Li Huang, Baobin Han, Peng Cheng*, Zhilin Tian, Wenda Yang, Ji Ling, Wenbin Ma, Yihang Yu, Yucheng Gong, Yujie Tian and Hui Deng,
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引用次数: 0
Abstract
Soil is recognized as an important source of atmospherically reactive gases, especially in agricultural soils. Nonetheless, there is scarcity of research estimating reactive nitrogen gas (Nr) emissions from agricultural soils at the regional to global scale. In this study, we examined nitrous acid (HONO) and nitric oxide (NO) emissions from seven representative agricultural soils in Guangdong Province, considering soil moisture and temperature, using a dynamic chamber system. Accordingly, empirical formulas for HONO and NO emissions for each soil in relation to moisture and temperature were developed. Utilizing these empirical formulas, specific land data, and fertilizer data, we estimated the annual HONO and NO emission fluxes from agricultural soils in Guangdong Province to be 97.41 and 37.08 Gg N yr–1, respectively. Their total quantity is equivalent to 12% of the 2017 NOx emission inventory for Guangdong Province, potentially exerting significant impacts on the atmospheric oxidizing capacity and regional air quality.
期刊介绍:
The scope of ACS Earth and Space Chemistry includes the application of analytical, experimental and theoretical chemistry to investigate research questions relevant to the Earth and Space. The journal encompasses the highly interdisciplinary nature of research in this area, while emphasizing chemistry and chemical research tools as the unifying theme. The journal publishes broadly in the domains of high- and low-temperature geochemistry, atmospheric chemistry, marine chemistry, planetary chemistry, astrochemistry, and analytical geochemistry. ACS Earth and Space Chemistry publishes Articles, Letters, Reviews, and Features to provide flexible formats to readily communicate all aspects of research in these fields.