Abstract:Uptake 14CO2 from air and accumulation of 14C in the camphor were studied by using the isotope-tracer techniques, which was used to get a better understanding of the environmental behavior of 14CO2. And the possibility and superiority of camphor used as the indicator plant in the supervisor of 14CO2 air pollution were discussed. The 14CO2, which was uptaken from the air by the leaf photosynthesis, would accumulate in the leaves of camphor. 14C specific activity was detected high, which demonstrated 14CO2 in the air easily got into leaf tissue of the camphor through photosynthesis. During the early stage of 14CO2 pollution, 14CO2 was mainly uptoken by young leaf tissues while was accumulated mostly in old leaves in later stage. It indicated that the young leaves were sensitive to air pollution of 14CO2 while old leaves had significant the effect of accumulation. Owing to its accumulation of 14CO2, camphor can be used as the indicator plant in the supervisor of 14CO2 air pollution.
史建君. 樟树对14CO2的吸收和积累[J]. 中国环境科学, 2010, 30(12): 1690-1694.
SHI Jian-Jun. Uptake 14CO2 from air and accumulation of 14C in camphor. . CHINA ENVIRONMENTAL SCIENCECE, 2010, 30(12): 1690-1694.