@article{Plach-2022-Influence,
title = "Influence of climate, topography, and soil type on soil extractable phosphorus in croplands of northern glacial‐derived landscapes",
author = "Plach, Janina M. and
Macrae, Merrin L. and
Wilson, Henry F. and
Costa, Diogo and
Kokulan, Vivekananthan and
Lobb, David A. and
King, Kevin W.",
journal = "Journal of Environmental Quality, Volume 51, Issue 4",
volume = "51",
number = "4",
year = "2022",
publisher = "Wiley",
url = "https://gwf-uwaterloo.github.io/gwf-publications/G22-20001",
doi = "10.1002/jeq2.20369",
pages = "731--744",
abstract = "Delineating the relative solubility of soil phosphorus (P) in agricultural landscapes is essential to predicting potential P mobilization in the landscape and can improve nutrient management strategies. This study describes spatial patterns of soil extractable P (easily, moderately, and poorly soluble P) in agricultural landscapes of the Red River basin and the southern Great Lakes region. Surface soils (0-30 cm) and select deeper cores (0-90 cm) were collected from 10 cropped fields ranging in terrain (near-level to hummocky), soil texture (clay to loam), composition (calcareous to noncalcareous), and climate across these differing glacial landscapes. Poorly soluble P dominated (up to 91{\%}) total extractable P in the surface soils at eight sites. No differences in the relative solubilities of soil extractable P with microtopography were apparent in landscapes without defined surface depressions. In contrast, in landscapes with pronounced surface depressions, increased easily soluble P (Sol-P), and decreased soil P sorption capacity were found in soil in wetter, low-slope zones relative to drier upslope locations. The Sol-P pool was most important to soil P retention (up to 28{\%}) within the surface depressions of the Red River basin and at sites with low-carbonate soils in the southern Lake Erie watershed (up to 28{\%}), representing areas at elevated risk of soil P remobilization. This study demonstrates interrelationships among soil extractable P pools, soil development, and soil moisture regimes in agricultural glacial landscapes and provides insight into identifying potential areas for soil P remobilization and associated P availability to crops and runoff.",
}
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<abstract>Delineating the relative solubility of soil phosphorus (P) in agricultural landscapes is essential to predicting potential P mobilization in the landscape and can improve nutrient management strategies. This study describes spatial patterns of soil extractable P (easily, moderately, and poorly soluble P) in agricultural landscapes of the Red River basin and the southern Great Lakes region. Surface soils (0-30 cm) and select deeper cores (0-90 cm) were collected from 10 cropped fields ranging in terrain (near-level to hummocky), soil texture (clay to loam), composition (calcareous to noncalcareous), and climate across these differing glacial landscapes. Poorly soluble P dominated (up to 91%) total extractable P in the surface soils at eight sites. No differences in the relative solubilities of soil extractable P with microtopography were apparent in landscapes without defined surface depressions. In contrast, in landscapes with pronounced surface depressions, increased easily soluble P (Sol-P), and decreased soil P sorption capacity were found in soil in wetter, low-slope zones relative to drier upslope locations. The Sol-P pool was most important to soil P retention (up to 28%) within the surface depressions of the Red River basin and at sites with low-carbonate soils in the southern Lake Erie watershed (up to 28%), representing areas at elevated risk of soil P remobilization. This study demonstrates interrelationships among soil extractable P pools, soil development, and soil moisture regimes in agricultural glacial landscapes and provides insight into identifying potential areas for soil P remobilization and associated P availability to crops and runoff.</abstract>
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%0 Journal Article
%T Influence of climate, topography, and soil type on soil extractable phosphorus in croplands of northern glacial‐derived landscapes
%A Plach, Janina M.
%A Macrae, Merrin L.
%A Wilson, Henry F.
%A Costa, Diogo
%A Kokulan, Vivekananthan
%A Lobb, David A.
%A King, Kevin W.
%J Journal of Environmental Quality, Volume 51, Issue 4
%D 2022
%V 51
%N 4
%I Wiley
%F Plach-2022-Influence
%X Delineating the relative solubility of soil phosphorus (P) in agricultural landscapes is essential to predicting potential P mobilization in the landscape and can improve nutrient management strategies. This study describes spatial patterns of soil extractable P (easily, moderately, and poorly soluble P) in agricultural landscapes of the Red River basin and the southern Great Lakes region. Surface soils (0-30 cm) and select deeper cores (0-90 cm) were collected from 10 cropped fields ranging in terrain (near-level to hummocky), soil texture (clay to loam), composition (calcareous to noncalcareous), and climate across these differing glacial landscapes. Poorly soluble P dominated (up to 91%) total extractable P in the surface soils at eight sites. No differences in the relative solubilities of soil extractable P with microtopography were apparent in landscapes without defined surface depressions. In contrast, in landscapes with pronounced surface depressions, increased easily soluble P (Sol-P), and decreased soil P sorption capacity were found in soil in wetter, low-slope zones relative to drier upslope locations. The Sol-P pool was most important to soil P retention (up to 28%) within the surface depressions of the Red River basin and at sites with low-carbonate soils in the southern Lake Erie watershed (up to 28%), representing areas at elevated risk of soil P remobilization. This study demonstrates interrelationships among soil extractable P pools, soil development, and soil moisture regimes in agricultural glacial landscapes and provides insight into identifying potential areas for soil P remobilization and associated P availability to crops and runoff.
%R 10.1002/jeq2.20369
%U https://gwf-uwaterloo.github.io/gwf-publications/G22-20001
%U https://doi.org/10.1002/jeq2.20369
%P 731-744
Markdown (Informal)
[Influence of climate, topography, and soil type on soil extractable phosphorus in croplands of northern glacial‐derived landscapes](https://gwf-uwaterloo.github.io/gwf-publications/G22-20001) (Plach et al., GWF 2022)
ACL
- Janina M. Plach, Merrin L. Macrae, Henry F. Wilson, Diogo Costa, Vivekananthan Kokulan, David A. Lobb, and Kevin W. King. 2022. Influence of climate, topography, and soil type on soil extractable phosphorus in croplands of northern glacial‐derived landscapes. Journal of Environmental Quality, Volume 51, Issue 4, 51(4):731–744.
