郑循华,"N2O emissions from the agriculture in China”,N 2004-The Third International Nitrogen Conference (N2004),October 12-16, 2004,Nanjing.(Invited report)

黄耀, "Simulation of Soil Organic Carbon in Jiangsu Province by linking GIS database to a Model",The International Workshop on Prediction of Food Production Variation in East Asia under Global Warming, March 17~19, 2004,Tsukuba, Japan. (Invited report)

张仁健, "Ground observation of dust storm in Beijing in March 2000 "，Wind-Blown Dust Workshop - The Emission, Transport and Impacts of Wind-Blown Dust from Soil Erosion: Modelling and Observation，November 8-10, 2004，Victoria ,Melbourne, Australia.(Invited report)

王自发, "A numerical simulation of the Asian dust particles mixed with pollutants during 20-24 April 2004"，Wind-Blown Dust Workshop - The Emission, Transport and Impacts of Wind-Blown Dust from Soil Erosion: Modelling and Observation， November 8-10, 2004，Victoria ,Melbourne,  Australia.(Invited report)

韩圣慧,"Air pollution resulting from agriculture (dust ,greenhouse gas emissions, NH3, volatile pesticides)"，Modelling Material Flows and Production System for Sustainable Resource Use in Intensified Crop Production in the North China Plain, October 4-8,2004, Beingjing. (Invited report)

黄耀,"Greenhouse gas emissions and global warming"，Symposium—Sustainable Agriculture and Land use Strategies，October 8, 2004，Beijing. (Invited report) 

胡非，“非均匀大气边界层研究的前沿问题”，第八届中国科学院研究生暨两岸青年大气科学学术研讨会，2004年7月25日至8月1日，四川.(Invited report) 

胡非，“城市空气污染数值预报模式系统研究及应用 ”，区域环境质量演变及环境安全学术研讨会暨中国地理学会环境地理与化学地理专业委员会2004年学术年会，2004年10月22日至29日，香港.  (Invited report)      

张仁健,"Chemical composition and source signature of PM2.5 in Beijing"，2004年冬季两岸四地环境保护工作坊暨研讨会，2004年11月28-12月7日. (Invited report)

张仁健, ＂Study on The Chemical Composition of Atmospheric Aerosols in Air Pollution Control Period by PIXE Method in Beijing＂,10th International Conference on Particle-induced X-ray Emission and Its Analytical Applications ,June 4-8,2004, Ljubljana Portoroz, Slovenia.（Oral report)

张美根,＂NUMERICAL STUDY OF TROPOSPHERIC OZONE TRANSPORT AND PHOTOCHEMICAL PRODUCTION IN EAST ASIA DURING THE TRACE-P EXPERIMENT＂, CMAQ workshop, October 18-20, 2004, University of North Carolina, USA.（Oral report)

张美根,＂Effects of biomass burning in Southeast Asia on the distributions of trace species over the western Pacific Ocean in the springtime＂, Joint International Conference on Sustainable Energy and Environment, December 1-3, 2004, Hua Hin Thailand.（Oral report)

韩圣慧,＂N2O Emission from Asian Cropland In the past, Present and Future＂, The Third International Nitrogen Conference, October 12-16,2004,Nanjing.（Oral report)

徐星凯,＂Mineralization of Nitrogen and N2O Production Potentials in Acid Forest Soils under Controlled Aerobic Conditions＂, International Symposium for the 6th Plant-Soil Interactions at Low pH, August 1-5,2004,Sendai City, Japan.（Oral report)

徐永福,"海洋CO2生物地球化学循环以及大气营养盐的输入所产生的影响"，中美专题讨论会，2004年7月27－28，北京。（Oral report)

徐永福, The 8th International global atmospheric chemistry conference, September 4-9,2004,New Zealand.

周立波,3rd SPARC General Assembly,August1-6 , 2004,Victoria, British Columbia, Canada.

张仁健, 2004年3月16日至2004年5月15日，The Hongkong Polytechnic University.(合作研究）

安俊岭, 2004年11月1日至2004年11月14日，Department of Environmental Management, School of Health Science, University of Occupational and Environmental Health, Japan.（合作研究）

王跃思，2004年1月10日至2004年3月10日，德国Karlsruhe研究中心气象气候研究所。（合作研究）

李  晶，2004年12月15日至2005年12月14日，台湾中央大学。（合作研究）