农业与技术2026，Vol.46Issue(1)：1-5,5.DOI:10.19754/j.nyyjs.20260130001
中宁枸杞蚜虫种群动态变化及迁飞个例模拟
Population Dynamic Changes and Migration Case Simulation of Wolfberry Aphids in Zhongning
摘要
Abstract
The migration behavior and population distribution of wolfberry aphids exhibit obvious seasonal variation characteristics,which are closely related to the atmospheric circulation patterns and local weather conditions.Based on the field observation data in the wolfberry planting area of Zhongning,Ningxia from 2022 to 2024,combined with the WRF-FLEXPART numerical simulation method,this paper comprehensively analyzed the population dynamics and migration characteristics of wolfberry aphids.The results showed that the late June to July was the outbreak peak period of wolfberry aphids in this area.The population growth was closely related to the warm(20-30℃)and humid(60%～80%relative humidity)meteorological conditions,while the heavy precipitation process had an obvious inhibitory effect on the population increase.The high-resolution simulation of the typical migration process from July 12 to 15,2024 further indicated that the migration paths of aphids mainly originated from the northwest and north directions,and their potential source areas could be traced back to the area from Baiyin to Lanzhou in central Gansu Province.The analysis of migration mechanism revealed a composite pattern of"short-term dominance of local aphid sources and supplementary influence of exogenous aphid sources".Specifically,the short-distance diffusion within 24 h was mainly driven by local aphid sources,while the airflow from the north direction undertook the function of transporting exogenous aphid sources at medium distances.The research conclusions can provide a scientific basis for the precise early warning of wolfberry aphids and the formulation of cross-regional collaborative prevention and control strategies.关键词
枸杞蚜虫/种群动态/WRF-FLEXPART模式/迁飞行为Key words
wolfberry aphid/population dynamics/WRF-FLEXPART model/migration behavior分类
农业科技引用本文复制引用
魏巍,刘垚,戴明晶,郭博雅..中宁枸杞蚜虫种群动态变化及迁飞个例模拟[J].农业与技术,2026,46(1):1-5,5.基金项目
国家自然科学基金(项目编号:32160639) （项目编号:32160639）
宁夏青年拔尖人才工程(项目编号:2024236) （项目编号:2024236）
中国气象局新时代气象高层次科技创新人才计划(项目编号:202558) （项目编号:202558）
