Primary Study on the Concentrations of Nonmethane Hydrocarbon Emitted from the Forest
森林排放非甲烷碳氢化合物的初步研究

We used 0 8 L stainless steel flasks for air sampling twiceweekly from June 1995 to April 1996 and GC-FID to analyze the concentrations of NMHC in the Dinghushan Mountain biosphere protection zone, Zhaoqing City, Guangdong Province The results show that the concentration of isoprene emission from the forest has an evident seasonal variation and a positive correlation with air temperature