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    Rights statement: This is the author’s version of a work that was accepted for publication in Science of the Total Environment. 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 Science of the Total Environment, 740, 2020 DOI: 10.1016/j.scitotenv.2020.139904

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Decadal shifts in soil pH and organic matter differ between land uses in contrasting regions in China

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Decadal shifts in soil pH and organic matter differ between land uses in contrasting regions in China. / Sun, Y.; Guo, G.; Shi, H.; Liu, M.; Keith, A.; Li, H.; Jones, K.C.

In: Science of the Total Environment, Vol. 740, 139904, 20.10.2020.

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Sun, Y. ; Guo, G. ; Shi, H. ; Liu, M. ; Keith, A. ; Li, H. ; Jones, K.C. / Decadal shifts in soil pH and organic matter differ between land uses in contrasting regions in China. In: Science of the Total Environment. 2020 ; Vol. 740.

Bibtex

@article{01a766ef78e9423eaae33b68cb511337,
title = "Decadal shifts in soil pH and organic matter differ between land uses in contrasting regions in China",
abstract = "Soil organic matter (SOM) and pH are critical soil properties strongly linked to carbon storage, nutrient cycling and crop productivity. Land use is known to have a dominant impact on these key soil properties, but we often lack the ability to examine temporal trajectories across extensive spatial scales. Large-scale monitoring programmes provide the data to evaluate these longer-term changes, and under different climatic conditions. This study used data from Chinese soil surveys to examine changes in soil pH and SOM across different land uses (dry farmland, paddy fields, grassland, woodland, unused land), with surface soil (0–20 cm) collected in the periods 1985–90 (Survey 1; 890 samples) and 2006–10 (Survey 2; 5005 samples) from two contrasting areas. In the southern part of China the mean pH of paddy soils fell sharply over the two decades between surveys - from pH 5.81 to 5.19 (p < 0.001), while dry farmlands in the northern sampling area fell slightly (from pH 8.15 to 7.82; p < 0.001). The mean SOM content of dry farmland soil rose in both areas and the mean SOM of paddy fields in the southern area also rose (all p < 0.001). Woodland soil pH in the south showed an increase from 4.71 to 5.29 (p < 0.001) but no significant difference was measured in the woodlands of the northern area, although the trend increased. The SOM content of woodland top soils rose in the northern (p = 0.003) and southern (p < 0.001) study areas. The implications and potential causes of these changes over the two decade timespan between surveys are discussed and suggestions made as to how large scale soil sampling campaigns can be designed to monitor for changes and potential controlling factors.",
keywords = "Agriculture, Land use, Paddy fields, Soil change, Soil surveys, Woodland, Biogeochemistry, Digital storage, Farms, Forestry, Organic compounds, Carbon storage, Climatic conditions, Controlling factors, Crop productivity, Large-scale monitoring, Nutrient cycling, Soil organic matters, Temporal trajectories, Soils, soil organic matter, agriculture, decadal variation, land use, paddy field, pH, soil survey, woodland, agricultural land, Article, carbon storage, China, crop production, environmental monitoring, forest, geography, nutrient cycling, pH measurement, priority journal, soil acidity, soil analysis",
author = "Y. Sun and G. Guo and H. Shi and M. Liu and A. Keith and H. Li and K.C. Jones",
note = "This is the author{\textquoteright}s version of a work that was accepted for publication in Science of the Total Environment. 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 Science of the Total Environment, 740, 2020 DOI: 10.1016/j.scitotenv.2020.139904",
year = "2020",
month = oct,
day = "20",
doi = "10.1016/j.scitotenv.2020.139904",
language = "English",
volume = "740",
journal = "Science of the Total Environment",
issn = "0048-9697",
publisher = "Elsevier Science B.V.",

}

RIS

TY - JOUR

T1 - Decadal shifts in soil pH and organic matter differ between land uses in contrasting regions in China

AU - Sun, Y.

AU - Guo, G.

AU - Shi, H.

AU - Liu, M.

AU - Keith, A.

AU - Li, H.

AU - Jones, K.C.

