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    Rights statement: This is the author’s version of a work that was accepted for publication in Soil Biology and Biocheistry. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Soil Biology and Biochemistry, 149, 2020 DOI: 10.1016/j.soilbio.2020.107962

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Chronic nitrogen addition differentially affects gross nitrogen transformations in alpine and temperate grassland soils

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Chronic nitrogen addition differentially affects gross nitrogen transformations in alpine and temperate grassland soils. / Hao, T.; Zhang, Y.; Zhang, J.; Müller, C.; Li, K.; Zhang, K.; Chu, H.; Stevens, C.; Liu, X.

In: Soil Biology and Biochemistry, Vol. 149, 107962, 01.10.2020.

Research output: Contribution to journalJournal article

Harvard

Hao, T, Zhang, Y, Zhang, J, Müller, C, Li, K, Zhang, K, Chu, H, Stevens, C & Liu, X 2020, 'Chronic nitrogen addition differentially affects gross nitrogen transformations in alpine and temperate grassland soils', Soil Biology and Biochemistry, vol. 149, 107962. https://doi.org/10.1016/j.soilbio.2020.107962

APA

Hao, T., Zhang, Y., Zhang, J., Müller, C., Li, K., Zhang, K., Chu, H., Stevens, C., & Liu, X. (2020). Chronic nitrogen addition differentially affects gross nitrogen transformations in alpine and temperate grassland soils. Soil Biology and Biochemistry, 149, [107962]. https://doi.org/10.1016/j.soilbio.2020.107962

Vancouver

Author

Hao, T. ; Zhang, Y. ; Zhang, J. ; Müller, C. ; Li, K. ; Zhang, K. ; Chu, H. ; Stevens, C. ; Liu, X. / Chronic nitrogen addition differentially affects gross nitrogen transformations in alpine and temperate grassland soils. In: Soil Biology and Biochemistry. 2020 ; Vol. 149.

Bibtex

@article{f839fe22f76946e9858de95645870736,
title = "Chronic nitrogen addition differentially affects gross nitrogen transformations in alpine and temperate grassland soils",
abstract = "Nitrogen (N) deposition can profoundly alter soil N cycling of grassland ecosystems. Substrates and soil acidification are expected to modify soil N transformations in response to elevated N deposition. Here, we carried out 15N tracing studies to test the effects of N addition rates (low: 30 kg N ha−1 and high: 90/120 kg N ha−1) and soil acidification on gross N transformation rates using two typical Chinese grassland soils, an alpine calcareous soil and a temperate neutral soil. We found that N addition significantly increased the ratio of gross nitrification rate to gross ammonia immobilization rate (N/I) in both soils, but gross N transformation rates changed differently as a function of N addition rates and soil types. In the calcareous soil, N addition increased soil gross N transformations, largely due to mineral N substrates, SOC, TN and fungal dominance. In contrast, low N addition did not affect gross N transformation rates in the neutral soil, but high N addition significantly decreased gross N transformation rates. Although both SOC and TN were increased with N addition in the neutral soil, N-induced soil pH decline decreased gross N transformation rates. Our results indicate that the effects of N addition on grassland soil gross N transformations are highly dependent on mineral N substrates, SOC and TN. Soil acidification played a more important role than SOC and TN in gross N transformation rate changes in response to elevated N deposition. These findings suggest that the different changes of gross N transformation rates in response to N deposition and soil properties (e.g. SOC, TN and soil pH) should be integrated into biogeochemical models to better predict grassland ecosystem N cycling in the future scenarios of N deposition. ",
keywords = "15N tracing technology, Grassland, Gross N transformations, Nitrogen deposition, Soil acidification, Acidification, Ammonia, Deposition, Ecosystems, Forestry, Nitrogen, Soil testing, Biogeochemical models, Grassland ecosystems, Gross nitrification, Immobilization rates, N transformation rates, Nitrogen transformations, Soil acidifications, Temperate grasslands, Soils",
author = "T. Hao and Y. Zhang and J. Zhang and C. M{\"u}ller and K. Li and K. Zhang and H. Chu and C. Stevens and X. Liu",
note = "This is the author{\textquoteright}s version of a work that was accepted for publication in Soil Biology and Biocheistry. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Soil Biology and Biochemistry, 149, 2020 DOI: 10.1016/j.soilbio.2020.107962",
year = "2020",
month = oct,
day = "1",
doi = "10.1016/j.soilbio.2020.107962",
language = "English",
volume = "149",
journal = "Soil Biology and Biochemistry",
issn = "0038-0717",
publisher = "Elsevier Ltd",

}

RIS

TY - JOUR

T1 - Chronic nitrogen addition differentially affects gross nitrogen transformations in alpine and temperate grassland soils

AU - Hao, T.

