Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Review of the Annual Phosphorus Loss Estimator (APLE) tool
T2 - a new model for estimating phosphorus losses at the field-scale
AU - Benskin, Clare
AU - Roberts, William
AU - Wang, Ying
AU - Haygarth, Philip
PY - 2014/9
Y1 - 2014/9
N2 - Models that estimate P-loss from agricultural land to surface waters are important tools used by soil scientists, catchment scientists and land managers, to help identify high-risk areas and determine measures which can reduce such losses. A widely used method for predicting P-loss from agricultural land is the ‘Phosphorus Index’ (PI) tool, developed by Lemunyon & Gilbert (1993), which requires relatively basic input data, and provides a qualitative estimate of the risk of P-loss from agricultural fields. The PI delivers a single numerical score, typically expressed as a risk factor ranging from ‘low’ to ‘very high’. Across the USA, state-wide adaptations to the original PI resulted in widely differing indices. In an attempt to reduce these inter-state discrepancies, the US Department for Agriculture developed the Annual Phosphorus Loss Estimator (APLE; Vadas et al., 2009) tool in order to provide a more transparent and quantitative (rather than qualitative) output for both particulate and dissolved P-fractions. This short review compares the latest incarnation of the PI in the APLE tool with other P management indices and explores the various features and opportunities included in the model’s inbuilt equations.
AB - Models that estimate P-loss from agricultural land to surface waters are important tools used by soil scientists, catchment scientists and land managers, to help identify high-risk areas and determine measures which can reduce such losses. A widely used method for predicting P-loss from agricultural land is the ‘Phosphorus Index’ (PI) tool, developed by Lemunyon & Gilbert (1993), which requires relatively basic input data, and provides a qualitative estimate of the risk of P-loss from agricultural fields. The PI delivers a single numerical score, typically expressed as a risk factor ranging from ‘low’ to ‘very high’. Across the USA, state-wide adaptations to the original PI resulted in widely differing indices. In an attempt to reduce these inter-state discrepancies, the US Department for Agriculture developed the Annual Phosphorus Loss Estimator (APLE; Vadas et al., 2009) tool in order to provide a more transparent and quantitative (rather than qualitative) output for both particulate and dissolved P-fractions. This short review compares the latest incarnation of the PI in the APLE tool with other P management indices and explores the various features and opportunities included in the model’s inbuilt equations.
KW - Agriculture
KW - erosion
KW - P
KW - phosphorus
KW - run-off
KW - leaching
KW - modelling
U2 - 10.1111/sum.12128
DO - 10.1111/sum.12128
M3 - Journal article
VL - 30
SP - 337
EP - 341
JO - Soil Use and Management
JF - Soil Use and Management
SN - 0266-0032
IS - 3
ER -