摘要
本研究实地调查了舒城县外来入侵物种在全县森林、草原、湿地三大生态系统中的基本情况,在此基础上,分析了外来入侵物种风险等级,并通过MaxEnt模型分析,明确外来入侵植物在舒城县适生范围及其关键环境影响因子。结果表明:舒城县共计发现外来入侵物种5种,其中,外来入侵植物4种,分别为凤眼莲、喜旱莲子草、垂序商陆和加拿大一枝黄花;外来入侵昆虫1种,为悬铃木方翅网蝽。5种外来入侵物种均为低风险物种(风险等级为三级)。在适生范围方面,凤眼莲和加拿大一枝黄花的潜在适生区主要集中在舒城县中部和北部;喜旱莲子草和垂序商陆的潜在适生区主要集中在舒城县中部。在关键环境影响因子方面,凤眼莲主要受温度的影响,喜旱莲子草、垂序商陆和加拿大一枝黄花主要受到温度和降雨量的影响。在分析研判的基础上,进一步提出外来入侵物种预防及治理策略,以期为外来物种防控工作提供参考。
In this study,a field survey was made on the basic information of the invasive alien species in the three major ecosystems of forest,grassland and wetland in Shucheng County.On this basis,the risk level of the invasive alien species was analyzed,and the suit⁃able habitat range and key environmental impact factors of the invasive alien plants in Shucheng County were identified based on Max⁃Ent model analysis.The results showed that a total of 5 invasive alien species were found in Shucheng County,including 4 invasive alien plants,namely Eichhornia crassipes,Alternanthera philoxeroides,Phytolacca americana and Solidago canadensis,and 1 invasive alien insect:Corythucha ciliata.The analysis found that all 5 invasive alien species were low-risk species(risk level was level 3).In terms of suitable habitat,the potential suitable habitats of E.crassipes and S.canadensis were mainly concentrated in the central and northern parts of Shucheng County;the potential suitable habitats of A.philoxeroides and P.americana were mainly concentrated in the central part of Shucheng County.In terms of key environmental factors,E.crassipes was mainly affected by temperature while A.philoxe⁃roides,P.americana and S.canadensis were mainly affected by temperature and rainfall.Based on the analysis and judgment,the pre⁃vention and control strategies of invasive alien species were further put forward,so as to provide a reference for the control of alien spe⁃cies.
作者
陈书黎
黄维新
范少军
陈众
CHEN Shuli;HUANG Weixin;FAN Shaojun;CHEN Zhong(Forestry Harmful Organism Control and Quarantine Center of Shucheng County,Lu'an 231300,Anhui,China;Anhui Zihuan Environmental Engineering Co.Ltd.,Fuyang 236001,Anhui,China;School of Resources and Environmental Engineering,Anhui University,Hefei 230601,Anhui,China)
出处
《安徽林业科技》
2025年第4期31-39,共9页
Anhui Forestry Science and Technology
基金
舒城县森林、草原、湿地生态系统外来入侵物种普查项目(编号:K160139224)。
