Abstract
Sulfur dioxide (SO2) is one of the most toxic air pollutants for plants. The study chose five kinds of road trees which we have usually seen ever to research the influence for plants using sulfur dioxide gas. The trees are about 60∼90 cm in height, which were taken the fuming test for 48 hours, the concentration of the sulfur dioxide gas are 600, 1000, 2000 ppb. The test is to evaluate the resistance of these trees by fuming sulfur dioxide gas, and to compare the parameters of the rate of photosynthesis and the index of the resistance for air pollutants from before and after the fuming test, then to analyze their physiological changes and the damages situation of the leaves from the trees after fuming. The results showed that the concentration of 2000 ppb sulfur dioxide is more serious than its 600 and 1000 ppb for plants in their damage situations. Besides of the rate of the net photosynthesis of Acacia confuse Merr. is 78% and indica (Burm.f.) Merr. 16% after fuming; Machilus kusanoi Hayata were dead. And the higher concentration of the fuming gas, the more evidence in the syndrome of the leaf's surface.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
