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| 阔叶林地大气氮化物干沉降速率动态变化研究 | |
| 引用本文： | 樊建凌,胡正义,王体健,周静.阔叶林地大气氮化物干沉降速率动态变化研究[J].中国环境科学,2009,29(6):574-577. |
| 作者姓名： | 樊建凌 胡正义 王体健 周静 |
| 作者单位： | 1. 中国科学院南京土壤研究所,土壤与农业可持续发展国家重点实验室,江苏,南京,210008;中国科学院研究生院,资源与环境学院,北京,100049 2. 中国科学院研究生院,资源与环境学院,北京,100049 3. 南京大学大气科学系,江苏,南京210093 4. 中国科学院南京土壤研究所,土壤与农业可持续发展国家重点实验室,江苏,南京,210008 |
| 基金项目： | 中国科学院知识创新工程项目，国家自然科学基金 |
| 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Vd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Vd年均值分别为0.216,0.985,0.115,0.274 cm/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. |
| 关 键 词： | 氮化物 干沉降速率 大气沉降 林地生态系统 |
| 收稿时间： | 2008-11-10; |
Dynamics of dry deposition velocities of atmospheric nitrogen compounds in a broadleaf forestland. |
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| FENG Jian-ling,HU Zheng-yi,WANG Ti-jian,ZHOU Jing.Dynamics of dry deposition velocities of atmospheric nitrogen compounds in a broadleaf forestland.[J].China Environmental Science,2009,29(6):574-577. | |
| Authors: | FENG Jian-ling HU Zheng-yi WANG Ti-jian ZHOU Jing |
| Abstract: | 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. |
| Keywords: | nitrogen compounds dry deposition velocity atmospheric deposition forestland ecosystem |
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