It has been found that deciduous such as poplar,willowand Chinese scholartrees emit chiefly isoprene, coniferous(pine and cypress)emit usually ter-penes.

 
  • 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;
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