西南林业大学学报2023，Vol.43Issue(11)：72-78,7.DOI:10.11929/j.swfu.202202006
毛乌素沙地黑沙蒿花粉传播动态及其与气象要素的关系研究
Relationship Between Pollen Dispersal Dynamics and Meteorological Factors for Artemisia ordosica in Mu Us Sandyland
摘要
Abstract
From August 2 to 4,2020(the flowering period of Artemisia ordosica),the daily variation of its three-dimensional space pollen transmission was monitored by using the gravity slide method,once every 3h,for 3 consecutive days.The results showed that the diurnal variation of pollen amount could be described by a uni-variate cubic function within 24 hours of the blooming period of A.ordosica.The pollen amount was the least from 02:00 to 03:00,and the most from 14:30 to 15:00,with unimodal and explosive characteristics;In terms of spatial change,the number of pollens at the upwind end of the local prevailing wind is significantly less than that at the downwind end,and the number in the south is the least,which is significantly less than that at the north of the downwind end,and the number at 3m is significantly less than that at lm.Pollen amount was posit-ively correlated with air temperature(P＜0.01),negatively correlated with relative humidity(P＜0.01),and posit-ively correlated with wind speed.Path analysis showed that temperature was the dominant factor affecting pollen propagation,followed by wind speed and relative humidity.Therefore,creating a local small environment with re-latively low wind speed,low air temperature and high humidity through ecological or biological measures will help reduce the spread and transmission of A.ordosica pollen.关键词
黑沙蒿/花粉量/花粉传播/气象要素Key words
Artemisia ordosica/pollen count/pollen transmission/meteorological element分类
农业科技引用本文复制引用
乔占国,汪芳,张泽宁,张春妮,宛涛,郝好,吴娇娇,刘龙..毛乌素沙地黑沙蒿花粉传播动态及其与气象要素的关系研究[J].西南林业大学学报,2023,43(11):72-78,7.基金项目
榆林市科技计划项目沙蒿花粉控制技术研究(19-23)资助. （19-23）
