The resistance of test trees pecies to SO2 was in order of: Bigleave Box > Paniculed Goldraintree > White Pine > Ovate Catalpa > Armand Pine > Bunge Pine > Purpus Privet > Chinese pine > Manchurian Catalpa.

• 对SO_2的抵抗能力由强到弱依次为:黄杨、栾树、乔松、梓树、华山松、白皮松、女贞、油松、楸树。