Abstract:In order to examine the effects of simulated sulfate deposition on methane emissions in estuary wetlands, monthly pulses of dissolved Na2SO4 were applied to the Cpyerus malaccensis wetland on the neap dates in the Min River estuary over nine months in doses of 25,50,100 kg SO42--S/ (hm2?a ). There was no suppression in most months, only in fewer months, there was a weak suppression. A suppressive effect on methane production amount was observed in the simulated SO42- addition in laboratory anaerobic incubation experiment, however, the suppression percentage was only between 8.5% to 15.4 % ralative to control treatment. The adding of non-competitive methane production substrates (methanol and trimethylamine) increased methane production amount in laboratory anaerobic incubation experiment, which would explain the conclusion that simulated SO42- deposition in situ had no suppression on methane emission in estuary wetlands.
仝川, 柳铮铮, 曾从盛, 钟春棋, 黄佳芳. 模拟SO42?沉降对河口潮汐湿地甲烷排放通量的影响[J]. 中国环境科学, 2010, 30(3): 302-308.
TONG Chuan, LIU Zheng-Zheng, ZENG Cong-Sheng, ZHONG Chun-Qi, HUANG Jia-Fang. Effects of simulated sulfate deposition on CH4 fluxes from tidal wetland in the Min River estuary. CHINA ENVIRONMENTAL SCIENCECE, 2010, 30(3): 302-308.