Research and Analysis on Annual Absorption of Sulfur Dioxide per Unit Area by Different Types of Forest Lands in Dapeng New District, Shenzhen.

The absorption of air pollutants is an indicator for studying the value of forest land. It plays an important role in compiling resource balance sheets by studying the absorption of air pollutants by forest land. This paper focused on sulfur dioxide, an air pollutant. Through on-site air sample collection and laboratory testing, using the calculation method of the UFORE model issued by the US Forestry Administration, the annual absorption data of sulfur dioxide in different forest lands in Dapeng New Area were obtained. The results showed that there was not much difference in the absorption capacity of sulfur dioxide among the three types of forest lands in the new area; shrubland, broad-leaved forest, and artificial forest. The amount of sulfur dioxide absorbed per unit area ranged from 11.80 to 13.62 kg/(hm²•a). However, coniferous forests had a lower absorption capacity for sulfur dioxide, with an absorption per unit area of 5.39 kg/(hm²•a). [ABSTRACT FROM AUTHOR]