Testing the Validity of a Critical Sulfur and Nitrogen Load Model in Southern Ontario, Canada, using Soil Chemistry Data from MARYP. Kumar, A. J., Gough, W. A., Karagatzides, J. D., Bolton, K. A., & Tsuji, L. J. S. Environmental Monitoring and Assessment, 69(3):221–230, July, 2001. ![Testing the Validity of a Critical Sulfur and Nitrogen Load Model in Southern Ontario, Canada, using Soil Chemistry Data from MARYP [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex The validity of a steady-state massbalance model (Arp et al., 1996; referred to asARP) was tested using physicochemical soil data fromthe Monitoring Acid Rain Youth Program (MARYP). FourARP sites were matched with ten MARYP sites accordingto proximity, bedrock type and subsoil pH to test thevalidity of the ARP model for critical loadexceedances. Soil solution pH, base concentration andAl concentration from MARYP sites, which were wellmatched to ARP sites, validated the modelled criticalload exceedances. Higher exceedance areas wereassociated with more acidic pH and lower base andhigher Al concentrations from matched MARYP sites andvice versa. One ARP site was inappropriately matchedwith MARYP sites and could not be validated using baseand Al concentrations. This study also confirmed thesouthern limit of the zero critical load exceedanceisopleth from the model. However, variability of theother exceedance isopleths was noted due to thelimited number of sites used in the model. Thevalidation of these sites in the ARP model and thezero critical load exceedance isopleth nonethelessallows greater confidence in using this model as amanagement tool for acidic deposition.
@article{kumar_testing_2001,
title = {Testing the {Validity} of a {Critical} {Sulfur} and {Nitrogen} {Load} {Model} in {Southern} {Ontario}, {Canada}, using {Soil} {Chemistry} {Data} from {MARYP}},
volume = {69},
issn = {1573-2959},
url = {https://doi.org/10.1023/A:1010723207915},
doi = {10/bxk4zp},
abstract = {The validity of a steady-state massbalance model (Arp et al., 1996; referred to asARP) was tested using physicochemical soil data fromthe Monitoring Acid Rain Youth Program (MARYP). FourARP sites were matched with ten MARYP sites accordingto proximity, bedrock type and subsoil pH to test thevalidity of the ARP model for critical loadexceedances. Soil solution pH, base concentration andAl concentration from MARYP sites, which were wellmatched to ARP sites, validated the modelled criticalload exceedances. Higher exceedance areas wereassociated with more acidic pH and lower base andhigher Al concentrations from matched MARYP sites andvice versa. One ARP site was inappropriately matchedwith MARYP sites and could not be validated using baseand Al concentrations. This study also confirmed thesouthern limit of the zero critical load exceedanceisopleth from the model. However, variability of theother exceedance isopleths was noted due to thelimited number of sites used in the model. Thevalidation of these sites in the ARP model and thezero critical load exceedance isopleth nonethelessallows greater confidence in using this model as amanagement tool for acidic deposition.},
language = {en},
number = {3},
urldate = {2018-11-30},
journal = {Environmental Monitoring and Assessment},
author = {Kumar, Ashij J. and Gough, William A. and Karagatzides, Jim D. and Bolton, Kim A. and Tsuji, Leonard J. S.},
month = jul,
year = {2001},
keywords = {Monitoring Acid Rain Youth Program (MARYP), acid rain, acidic deposition, critical load, model validation, soil acidification},
pages = {221--230},
}
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