亚热带森林非甲烷碳氢化合物的研究——Ⅰ.季节变化(钢瓶采样)

A Study of the Nonmethane Hydrocarbons at Subtropical Forest Part Ⅰ: Seasonal Variation (Flask Sampling)

对中国亚热带森林地区的非甲烷碳氢化合物（ＮＭＨＣ）进行了一年多的钢瓶采样，并利用气相色谱仪对空气样品进行了分析，得到了大量ＮＭＨＣ的实测资料以及它们的季节变化规律和相互之间的关系。研究表明，ＮＭＨＣ的主要来源是当地植物的排放。对异戊二烯及其影响因子进行了详细研究。

One year flask sampling campaign at subtropical forest of Dinghushan is carried out for the first time. Air samples were analyzed by using gas chromatograph with a flame ionization detector. Lots of NMHC data at subtropical forest of Dinghushan is obtained, their seasonal variations and rela- tionship are given. Our result indicates that the main NMHC source is biogenic emission from vegetation. A minute study on isoprene and its affecting factors is made.