Pollen flux and vertical dispersion in coniferous and deciduous broadleaved mixed forest in the Changbai Mountains  

作　　者：XU QingHai LI YueCong ZHOU LiPing LI YiYin ZHANG ZhenQing LIN FengYou 

机构地区：[1]College of Resources and Environmental Sciences, Hebei Normal University, Shijiazhuang 050016, China [2]College of Environmental Sciences, Peking University, Beijing 100871, China [3]Changbaishan Forest Ecosystem Station of Chinese Academy of Sciences, Antu 133613, China

出　　处：《Chinese Science Bulletin》2007年第11期1540-1544,共5页

基　　金：Supported by the Preliminary Special Foundation for National Key Basic Research (Grant No. 2003CCA01800);the National Natural Science Foundation of China (Grant Nos. 40571166 and 40672107);Hebei Special Foundation for Ph.D (Grant No. 06547006-3);the Key National Natural Science Foundation of China (Grant No. 40331011)

摘　　要：The pollen flux in coniferous and deciduous broadleaved mixed forest in the Changbai Mountains is presented in one year's experiments. The results indicate that arboreal pollen percentages are more than 65% and pollen flux is higher than 5000 grain·cm-2·a-1,while less than 2% and lower than 1000 grain·cm-2·a-1 for shrubby pollen,and less than 20% and lower than 3000 grain·cm-1·a-1 for herbaceous pollen for most samples at different heights. The pollen assemblages are similar to those in the samples under 8 m height where Pinus and Ouercus are dominant and followed by the few non-local pollen types,and Fraxinus percentages are high with a few non-local pollen types at 16 m to 32 m height as well as non-local pollen clearly increased at 40 m height. Comparisons between pollen assemblages and vegetation composition suggest that similarities are higher for pollen trap samples than for surface moss samples.The pollen flux in coniferous and deciduous broadleaved mixed forest in the Changbai Mountains is presented in one year＇s experiments. The results indicate that arboreal pollen percentages are more than 65% and pollen flux is higher than 5000 grain.cm^-2.a^-1, while less than 2% and lower than 1000 grain.cm^-2-a^-1 for shrubby pollen, and less than 20% and lower than 3000 grain.cm^-2.a^-1 for herbaceous pollen for most samples at different heights. The pollen assemblages are similar to those in the samples under 8 m height where Pinus and Quercus are dominant and followed by the few non-local pollen types, and Fraxinus percentages are high with a few non-local pollen types at 16 m to 32 m height as well as non-local pollen clearly increased at 40 m height. Comparisons between pollen assemblages and vegetation composition suggest that similarities are higher for pollen trap samples than for surface moss samples.

关 键 词：长白山 落叶植物 森林 花粉 

分 类 号：Q94[生物学—植物学]