AU - Zhang, Y.

AU - Zhang, J.

AU - Müller, C.

AU - Li, K.

AU - Zhang, K.

AU - Chu, H.

AU - Stevens, C.

AU - Liu, X.

N1 - This is the author’s version of a work that was accepted for publication in Soil Biology and Biocheistry. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Soil Biology and Biochemistry, 149, 2020 DOI: 10.1016/j.soilbio.2020.107962

PY - 2020/10/1

Y1 - 2020/10/1

N2 - Nitrogen (N) deposition can profoundly alter soil N cycling of grassland ecosystems. Substrates and soil acidification are expected to modify soil N transformations in response to elevated N deposition. Here, we carried out 15N tracing studies to test the effects of N addition rates (low: 30 kg N ha−1 and high: 90/120 kg N ha−1) and soil acidification on gross N transformation rates using two typical Chinese grassland soils, an alpine calcareous soil and a temperate neutral soil. We found that N addition significantly increased the ratio of gross nitrification rate to gross ammonia immobilization rate (N/I) in both soils, but gross N transformation rates changed differently as a function of N addition rates and soil types. In the calcareous soil, N addition increased soil gross N transformations, largely due to mineral N substrates, SOC, TN and fungal dominance. In contrast, low N addition did not affect gross N transformation rates in the neutral soil, but high N addition significantly decreased gross N transformation rates. Although both SOC and TN were increased with N addition in the neutral soil, N-induced soil pH decline decreased gross N transformation rates. Our results indicate that the effects of N addition on grassland soil gross N transformations are highly dependent on mineral N substrates, SOC and TN. Soil acidification played a more important role than SOC and TN in gross N transformation rate changes in response to elevated N deposition. These findings suggest that the different changes of gross N transformation rates in response to N deposition and soil properties (e.g. SOC, TN and soil pH) should be integrated into biogeochemical models to better predict grassland ecosystem N cycling in the future scenarios of N deposition.

AB - Nitrogen (N) deposition can profoundly alter soil N cycling of grassland ecosystems. Substrates and soil acidification are expected to modify soil N transformations in response to elevated N deposition. Here, we carried out 15N tracing studies to test the effects of N addition rates (low: 30 kg N ha−1 and high: 90/120 kg N ha−1) and soil acidification on gross N transformation rates using two typical Chinese grassland soils, an alpine calcareous soil and a temperate neutral soil. We found that N addition significantly increased the ratio of gross nitrification rate to gross ammonia immobilization rate (N/I) in both soils, but gross N transformation rates changed differently as a function of N addition rates and soil types. In the calcareous soil, N addition increased soil gross N transformations, largely due to mineral N substrates, SOC, TN and fungal dominance. In contrast, low N addition did not affect gross N transformation rates in the neutral soil, but high N addition significantly decreased gross N transformation rates. Although both SOC and TN were increased with N addition in the neutral soil, N-induced soil pH decline decreased gross N transformation rates. Our results indicate that the effects of N addition on grassland soil gross N transformations are highly dependent on mineral N substrates, SOC and TN. Soil acidification played a more important role than SOC and TN in gross N transformation rate changes in response to elevated N deposition. These findings suggest that the different changes of gross N transformation rates in response to N deposition and soil properties (e.g. SOC, TN and soil pH) should be integrated into biogeochemical models to better predict grassland ecosystem N cycling in the future scenarios of N deposition.

KW - 15N tracing technology

KW - Grassland

KW - Gross N transformations

KW - Nitrogen deposition

KW - Soil acidification

KW - Acidification

KW - Ammonia

KW - Deposition

KW - Ecosystems

KW - Forestry

KW - Nitrogen

KW - Soil testing

KW - Biogeochemical models

KW - Grassland ecosystems

KW - Gross nitrification

KW - Immobilization rates

KW - N transformation rates

KW - Nitrogen transformations

KW - Soil acidifications

KW - Temperate grasslands

KW - Soils

U2 - 10.1016/j.soilbio.2020.107962

DO - 10.1016/j.soilbio.2020.107962

M3 - Journal article

VL - 149

JO - Soil Biology and Biochemistry

JF - Soil Biology and Biochemistry

SN - 0038-0717

M1 - 107962

ER -