Estimation of dry deposition fluxes of major inorganic species by canopy throughfall approach

作     者：JIN Lei SHAO Min ZENG Limin ZHAO Dawei TANG Dagang 

作者机构：Beijing Municipal Environmental Monitoring Centre Beijing 100044 China State Joint Key Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences Peking University Beijing 100871 China Chongqing Institute of Environmental Science and Monitoring Chongqing 400020 China Institute of Atmosphere Chinese Research Academy of Environmental Sciences Beijing 100012 China 

出 版 物：《Chinese Science Bulletin》 (中国科学通报)

年 卷 期：2006年第51卷第15期

页      面：1818-1823页

核心收录：

学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学] 

基　　金：Sino-Norwegian National Key Research and Development Program of China, NKRDPC, (2005CB422204) National Key Research and Development Program of China, NKRDPC 

主　　题：净降水量 酸沉降 量化 干沉积 无机化学种 

摘      要：Dry deposition in China has not yet been intensively studied even though it constitutes an important pathway for acid deposition. The total deposition was monitored at Tieshanping catchment, a regional remote site in Chongqing City. The dry deposition loads of sulphur, calcium and nitrogen are estimated by using a canopy throughfall approach. The results indicate that the annual dry deposition loads of sulphur and calcium at Tieshanping site are much higher than those measured in forestry areas in other countries, while the dry deposition flux of ni- trogen is at a comparable level. The dry deposition loads of sulphur, calcium and nitrogen are all higher than the wet deposition loads. Applying a canopy budget model has proven that the routine, simplified canopy throughfall approach may underestimate the dry deposition flux of nitrogen-containing species.