N1 - This is the author’s version of a work that was accepted for publication in Science of the Total Environment. 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 Science of the Total Environment, 740, 2020 DOI: 10.1016/j.scitotenv.2020.139904

PY - 2020/10/20

Y1 - 2020/10/20

N2 - Soil organic matter (SOM) and pH are critical soil properties strongly linked to carbon storage, nutrient cycling and crop productivity. Land use is known to have a dominant impact on these key soil properties, but we often lack the ability to examine temporal trajectories across extensive spatial scales. Large-scale monitoring programmes provide the data to evaluate these longer-term changes, and under different climatic conditions. This study used data from Chinese soil surveys to examine changes in soil pH and SOM across different land uses (dry farmland, paddy fields, grassland, woodland, unused land), with surface soil (0–20 cm) collected in the periods 1985–90 (Survey 1; 890 samples) and 2006–10 (Survey 2; 5005 samples) from two contrasting areas. In the southern part of China the mean pH of paddy soils fell sharply over the two decades between surveys - from pH 5.81 to 5.19 (p < 0.001), while dry farmlands in the northern sampling area fell slightly (from pH 8.15 to 7.82; p < 0.001). The mean SOM content of dry farmland soil rose in both areas and the mean SOM of paddy fields in the southern area also rose (all p < 0.001). Woodland soil pH in the south showed an increase from 4.71 to 5.29 (p < 0.001) but no significant difference was measured in the woodlands of the northern area, although the trend increased. The SOM content of woodland top soils rose in the northern (p = 0.003) and southern (p < 0.001) study areas. The implications and potential causes of these changes over the two decade timespan between surveys are discussed and suggestions made as to how large scale soil sampling campaigns can be designed to monitor for changes and potential controlling factors.

AB - Soil organic matter (SOM) and pH are critical soil properties strongly linked to carbon storage, nutrient cycling and crop productivity. Land use is known to have a dominant impact on these key soil properties, but we often lack the ability to examine temporal trajectories across extensive spatial scales. Large-scale monitoring programmes provide the data to evaluate these longer-term changes, and under different climatic conditions. This study used data from Chinese soil surveys to examine changes in soil pH and SOM across different land uses (dry farmland, paddy fields, grassland, woodland, unused land), with surface soil (0–20 cm) collected in the periods 1985–90 (Survey 1; 890 samples) and 2006–10 (Survey 2; 5005 samples) from two contrasting areas. In the southern part of China the mean pH of paddy soils fell sharply over the two decades between surveys - from pH 5.81 to 5.19 (p < 0.001), while dry farmlands in the northern sampling area fell slightly (from pH 8.15 to 7.82; p < 0.001). The mean SOM content of dry farmland soil rose in both areas and the mean SOM of paddy fields in the southern area also rose (all p < 0.001). Woodland soil pH in the south showed an increase from 4.71 to 5.29 (p < 0.001) but no significant difference was measured in the woodlands of the northern area, although the trend increased. The SOM content of woodland top soils rose in the northern (p = 0.003) and southern (p < 0.001) study areas. The implications and potential causes of these changes over the two decade timespan between surveys are discussed and suggestions made as to how large scale soil sampling campaigns can be designed to monitor for changes and potential controlling factors.

KW - Agriculture

KW - Land use

KW - Paddy fields

KW - Soil change

KW - Soil surveys

KW - Woodland

KW - Biogeochemistry

KW - Digital storage

KW - Farms

KW - Forestry

KW - Organic compounds

KW - Carbon storage

KW - Climatic conditions

KW - Controlling factors

KW - Crop productivity

KW - Large-scale monitoring

KW - Nutrient cycling

KW - Soil organic matters

KW - Temporal trajectories

KW - Soils

KW - soil organic matter

KW - agriculture

KW - decadal variation

KW - land use

KW - paddy field

KW - pH

KW - soil survey

KW - woodland

KW - agricultural land

KW - Article

KW - carbon storage

KW - China

KW - crop production

KW - environmental monitoring

KW - forest

KW - geography

KW - nutrient cycling

KW - pH measurement

KW - priority journal

KW - soil acidity

KW - soil analysis

U2 - 10.1016/j.scitotenv.2020.139904

DO - 10.1016/j.scitotenv.2020.139904

M3 - Journal article

VL - 740

JO - Science of the Total Environment

JF - Science of the Total Environment

SN - 0048-9697

M1 - 139904

ER -