%0 Journal Article
%T Species composition, distribution and phenological characters of pollen-allergenic plants in Beijing urban area<br>北京城区花粉致敏植物种类、分布及物候特征
%A OUYANG Zhi-yun
%A XIN Jia-nan
%A ZHENG Hua
%A MENG Xue-song
%A WANG Xiao-ke
%A <br>欧阳志云
%A 辛嘉楠
%A 郑华
%A 孟雪松
%A 王效科
%J 应用生态学报
%D 2007
%I 
%X In order to know the species composition,distribution pattern,and phenological characteristics of pollen-allergenic plants in Beijing urban area,an investigation was made,combined with literature survey and experts interviews.The results showed that within the fifth ring of Beijing,there were 99 pollen-allergenic plant species belonging to 32 genera and 19 families,among which,52 species were native plants,accounting for 52.5% of the total,26 species were introduced from other regions of China,occupying 26.3% of the total,and 21 species were introduced from foreign countries,being 21.2% of the total.The 32 genera of pollen-allergenic plants in Beijing urban area were mainly North Temperate elements,occupying 40.6%,followed by Cosmopolitan and Pantropic elements.In all functional sections of Beijing urban area,the pollen-allergenic plants were most diversified in urban parks,and had the highest proportion in street tree species.The coverage of herbs with strong pollen allergy was in the order of waste lands> gym centers and institution yards> greenbelts> parks> residential areas> squares.The blooming period of pollen-allergenic arbors in Beijing urban area was concentrated in March and April,while that of pollen-allergenic herbs was from July to September.
%K pollen-allergenic plant
%K urban ecosystem
%K species composition
%K species distribution
%K phenological character<br>花粉致敏植物
%K 城市生态系统
%K 物种构成
%K 物种分布
%K 物候特征
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=CF6500C05BECB149&yid=A732AF04DDA03BB3&vid=13553B2D12F347E8&iid=9CF7A0430CBB2DFD&sid=E7185A61DEE39C9D&eid=D1DB94C1649032D3&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=3&reference_num=33