摘要
The paper studied the air purification function of urban forest trees in Guangzhou City in absorbing C、P、K、 SO2、Pb、Cd , etc. The results indicated that: The highest reserve of organic C reaches 184 t/hm2 in the soil of studied urban forest, and the lowest is 24.6t/hm2; The highest TN reserve is 16.7t/hm2, and the lowest is 2.0t/hm2; The highest reserves of Pb, Cd are 837.4kg/hm2, 3.9kg/hm2 and the lowest are 577kg/hm2、 1.2kg/hm2 in the greenbelt ecosystem. The accumulative quantity of SO2 in tree leaves is highest in Ficus altissima, and lowest in sea mango; The maximum quantity of Pb fixed by Ficus concinna is 22.6g/ hm2, and the maximum quantity of Cd fixed by Eucalyptus urophylla and Michelia alba is 0.15 g/ hm2.
The paper studied the air purification function of urban forest trees in Guangzhou City in absorbing C, P, K, SO2, Pb, Cd, etc. The results indicated that： The highest reserve of organic C reaches 184 t/hm^2 in the soil of studied urban forest, and the lowest is 24.6t/hm^2; The highest TN reserve is 16.7t/hm^2, and the lowest is 2.0t/hm^2; The highest reserves of Pb, Cd are 837.4kg/hm^2, 3.9kg/hm^2 and the lowest are 577kg/hm^2. 1.2kg/hm^2 in the greenbelt ecosystem. The accumulative quantity of SO2 in tree leaves is highest in Ficus altissima, and lowest in sea mango; The maximum quantity of Pb fixed by Ficus concinna is 22.6g/hm^2, and the maximum quantity of Cd fixed by Eucalyptus urophylla and Michelia alba is 0.15 g/hm^2.
出处
《中国城市林业》
2006年第3期14-16,共3页
Journal of Chinese Urban Forestry
