草-藻型生态系统转化过程中植物群落演替特征:安徽菜子湖案例
高攀, 周忠泽, 马淑勇, 孙庆业, 许仁鑫
安徽大学生命科学学院生物多样性与湿地生态研究所, 安徽省生态工程与生物技术重点实验室, 合肥 230039
摘要:
2005年9月-2009年10月对菜子湖湿地植被分布格局及种类组成进行调查, 结合近十年的监测数据, 分析了菜子湖水生植物群落的演替过程和驱动因素.结果表明:菜子湖维管植物共有147种, 隶属于42科101属.植被分布格局为:①中部水位较深的区域, 以马来眼子菜群丛, 黑藻群从等沉水植物群落和野菱群丛等根生浮叶植物群落为主;②靠近岸边浅水区以菰群丛、荭蓼+酸模叶蓼群丛等挺水植物群落和善菜群丛等根生浮叶植物群落为主;③春季湖滩以肉根毛茛群从、陌上营群丛和朝天委陵菜群丛为优势的湿生植物群落为主, 并且三者在滩涂沿高程梯度呈带状分布.湖滩上还间有藕草群丛.群落演替系列为:①沉水植物群落阶段, 黑藻+苦草(1999-2004年);②浮叶植物群落阶段, 菱+莕菜(2005-2007年);③少量的沉水植物群落阶段, 马来眼子菜(2008-2009年);④草型向藻型湖泊生态系统过渡阶段(2009年以后).藕草最近5年在菜子湖呈扩张趋势.演替的驱动力为围网养殖、围湖造田、水利工程等人为因素。
关键词:  湿地植被  种类组成  分布格局:群落演替  菜子湖
DOI:10.18307/2011.0103
分类号:
基金项目:中国-欧盟生物多样性示范项目(00056783)、水体污染控制与治理科技重大专项子课题项目(2009ZX07103-002)、安徽省自然科学基金项目(090415202)和安徽省教育厅重点基金项目(KJ2008A043)联合资助
Vegetation distribution pattern and community succession in the transition from macro-phyte-to phytoplankton-dominated state in shallow lakes, a case study of Lake Caizi in Anhui Province
GAO Pan, ZHOU Zhongze, MA Shuyong, SUN Qingye, XU Renxin
Institute of Biodiversity and Wetland Ecology, School of Life Science, Anhui University, Anhui Key Laboratory of Eco-engineering and Bio-technique, Hefei 230039, P.R.China
Abstract:
Species composition and vegetation distribution patterns of Lake Caizi were investigated during September 2005 to October 2009.Combining with the data of neariy ten years monitoring, the succession of macrophyte communities and its driving factors were analyzed in Lake Caizi.There are 147 vascular plant species belonging to 101 genera in 42 families.The vegetation distribution pattern exhibited the following characteristics;1) the dominant associations of submerged plant communities(Potamogeton malaianus and Hydrilla verticillata) and floating plant communities(Trapa bispinosa) in the central areas of lake with deeper water level;2) the dominant associations of emergent plant communities (Zizania caduciflora and Polygonum orientale+P.lapathifolium) and floating plant communities (Nymphoides peltata) near the shore areas with shallow level;and 3) the dominant associations of wetland plant communities(Ranunculus polii, Carex thunbergii and Potentiua supina) on the lake beach in spring.The patchy area of Phaldris arundinacea distributed on the beach, and the communities succession exhibited the following series:1) submerged plant communitie stage with the dominant associations of Vallisineria natans+Hydrilla verticillata;2) floating plant communitie stage, T.bispinosa+N.peltatum;3) the stage of several submerged plant communities, P.malaianus;4) the transition stage from macrophjrte-dominated to phytoplankton-dominated.The distribution area of P.arundinacea had expanded in the past 5 years.The driving force of succession was human factors as aquaculture, reclaim-ation, as well as hydrological changes, etc.
Key words:  Wetland vegetation  species composition  distribution patterns  community succession  Lake Caizi
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