[1]李轩,蒋涛阳,王测文,等.景观水体附植藻类群落变化及与环境因子的关系[J].中国给水排水,2023,39(23):111-117.
LIXuan,JIANGTao-yang,WANGCe-wen,et al.Change of Epiphytic Algal Community and Its Relationship with Environmental Factors in Landscape Water[J].China Water & Wastewater,2023,39(23):111-117.
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LIXuan,JIANGTao-yang,WANGCe-wen,et al.Change of Epiphytic Algal Community and Its Relationship with Environmental Factors in Landscape Water[J].China Water & Wastewater,2023,39(23):111-117.
景观水体附植藻类群落变化及与环境因子的关系
中国给水排水[ISSN:1000-4062/CN:12-1073/TU]
卷:
第39卷
期数:
2023年第23期
页码:
111-117
栏目:
出版日期:
2023-12-01
- Title:
- Change of Epiphytic Algal Community and Its Relationship with Environmental Factors in Landscape Water
- Keywords:
- landscape water; epiphytic algae; biomass; community composition; environmental factors; autumn and winter
- 摘要:
- 为了解秋冬季节景观水体附植藻类与环境因子的关系，以重庆市典型人工景观水体为研究对象，对秋冬季（2019年9月—2020年1月）该景观水体沉水植物上附植藻类生物量、物种组成及其环境因子进行分析。结果表明，10月中旬为景观水体附植藻类秋季暴发高峰，1月为冬季暴发高峰且生物量为秋季峰值的1.9 倍。景观水体4 个采样点在采样期间共鉴定出附植藻类4 门21 属，其中硅藻门9 属、绿藻门7 属、蓝藻门4 属、裸藻门1 属。秋季采集到附植藻类3 门14 属，冬季采集到附植藻类4 门16 属。秋季常见的附植藻类有4 属，分别为颤藻（Oscillatoria sp.）、针杆藻（Synedra sp.）、曲壳藻（Achnanthes sp.）、异极藻（Gomphonema sp.）；冬季常见的附植藻类有2 属，为颤藻（Oscillatoria sp.）、曲壳藻（Achnanthes sp.）。多元回归分析结果表明，对于重庆典型景观水体，影响秋冬两季附植藻类生物量的主要环境因子为pH和总氮。秋季影响附植藻类生物量的主要环境因子为水温和氨氮，冬季为照度、总氮和水温。秋冬季节影响附植藻类的环境因子具有差异。上述结果表明，秋冬季节景观水体水环境变化对附植藻类的生物量和群落组成具有重要影响。
- Abstract:
- This paper analyzed the biomass, algal community composition and related environmental factors of epiphytic algae on submerged plants in a typical artificial landscape water body in Chongqing from autumn (September 2019) to winter (January 2020), so as to explore the relationship between the epiphytic algae and environmental factors in landscape water during autumn and winter. The peak of the autumn epiphytic algae bloom in the landscape water was in mid-October. In contrast, the peak of the winter algae bloom was in January, and the biomass in winter was 1.9 times that in autumn. A total of 4 phyla and 21 genera were identified from 4 sampling sites during the sampling period, including 9 genera belonging to Bacillariophyta, 7 genera belonging to Chlorophyta, 4 genera belonging to Cyanobacteria and 1 genus belonging to Euglenophyta. In autumn, 14 genera belonging to 3 phyla were identified, and 16 genera belonging to 4 phyla were identified in winter. Four common genera were identified in autumn, namely Oscillatoria sp., Synedra sp., Achnanthes sp. and Gomphonema sp., and two common genera (Oscillatoria sp. and Achnanthes sp.) were identified in winter. The multiple regression analysis revealed that pH and total nitrogen were the main environmental factors affecting the biomass of epiphytic algae in the typical landscape water in Chongqing in autumn and winter. The main environmental factors affecting the biomass of the epiphytic algae were water temperature and ammonia nitrogen in autumn, while those were illuminance, total nitrogen and water temperature in winter, indicating that the environmental factors affecting the biomass of epiphytic algae were different in autumn and winter. These results indicated that the changes of landscape water environment in autumn and winter had an important impact on the biomass and community composition of epiphytic algae.
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更新日期/Last Update:
2023-12-01