王艳梅, 王丹丹, 嵇英, 等. 淮安白马湖国家湿地公园维管植物区系及群丛特征研究[J]. 西南林业大学学报(自然科学), 2024, 44(6): 1–9 . DOI: 10.11929/j.swfu.202401030
引用本文: 王艳梅, 王丹丹, 嵇英, 等. 淮安白马湖国家湿地公园维管植物区系及群丛特征研究[J]. 西南林业大学学报(自然科学), 2024, 44(6): 1–9 . DOI: 10.11929/j.swfu.202401030
Wang Yanmei, Wang Dandan, JI Ying, Yang Longfei, Liu Shuyan, Chen Bin. Flora and association characteristics of vascular pants in Jiangsu Huai'an Baima Lake National Wetland Park[J]. Journal of Southwest Forestry University. DOI: 10.11929/j.swfu.202401030
Citation: Wang Yanmei, Wang Dandan, JI Ying, Yang Longfei, Liu Shuyan, Chen Bin. Flora and association characteristics of vascular pants in Jiangsu Huai'an Baima Lake National Wetland Park[J]. Journal of Southwest Forestry University. DOI: 10.11929/j.swfu.202401030

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淮安白马湖国家湿地公园维管植物区系及群丛特征研究

Flora and association characteristics of vascular pants in Jiangsu Huai'an Baima Lake National Wetland Park

  • 摘要: 采用样线法和样方法,于2022年夏季和2023年春季对该湿地公园中的维管植物进行了系统调查。基于调查数据,采用双向指示种分析法划分群丛类型后进行多样性计算。结果表明:本次调查共记录69科161属232种野生维管植物,8个优势科所含物种数占总物种数的50.86%,单物种记录的属所含物种数之和占总物种数的一半。在这232种维管植物中,草本、典型木本和木质藤本植物的物种数依次为201、28和3种,中生、水生及湿生植物分别有176、28和28种。在科级区系分布区类型中,世界广布科占绝对优势(58.21%);在属级区系分布区类型中,温带分布属占优势(39.00%),热带分布属次之(33.96%);在种级区系分布区类型中,温带分布种则占绝对优势(54.35%)。春季,有16种主要植物群丛,其中,野老鹳草(Geranium carolinianum)群丛的物种数最多,而救荒野豌豆(Vicia sativa)群丛的生物多样性指数值较大,菰(Zizania latifolia) + 狐尾藻(Myriophyllum verticillatum)群丛分布最广;夏季,有12种主要植物群丛,其中,喜旱莲子草(Alternanthera philoxeroides) + 稗(Echinochloa crus-galli)群丛的物种数最多,紫萍(Spirodela polyrhiza) + 浮萍(Lemna minor)群丛的生物多样性指数值较大,水烛(Typha angustifolia) + 芦苇(Phragmites australis)群丛分布最广。江苏淮安白马湖国家湿地公园的维管植物物种较丰富,但水生及湿生植物物种占比较少,外来入侵种较多;公园内草本植物群丛类型季节变化明显。

     

    Abstract: By investigating vascular plant species composition and association characteristics of Jiangsu Huai'an Baima Lake National Wetland Park, this study aims to provide fundamental data and scientific bases for the biodiversity conservation of this Ramsar Site. A systematic survey based on transect and quadrat methods was conducted in the wetland park in the summer of 2022 and the spring of 2023. Based on this survey data, diversity calculations were performed after delineating cluster types using Two-Way Indicator Species Analysis (TWINSPAN). The park hosted a total of 232 species of wild vascular plants from 161 genera and 69 families. 8 dominant families accounted for 50.86% of the total number of species; genera with one-species-record accounted for half of the pool. The numbers of herbaceous, typical woody and woody lianas were 201, 28, and 3, respectively; there were 176 mesophytes, 28 hydrophytes and 28 hygrophytes. Cosmopolitan type was the major floral component at the family level, whereas temperate areal type was the major component at both genus and species levels. In spring, there were 16 major associations, and Ass. Geranium carolinianum had the highest species abundance while Ass. Vicia sativa had the highest species diversity indices. Ass. Zizania latifolia + Myriophyllum verticillatum was the most widely distributed. In summer, there were 12 major plant associations, and Ass. Alternanthera philoxeroides + Echinochloa crus-galli had the highest species abundance while Ass. Spirodela polyrhiza + Lemna minor had the highest species diversity indices. Ass. Typha angustifolia + Phragmites australis was the most widely distributed. Jiangsu Huai'an Baima Lake National Wetland Park is rich in vascular plant species diversity, but has a higher proportion of invasive species and a lower proportion of hydrophytes. The plant association types are also diverse, and significantly varied between seasons.

     

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