摘要
近年来,湖北神农架大九湖国家湿地公园的外来入侵植物的逐渐增多,外来植物入侵带来的生态风险日益增大,因此,有必要对该湿地公园的外来植物进行系统的调查和风险评估。2021年6月、7月和9月,在湖北神农架大九湖国家湿地公园,开展了外来入侵植物实地调查,得到了该湿地公园的外来入侵植物名单,分析了各入侵物种的状态;筛选出入侵植物风险评估指标,建立了风险评估体系,对各项指标进行赋值,评估了每一种外来植物的入侵风险。研究结果表明,调查期间,在湖北神农架大九湖国家湿地公园中,有23种外来入侵植物,隶属6科20属;其中的21种入侵植物为原产于北美洲或者欧洲的一年生或多年生草本植物;在23种外来入侵植物中,有12种是有意引入的,其余的是自然传播(8种)或无意引入(3种)的;在23种外来入侵植物中,有9种为高风险外来入侵植物,有14种为中风险外来入侵植物;未来,必须加强对该湿地公园中的外来入侵植物的管理和治理。湖北神农架大九湖国家湿地公园中的外来植物入侵状态分析和入侵风险评估信息,对于设计管理策略、控制和减少这些外来植物在该地区的负面影响至关重要。
Dajiuhu Wetland Park in Shennongjia,Hubei,located in Shennongjia Forest district,Hubei province,has encountered increasing hazard by invasive alien plants in recent years.The alien invasive plants has been increasingly reported in this area.It is necessary to carry out a systematic investigation and risk assessment of the alien plants in this park.Field surveys were conducted in June,July and September in 2021 in the park.The alien invasive plant species were listed,and the invasion status of each species was evaluated.By screening the invasion risk assessment indicators(RAIs),assigning values to each indicator and assessing the invasion risk of each alien plant,a risk assessment system was established.The results showed that there were 23 species of alien invasive plants in the study area,belonging to 20 genera and 6 families.There were 21 species of the invasive plants were annual,biennial,or perennial herbs originated from North America or Europe.There were 12 species of the invasive plants were intentionally introduced,and 8 species were naturally dispersed,and 3 species were unintentionally introduced into the study area.According to the risk assessment,the 9 species were highly risky alien plants and the other 14 species were medium risk alien plants.This study indicated that in the future the management and treatment of the invasive plants in the park must be strengthened.The information about invasive status analysis and invasive risk assessment of the alien invasive plants is crucial for designing appropriate strategies to control the potentially negative impacts of these species in the park.
作者
王牧
程丹丹
阎惠香
顾延生
WANG Mu;CHENG Dandan;YAN Huixiang;GU Yansheng(School of Environment Studies,China University of Geosciences(Wuhan),Wuhan 430074,Hubei,P.R.China;Hubei Key Laboratory of Wetland Evolution and Ecological Restoration,Wuhan 430074,Hubei,P.R.China)
出处
《湿地科学》
CSCD
北大核心
2023年第3期387-394,共8页
Wetland Science
基金
国家自然科学基金青年基金项目(42102239)
湖北鄂西地质科技有限公司合作项目(2021046411)资助。
