Vascular Plant Flora of Wetland in Yangshan of Haikou City

YIN Hanyi; SHEN Yichun; JU Qingqing; ZHOU Peng

doi:10.15886/j.cnki.rdswxb.2019.02.011

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A floristic study of Yangshan Wetland in Haikou, Hainan Province, China was made from the aspects of plant species composition and geographical composition through field investigation, specimen textual research and literature consulting to have a good picture of the plant resources and floristic characteristics of Yangshan Wetland. The results showed thatYangshan wetland has a high species diversity, including 687 species of vascular plants belonging to 119 families, 413 genera and 687 species. Of the species5 are endemic species inHainan, accounting for 0.73% of the total tree species. Gramineae, Compositae, Moraceae and Rubiaceae are the main families of vascular plants in Yangshan Wetland. The main genera are Ficus, Cyperus, Polygonum and Syzygium. The main flora of wild vascular plants in Yangshan Wetland is tropical, and its tropical compositions accounted for 90.12% of the total families（exclusive of families worldwide distributed） and 90.5% of the total genera（exclusive of genera worldwide distributed）, respectively. The temperate floristic composition is low, accounting for 9.88% and 8.97% of the total families and genera, respectively, reflecting the tropical marginal nature and a weak tropical trend.

Vascular Plant Flora of Wetland in Yangshan of Haikou City

College of Horticulture and Landscape Architecture, Hainan University, Haikou, Hainan 570228, China

Received Date: 2019-01-07

Rev Recd Date: 2019-04-16

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Abstract: A floristic study of Yangshan Wetland in Haikou, Hainan Province, China was made from the aspects of plant species composition and geographical composition through field investigation, specimen textual research and literature consulting to have a good picture of the plant resources and floristic characteristics of Yangshan Wetland. The results showed thatYangshan wetland has a high species diversity, including 687 species of vascular plants belonging to 119 families, 413 genera and 687 species. Of the species5 are endemic species inHainan, accounting for 0.73% of the total tree species. Gramineae, Compositae, Moraceae and Rubiaceae are the main families of vascular plants in Yangshan Wetland. The main genera are Ficus, Cyperus, Polygonum and Syzygium. The main flora of wild vascular plants in Yangshan Wetland is tropical, and its tropical compositions accounted for 90.12% of the total families（exclusive of families worldwide distributed） and 90.5% of the total genera（exclusive of genera worldwide distributed）, respectively. The temperate floristic composition is low, accounting for 9.88% and 8.97% of the total families and genera, respectively, reflecting the tropical marginal nature and a weak tropical trend.

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Vascular Plant Flora of Wetland in Yangshan of Haikou City

doi: 10.15886/j.cnki.rdswxb.2019.02.011

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