福建东南丘陵外来树种及其入侵风险评价  

Exotic Tree Species and Their Invasive Risk Assessment in Southeast Hills of Fujian Province

作　　者：黄斌龙 Huang Binlong(Fujian Forestry Survey and Design Institute,Fuzhou 350001,China)

机构地区：[1]福建省林业勘察设计院,福建福州350001

出　　处：《防护林科技》2024年第2期61-64,共4页Protection Forest Science and Technology

摘　　要：对外来树种进行风险评价有助于提升区域生态安全保障。为了解我国东南丘陵外来树种情况,评价入侵树种风险等级,以福建省大田县木本及竹类树种为研究对象,通过对各乡镇进行实地调查,结合资料收集和风险评价方法,开展了大田县外来树种及其入侵风险等级综合分析评价研究。结果表明:大田县有96种外来树种,18个乡镇均存在外来树种,其中均溪镇和石碑镇的外来树种种类最多,分别有29种和28种,谢洋乡外来树种种类最少,仅有4种;建设镇外来树种比重最高(6.85%),谢洋乡外来树种比重最低(0.75%)。通过物种来源分析,外来入侵树种有19种,65%以上来自南美洲和亚洲,刺槐和马缨丹入侵风险等级为中等,其余17种树种均为低风险,未发现存在高风险入侵树种。The risk assessment of exotic tree species is helpful to improve regional ecological security.In order to understand the situation of exotic tree species in the southeast hills of China and evaluate the risk levels of invasive tree species,this paper took the woody and bamboo tree species in Datian County of Fujian Province as the study objects,and then carried out a comprehensive analysis and evaluation study on the exotic tree species and their invasive risk levels in Datian County by field investigation in each town,data collection and risk assessment methods.The results showed that there were 96 exotic tree species in Datian County,of which 18 towns had exotic tree species.Among them,Junxi Town and Shibei Town had the most exotic tree species,with 29 and 28 species respectively,while Xieyang Town had the least exotic tree species,with only 4 species.The proportion of exotic tree species in Jianshe Town was the highest(6.85%),while the proportion of exotic tree species in Xieyang Town was the lowest(0.75%).Through the analysis of species sources,there were 19 invasive tree species,more than 65%of which were from South America and Asia.The invasion risk levels of Ribinia pseudoacacia and Lantana camara were medium,and the other 17 tree species were of low risk.No high-risk invasive tree species were found.

关 键 词：东南丘陵 外来树种 风险评价 危害等级 

分 类 号：S765[农业科学—森林保护学]