摘要
在明确美国白蛾Hyphantria cunea灾害扩散动力和成灾条件的基础上,系统回顾其在东北地区的扩散过程,探讨其扩散规律,并对其在东北地区的扩散趋势进行分析。结果表明:致灾因子的自然扩散和人为传播相结合是灾害持续扩散的动力;沿海地区具有更加适宜致灾因子生存和灾害发生的孕灾环境;受孕灾环境和防控措施的综合影响,相对扩散速度差异较大;灾害的扩散过程体现出入侵生物引发的典型特征;美国白蛾灾害在松辽平原西部防护林经济林区、松辽平原东部防护林区、长白山南部防护林用材林区有进一步扩散的趋势,三江平原防护林区存在发生的可能性。
On the basis of disaster spread dynamics and disaster conditions of Hyphantria cunea,the spread process in Northeast China was systematically reviewed,and the spread law and spread trend were analysed.The results showed that natural spread and man-made factor of disaster causing factor were motivation for disasters continuous spread.Coastal areas had more suitable disaster inducing environment for disaster causing factor’s living and disaster’s occurrence.The relative spread velocity had large difference under the comprehensive impact of disaster inducing environment and prevention and control measures.The spread process of disasters reflected the typical characteristics caused by invasive organisms.The disaster of H.cunea had further spread trend in shelterbelt economic zone of western Songliao Plain,shelterbelt region of estern Songliao Plain,shelterbelt and timber region of southern Changbai Mountain,there were possibility of disaster occurrence in shelterbelt region of Sanjiang Plain.
作者
李德斌
卢修亮
何姍
罗在全
吴昊
宋玉双
LI Debin;LU Xiuliang;HE Shan;LUO Zaiquan;WU Hao;SONG Yushuang(Key Laboratory of National Forestry and Grassland Administration on Northeast Area Forest and Grass Dangerous Pest Management and Control,Shenyang 113122,China;Liaoning Provincial Key Laboratory of Dangerous Forest Pest Management and Control,Shenyang 113122,China;College of Life Engineering,Shenyang Institute of Technology,Shenyang 113122,China;Center for Biological Disaster Prevention and Control,National Forestry and Grassland Administration,Shenyang 110034,China;Liaoning Forest Pest Control and Quarantin Station,Shenyang 110000,China)
出处
《中国森林病虫》
2023年第2期9-15,共7页
Forest Pest and Disease
基金
东北林草危险性有害生物防控国家林业和草原局重点实验室资助。
关键词
美国白蛾
生物灾害
东北地区
扩散过程
趋势分析
Hyphantria cunea
biological disaster
Northeast China
spread process
trend analysis
