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The plant species in eight coastal parks in Xiamen island were investigated by the sample line method and a total of 288 species of plants in eight coastal parks on Xiamen island were obtained, among which 127 were introduced plants, accounting for 44.10% of the total. 80 species of exotic garden plants with invasive potential were obtained. The risk assessment system of invasive ornamental introduced plants in Xiamen island coastal parks was constructed by the literature collation method and expert consultation, and the evaluation index weights were determined by the hierarchical analysis method. The evaluation system includes one target level, five primary indicators and twenty secondary indicators. 80 exotic landscape plants with invasive potential were substituted into the risk assessment system of introduced landscape plants in Xiamen island Coastal Park to obtain the corresponding scores. 13 species with scores between 38.00 and 58.85 were considered high-risk plants. 18 species with scores between 23.00 and 38.00 were medium-risk plants. Nine species with scores between 9.30 and 23.00 were low-risk plants. Four high-risk plants that are not listed in the Chinese Invasive Alien Plant Register should be detected early and controlled with effective management measures. Medium-risk plants should be phased out and replaced with native plants, and low-risk plants should be monitored and managed. Most of the ornamental introduced plants in the eight coastal parks in Xiamen island are low-risk plants. Among them, Wutong Lighthouse Park, Bay Park and Niu Tou Mountain Park are among the top three in the number of applied introduced plant species, and it is recommended that no more ornamental introduced plants be introduced in the future. Music Square had the least number of introduced plants, and it is recommended to introduce low-risk plants to increase the vegetation diversity of the park. This study sorts out the introduced plant species in Xiamen island coastal parks and proposes relevant control suggestions for introduced plants, protects the ecological security of Xiamen island coastal parks, further enriches the invasion risk evaluation studies in small-scale areas and provides a reference for the introduction of introduced plants in coastal parks in other areas.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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