摘要
N2O在大气中的浓度仅为CO2的浓度的千分之一左右,但在同等浓度的情况下温室效应却是CO2的200-300倍;它在大气层中的光化学产物会与臭氧反应,从而损耗平流层的臭氧。N2O的环境效应引起人们的关注,许多国际气候变化研究项目都把其列入重要研究内容。通过对过去40年的相关研究工作进行综合分析,阐述MO在海洋中的分布规律和其影响因素、产生的机制、它的海气通量及其影响因素,从而揭示N2O的海洋生物地球化学循环过程以及这一过程对全球氮循环的贡献。
The concentration of nitrous oxide in the atmosphere is only two orders of magnitude lower than that of Carbon dioxide, however, its green house effect is about 200-300 times higher than that of carbon dioxide. So it has been considerably concerned in the past decades and lots of work have been carried out. A review of the study on biogeochemical cycle of nitrous oxide in oceans for the past decadets is presented here. The vertical distribution of nitrous oxide in oceans, their impact factors, as formation and removal mechanisms will be discussed in more detail. The N2O cycles in oceans will play a significant role in the global biogeochemical cycle.
出处
《地球科学进展》
CAS
CSCD
北大核心
2006年第3期269-277,共9页
Advances in Earth Science
基金
国家自然科学基金重点项目"白令海与西北冰洋碳通量及其对北极快速变化的响应"(编号:40531007)
国家自然科学基金项目"南大洋PCO2时空变异及其调控因子研究"(编号:40276001)
国家社会公益专项"台湾海峡大气污染物的输入及海洋生态效应"(编号:2004DIB5178)
"东南极海洋与空气环境监测研究"(编号:2003DEB5J057)资助
关键词
海洋氧化亚氮
温室效应
硝化
反硝化
海气通量
Nitrous oxide
Greenhouse effect
Nitrification
Denitrification
Air-sea flux.