Abstract:To investigate the effects of elevated nitrogen deposition on forest soil N2O and CH4 fluxes, a simulated nitrogen deposition field experiment was conducted in forest belt from April 2008 to October 2009. Nitrogen treatments included the control (no N addition, CK), low-N [50kgN/(hm2·a), TL], medium-N [100kgN/(hm2·a), TM], and high-N [150kg N/(hm2·a), TH]. N2O and CH4 fluxes were measured by a static chamber-gas chromatograph method. Nitrogen deposition did not change the seasonal and daily variation patterns of soil N2O and CH4 fluxes. Compared to the control, TL, TM and TH treatments had no significant effects on annual average and daily average fluxes of N2O and CH4 in soil. Short-term nitrogen deposition did not alter N2O emission fluxes and CH4 absorb fluxes of soil in forest belt.
胡正华, 张寒, 陈书涛, 李琪, 李涵茂, 申双和. 氮沉降对林带土壤N2O和CH4通量的影响[J]. 中国环境科学, 2011, 31(6): 892-897.
HU Zheng-Hua, ZHANG Han, CHEN Shu-Tao, LI Qi, LI Han-Mao, SHEN Shuang-He. Effects of simulated nitrogen deposition on N2O and CH4 fluxes of soil in forest belt. CHINA ENVIRONMENTAL SCIENCECE, 2011, 31(6): 892-897.