1.But the content of element K and Mn in the leaves of Chineseprivet had linear correlation with the damaged degree of the pest. The more seriously the Chineseprivet damaged,the higher the content of element Mn and K in the leaves had.
2.The change of the content of Mg,Cu,Ca,N,P in the leaves of Chineseprivet,which was harmed by the stinkbug at various degrees,was insignificant,which showed that the harm of stinkbug had no remarkable effect on the content of these nutrient elements.
3.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.
