热带作物学报2025，Vol.46Issue(7)：1724-1732,9.DOI:10.3969/j.issn.1000-2561.2025.07.019
基于HYSPLIT模型的海南岛橡胶树白粉菌孢子气流传播路径与时空动态
Airborne Spore Dispersal Pathways and Spatiotemporal Dynamics of Erysiphe quercicola in Hainan Island Based on the HYSPLIT Model
摘要
Abstract
Rubber tree is one of the"Three Trees"of Hainan,and it is cultivated in several cities and counties across the is-land.Rubber tree powdery mildew is a typical airborne fungal disease that occurs annually,severely affecting rubber yield and tree health.This study analyzed the potential airborne dispersal pathways of rubber tree powdery mildew spores from Febru-ary 1,2021,to March 31,2023,with a focus on Baoting as the starting point for spore diffusion.Using the Lagrangian Hybrid Single-Particle Trajectory(HYSPLIT)model,airflow trajectories at various altitudes were simulated,and trajectory clustering analysis was performed with TrajStat software and the MeteoInfoMap platform to identify representative air mass transport paths.Results indicated that Baoting was the earliest outbreak area of rubber tree powdery mildew in Hainan,where airflows predominantly spreaded southwestward and northwestward,covering neighboring regions such as Sanya,Ledong and Wuz-hishan.This suggests that spore dispersal via airflow may accelerate disease progression in the areas.Additionally,the study found that the spatiotemporal dynamics of spore spread primarily occurred from January to April each year,coinciding with the spring temperature and humidity conditions in Hainan and the phenological stages of rubber trees.The average budburst and disease onset times in Baoting preceded those in other regions,further the importance of Baoting as an early monitoring and warning site for powdery mildew in rubber trees.In conclusion,this study reveals the regional spatiotemporal transmis-sion patterns of powdery mildew spores in Hainan island through the simulation and analysis of airborne spore dispersal from Baoting.The findings would provide scientific evidence and technical support for the formulation of targeted regional control measures,contributing to the effective management of powdery mildew and the stable development of Hainan's rubber industry.关键词
橡胶树白粉病/孢子传播/HYSPLIT模型/气流传输路径/时空动态Key words
rubber tree powdery mildew/spore dispersal/HYSPLIT model/airflow transmission pathways/spatiotemporal dynamics分类
农业科技引用本文复制引用
周绍尧,朱家正,张宇,杨叶,梁晓宇,王萌..基于HYSPLIT模型的海南岛橡胶树白粉菌孢子气流传播路径与时空动态[J].热带作物学报,2025,46(7):1724-1732,9.基金项目
国家自然科学基金项目(No.32460644) （No.32460644）
海南省科技人才创新项目(No.KJRC2023C43) （No.KJRC2023C43）
国家重点研发计划项目(No.2024YFD1400603). （No.2024YFD1400603）
