长白山针阔叶混交林带花粉通量及垂直散布年际对比  

COMPARISON OF TWO YEAR'S POLLEN FLUX AND VERTICAL DISPERSION IN THE MIXED CONIFER AND BROAD-LEAVED FOREST OF THE CHANGBAI MOUNTAIN

作　　者：张丽艳[1] 许清海[1,2] 李月丛[1] 王学丽[1] 曹现勇[1] 田芳[1] 

机构地区：[1]河北师范大学资源与环境科学学院,河北省环境演变与生态建设实验室,石家庄050016 [2]兰州大学教育部西部环境重点实验室,兰州730000

出　　处：《古生物学报》2009年第2期222-227,共6页Acta Palaeontologica Sinica

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;40672107);河北省自然科学基金资助项目(批准号:D2008000186);教育部博士点专项科研基金项目(批准号:20050094004);河北省博士基金项目(批准号:06547006-3);河北省高校重点学科建设项目资助

摘　　要：长白山针阔叶混交林一号样地2005和2006年气象塔不同高度捕捉器样品花粉分析对比表明:连续两年花粉组成都是以乔木花粉为主,但存在差异,06年乔木花粉百分比较高,灌木、草本较低,同时06年花粉通量也较高,可能与05年花期降水较多,温度较低,花粉产量低有关。连续两年花粉通量在垂直高度上具有较高的一致性,特别是主要乔木花粉类型(白蜡属、桦、栎、松属花粉)。这一结果有助于更好理解表土花粉对植被的指示性,森林表土样品中的草本、低矮灌木花粉类型,应主要来自样品点附近的植物;样品中的乔木、较高灌丛花粉类型,可能来自样品点附近或更大范围植物;区域性植物对花粉组合也有一定影响。A comparison of pollen assemblages and pollen influx between 2005 and 2006 in mixed conifer and broad-leaved forest of Changbai Mountains shows that the pollen assemblages are similar with arboreal pollen taxa dominated in all the samples, but the percentages of arboreal pollen are slightly higher and shrub and herb pollen are lower in 2006 than in 2005. The reason is concerned with more precipitation in florescence and lower temperature in 2005. But both in 2005 and 2006, the vertical pollen influxes show similar dispersal trend, especially for the main arboreal pollen of Fraxinus, Betular, Quercus, and Pinus in different height. The results show that the herb and shrub pollen mainly come from their nearby plants, whereas the arboreal pollen have farther pollen sources than those of herb and shrub pollen, and some regional pollen taxa can also influence the pollen assemblages.

关 键 词：花粉组合 花粉通量 针阔叶混交林 垂直散布 年际对比 长白山 

分 类 号：Q948[生物学—植物学]