长白山针阔叶混交林花粉通量及垂直散布特征年际变化研究  

TWO YEAR'S POLLEN INFLUX AND POLLEN VERTICAL DISPERSION IN THE CONIFEROUS AND DECIDUOUS BROAD-LEAVED MIXED FOREST OF CHANGBAI MOUNTAINS

作　　者：李建勇[1] 许清海[1] 曹现勇[1] 庞瑞沼 丁伟[1] 林凤友[2] 

机构地区：[1]河北师范大学资源与环境科学学院,石家庄050016 [2]中国科学院长白山森林生态系统定位站,安图133613

出　　处：《第四纪研究》2011年第1期171-179,共9页Quaternary Sciences

基　　金：国家自然科学基金重点项目(批准号:40730103)、国家自然科学基金项目(批准号:40571166和40672107);河北省自然科学基金项目(批准号:D2008000186和D2009000300)联合资助

摘　　要：长白山针阔叶混交林2008年和2009年不同高度花粉通量和花粉垂直散布特征研究表明:花粉组合以乔木植物花粉为主,百分比多大于83%,对植被指示性良好;2009年乔木植物花粉通量较2008年低,可能与2009年乔木植物花期气温低,降水量较多,花粉产量低,风速较小,不利于花粉传播和散布等因素有关;两年花粉通量垂直高度上的变化趋势有相似性,0～22m花粉通量呈增高趋势,分别在16m和22m处出现花粉通量最大值,22m以上花粉通量呈降低趋势;2008年和2009年不同高度花粉组合和花粉通量变化特点与2005年、2006年均较一致。Two years＇ pollen influx and pollen vertical distribution in the coniferous and deciduous broad-leaved mixed forest of Changbai Mountains in 2008 and 2009 show that the pollen assemblages are dominated by arboreal pollen taxa in all samples ,which are consistent with the vegetation composition. The pollen influx in 2009 is lower than that in 2008 ,the reason is concerned with more precipitation ,lower temperature and wind velocity of florescence period. The pollen influx at different heights has similar dispersal trend in two years,showing that the pollen influx tends to increase between 0 and 22re,the maximum values appear at the height of 16m or 22re,however,the pollen influx declines gradually beyond the height of 22m. The results of 2008 and 2009 were similar to that of 2005 and 2006,indicating that the pollen assemblages are consistent at different heights ,the vertical pollen influx has similar dispersal trend too.

关 键 词：长白山 花粉通量 花粉组合 针阔叶混交林 垂直散布 年际对比 

分 类 号：P941.76[天文地球—自然地理学] Q944[生物学—植物学]