摘要
石家庄市2007—2009连续两年空气花粉分析表明:受植物花期影响,春季以木本植物花粉为主,夏、秋季以草本植物花粉为主,不同类型花粉通量存在一定年际差异。松属、杨属、胡桃属等当地花粉含量占花粉组合的80.0%以上,桦木属、栎属、虎榛子属等区域花粉含量低于20.0%,显示空气花粉能较好地反映周围植被,但也受区域植被的影响。依据空气花粉通量变化规律,石家庄市主要空气花粉类型通量从高到低排在前5位的依次为:胡桃属、悬铃木属、蒿属、杨属、藜科,均为高致敏类型,花粉过敏症患者在其花期或通量较高时期应早作防范。空气花粉百分含量与气候因子之间的(CCA)分析结果显示,其主要受风速与水汽压影响;不同季节主要花粉类型通量与气候因子的相关分析表明:春季和秋季空气花粉通量主要受气温和水汽压的影响,夏季主要受相对湿度和水汽压的影响,冬季与气候因子相关较弱。
The airborne pollen analysis results in Shijiazhuang indicate that the characteristics of airborne pollen assemblages are generally similar from 2007 to 2009 with arboreal pollen dominated pollen assemblages in spring and herbaceous pollen in summer and autumn. In pollen assemblages, local pollen types （e.g. Juglans, Pinus, Populus, Platanus, Rosaceae） account for sixty percent of total taxa, and more than eighty percent of pollen sum; while regional and extra-regional pollen types （e.g. Betula, Quercus, Ostryopsis） account for forty percent of total taxa, and less than twenty percent of pollen sum, suggesting that airborne pollen mainly coming from local vegetation,while influenced by regional vegetation. In addition, sorted by the change of pollen influxes from high to low, Juglans, Platanus, Artemisia, Populus and Chenopodiaceae occupied the top five positions in Shijiazhuang. If you are allergic to these pollen types, please take care in the periods of their high influx values. The CCA analysis results between pollen percentages and climatic parameters show that the pollen percentages of most taxa are obviously influenced by wind speed and vapor pressure. Wind speeds usually have significant positive correlations with the percentages of Pinus, Quercus, Betula, Juglans, Platanus, Elaeagnus, Ostryopsis, and significant negative correlations with the percentages of Artemisia, Chenopodiaceae, Urtica＋Humulus and Compositae. Vapor pressures often have significant positive correlations with the percentages of Leguminosae, Chenopodiaceae, Urtica＋Humulus, and significant negative correlations with the percentages of Compositae and Juglans. Correlation analyses between major pollen taxa influxes and climatic parameters in different seasons indicate that pollen influxes are mainly influenced by air temperature and vapor pressure in spring and autumn and by relative humidity and vapor pressure in summer. No significant correlation can be found between pollen percentage and any climate parameters in winter. However, the influxes of different pollen taxa are controlled by different climatic parameters in different seasons. E.g., in the spring, the pollen influxes of Populus are only influenced by vapor pressure; while Juglans, Platanus show only significant positive correlations with the air temperature of February to April; Pinus, Quercus show significant positive correlations both the temperature and vapor pressure; Pollen influxes of Poaceae and Cereals show significant positive correlations with air temperature and wind speed. In summer, relative humidity show significant negative correlations with the influxes of Pinus, Quercus, Platanus and Ostryopsis, and vapor pressure show significant negative correlations with the influxes of Juglans, Ostryopsis and Rosaceae. In autumn, the pollen influxes of Poaceae, Cereals, Artemisia, Chenopodiaceae, Urtica＋Humulus have significant positive correlations with temperature and vapor pressure.
出处
《生态学报》
CAS
CSCD
北大核心
2014年第6期1575-1586,共12页
Acta Ecologica Sinica
基金
国家自然科学基金项目(41171166,40672107,40171132)
河北省自然科学基金(D2013205038)
中国科学院战略性先导科技专项(XDA05120202)
关键词
石家庄市
空气花粉组合
气候因子
CCA分析
相关分析
Shijiazhuang
airborne pollen assemblages
climatic parameters
CCA analysis
correlation analysis
