北京地区林木、植被排放碳氢化合物的定性监测

为了研究大气中碳氢化合物的天然来源，采用封闭式采样和气相色谱法，对北京的主要树种(杨树、柳树、松树、柏树等)以及草地和稻田(在水稻生长旺期)进行了碳氢化合物的排放情况调查。发现北京的杨树、柳树、槐树(落叶乔木)主要排放异戊二烯化合物；松树、柏树(针叶林木)排放萜烯类化合物；草地和稻田排放甲烷等低碳化合物。以上结果与国外工作结论近似。 

The Qualitative Determination of Hydrocarbon Emitted from Woods and Vegetations over Beijing Area

In order to research the source of hydrocarbon in ambient air.natural hydrocarbonernisions from dominant tree types in Beijing(poplar,willow,pine,cypress,etc)as well as lawnand paddy field(during the growing peak period of paddy)have been investigated using enclosuretechnique and chromatography analysis. It has been found that deciduous such as poplar,willowand Chinese scholartrees emit chiefly isoprene, coniferous(pine and cypress)emit usually ter-penes. The grass and paddy emit low-carbon hydrocarbon compounds. These research results aresimilar to those in some literatures.