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生态学杂志 ›› 2009, Vol. 28 ›› Issue (12): 2410-2416.

• 研究报告 • 上一篇    下一篇

沈阳市四种乔木树种BVOCs排放特征

陈颖1,2;史奕1**;何兴元1   

  1. 1中国科学院沈阳应用生态研究所陆地生态过程重点实验室|沈阳 110016;2中国科学院研究生院|北京100049
  • 出版日期:2009-12-10 发布日期:2009-12-10

Emission characteristics of biogenic volatile organic compounds from four tree species in Shenyang, China.

CHEN-Ying1,2 ;SHI -Yi1;HE Xing-yuan1   

  1. 1Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China|2Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • Online:2009-12-10 Published:2009-12-10

摘要: 采用热解析与气相色谱联用技术对沈阳市4种主要乔木树种——银中杨、垂柳、榆树和皂角的BVOCs排放特征进行了观测。实验发现,不同树种排放BVOCs的组成情况明显不同,银中杨和垂柳以释放异戊二烯为主,且二者的BVOCs排放速率明显高于其他树种;榆树和皂角以释放柠檬烯为主。4种乔木树种BVOCs的释放具有显著的日变化和季节变化规律,各树种的BVOCs排放速率日变化曲线多表现为单峰型,排放高峰一般出现在中午或下午,且夜间几乎均不排放异戊二烯。季节变化趋势主要表现为夏季最高,春、秋季较低。

关键词: 生物除磷, 聚磷酸盐, 微生物

Abstract: By the methods of thermal desorption and gas chromatography, the emission characteristics of biogenic volatile organic compounds (BVOCs) from Populus alba × berolinensis, Salix babylonica, Ulmus pumila, and Gleditsia japonica) in Shenyang urban area were studied. The BVOCs emissions varied with test tree species. P. alba ×berolinensis and  S. babylonica had obviously higher BVOCs emissions than the other two tree species, and mainly emitted isoprene; while U. pumila and  G. japonica  mainly released limonene. The BVOCs emissions from test tree species had obvious diurnal and seasonal variation patterns,i.e., with a peak at noon or afternoon and less isoprene released at night, and higher in summer than in spring and autumn.

Key words: Biological phosphorus removal, Polyphosphate, Microorganism