Data underlying the research on: Seasonal variations in N2O emissions in a subtropical forest with exogenous nitrogen enrichment are predominately influenced by the abundances of soil nitrifiers and denitrifiers (dataset)

Data underlying the research on: Seasonal variations in N2O emissions in a subtropical forest with exogenous nitrogen enrichment are predominately influenced by the abundances of soil nitrifiers and denitrifiers

doi:10.4121/uuid:5e5718e5-8c7e-44f5-970d-ab502e1cfa38

Datacite citation style:

Han, Xiaoge; Shen, W.J. (Weijun) (2019): Data underlying the research on: Seasonal variations in N2O emissions in a subtropical forest with exogenous nitrogen enrichment are predominately influenced by the abundances of soil nitrifiers and denitrifiers. Version 1. 4TU.ResearchData. dataset. https://doi.org/10.4121/uuid:5e5718e5-8c7e-44f5-970d-ab502e1cfa38

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Dataset

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Soil Sciences

keywords

air temperature, data of soil physiochemical properties, denitrifying, N2O efflux, nitrifying, physiochemical properties, precipitation, Sampling time, soil temperature

geolocation

South China Botanical Garden

lat (N): 23.1868

lon (E): 113.3642

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CC0

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by Xiaoge Han

, W.J. (Weijun) Shen

Nitrogen (N) deposition elevation has induced severe impacts on the N transformations and N losses of forest ecosystems. For a better understanding the responses of nitrous oxide (N2O) emissions to the elevated N depositions, a two-year field investigation was conducted in a subtropical forest that received natural N deposition (Ct, 0 kg N ha-1 yr-1), low N addition (LN, 35 kg N ha-1 yr-1), medium N addition (MN, 70 kg N ha-1 yr-1) and high N addition treatments (HN, 105 kg N ha-1 yr-1). Gas samples were collected two times in each month and continued for two years. In addition, soils of the subtropical forest were collected in a wet season and in a dry season, for the determination of soil physiochemical properties and nitrifying and denitrifying functional gene abundances. This study was aimed to explore the underlying mechanisms of soil functional microbes in responding to elevated N depositions and in regulating N2O emissions. Data were collected and divided into four parts: 1) the precipitation and air/soil temperature of each gas sampling day. 2) The N2O efflux of each sampling day. 3) The abundance of the nitrifying and denitrifying functional genes. 4) Physiochemical properties of the wet and dry season soils.

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