A relative method for measuring nitric oxide (NO) fluxes from forest soils
文献类型：期刊论文
| 作者 | Kang, Ronghua; Zhang, Xiaoshan; Wang, Jiaqi; Wang, Zhangwei |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2017 |
| 卷号 | 574期号:0页码:544-552 |
| 关键词 | Nitric Oxide (No) Soil-atmosphere Exchange Forest Ecosystem Diffusion Model Laboratory Studies Field Measurements |
| 英文摘要 | Many forest ecosystems in the world are suffering from high load of nitrogen (N) deposition and acting as potential contributors to atmospheric nitric oxide (NO), which regulates the oxidative capacity of the troposphere. However, the observation of NO flux with traditional dynamic chamber method is laborious in the forest ecosystem, particularly when the electric power generation system is unavailable. In this work, a relative method based on Pick's law of diffusion was developed to measure NO fluxes from forest soils. This method describes the relationship between NO and other trace gases, such as N2O or CO2, concerning gas fluxes and gas concentration gradients between the uppermost soil layer and the atmosphere. This relative method can be expressed as two forms: based on the directly obtained soil gas and based on the equilibrium gas at soil water surface. To testify the applicability of this method, both laboratory and field experiments were conducted with soil from an N saturated subtropical forest in Southwestern China. The results demonstrate that the NO fluxes measured based on the later form agreed well with those observed by chamber method, with the deviation rates of around 9% and 30%, respectively. In conclusion, this relative method provides a sound methodological basis for interpreting NO flux variations in the field, especially in N -saturated forest ecosystems, and allows an improvement of statistical N-budget in the world. (C) 2016 Published by Elsevier B.V. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39167]  |
| 专题 | 生态环境研究中心_大气环境科学实验室 |
| 推荐引用方式 GB/T 7714 | Kang, Ronghua,Zhang, Xiaoshan,Wang, Jiaqi,et al. A relative method for measuring nitric oxide (NO) fluxes from forest soils[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2017,574(0):544-552. |
| APA | Kang, Ronghua,Zhang, Xiaoshan,Wang, Jiaqi,&Wang, Zhangwei.(2017).A relative method for measuring nitric oxide (NO) fluxes from forest soils.SCIENCE OF THE TOTAL ENVIRONMENT,574(0),544-552. |
| MLA | Kang, Ronghua,et al."A relative method for measuring nitric oxide (NO) fluxes from forest soils".SCIENCE OF THE TOTAL ENVIRONMENT 574.0(2017):544-552. |
入库方式： OAI收割
来源：生态环境研究中心
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