中文摘要：

以2004年中国科学院红壤生态试验站森林小气候分站气象资料，计算近地面湍流特征参数（U^＊·、θ^＊·和L），采用大叶阻力相似模型计算各种氮化物干沉降速率（Vd），研究了该阔叶林地大气氮化物％动态变化．结果表明，1年中大气NO3粒子／NH4^-粒子、HNO3（g）、NO2和NH3的虼年均值分别为0．216，0．985，0．115,0．274cm／s；1天中，Vd白天大于晚上，最大值出现在中午11：00-12：00．大气氮化物Vd冬、春季高，夏、秋季低．

英文摘要：

Surface layer turbulence characteristic parameters （U^＊, θ^＊ and L） and the dry deposition velocities （Vd） of various atmospheric nitrogen compounds were calculated by Big Leaf Resistance Analogous Model based on the meteorological data collected in 2004 from the Forest Micrometeorological Experiment Sub-station, Experiment Station of Red Earth Ecology, Chinese Academy of Sciences. The annual mean Vd of particulate NO3^- /NH4^＋, HNO3 （g）, NO2 and NH3 were 0.216, 0.985, 0.115, 0.274 cm/s, respectively. The Vd of atmospheric nitrogen were higher in daytime than that in night, while the highest Vd were observed at 11：00-12：00 AM. The Vd of atmospheric nitrogen were higher in winter and spring than that in summer and autumn.