Soil-Derived Dust PM10 and PM2.5 Fractions in Southern Xinjiang, China, Using an Artificial Neural Network Model
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Le résumé fourni par la source
Soil-derived dust emissions have been widely associated with health and environmental problems and should therefore be accurately and reliably estimated and assessed. Of these emissions, the inhalable PM10 and PM2.5 are difficult to estimate. Consequently, to calculate PM10 and PM2.5 emissions from soil erosion, an approach based on an artificial neural network (ANN) model which provides a multilayered, fully connected framework that relates input parameters and outcomes was proposed in this study. Owing to the difficulty in obtaining the actual emissions of soil-derived PM10 and PM2.5 over a broad area, the PM10 and PM2.5 simulated results of the ANN model were compared with the published results simulated by the widely used wind erosion prediction system (WEPS) model. The PM10 and PM2.5 emission results, based on the WEPS, agreed well with the field data, with R2 values of 0.93 and 0.97, respectively, indicating the potential for using the WEPS results as a reference for training the ANN model. The calculated r, RMSE and MAE for the results simulated by the WEPS and ANN were 0.78, 3.37 and 2.31 for PM10 and 0.79, 1.40 and 0.91 for PM2.5, respectively, throughout Southern Xinjiang. The uncertainty of the soil-derived PM10 and PM2.5 emissions at a 95% CI was (−66–106%) and (−75–108%), respectively, in 2016. The results indicated that by using parameters that affect soil erodibility, including the soil pH, soil cation exchange capacity, soil organic content, soil calcium carbonate, wind speed, precipitation and elevation as input factors, the ANN model could simulate soil-derived particle emissions in Southern Xinjiang. The results showed that when the study domain was reduced from the entire Southern Xinjiang region to its five administrative divisions, the performance of the ANN improved, producing average correlation coefficients of 0.88 and 0.87, respectively, for PM10 and PM2.5. The performances of the ANN differed by study period, with the best result obtained during the sand period (March to May) followed by the nonheating (June to October) and heating periods (November to February). Wind speed, precipitation and soil calcium carbonate were the predominant input factors affecting particle emissions from wind erosion sources. The results of this study can be used as a reference for the wind erosion prevention and soil conservation plans in Southern Xinjiang.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Soil-Derived Dust PM10 and PM2.5 Fractions in Southern Xinjiang, China, Using an Artificial Neural Network Model
- Date Crossref
- 31/10/2023
- Éditeur
- MDPI AG
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Tianjin Normal University pays non établi dans la noticeUniversité ou école supérieure
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Chinese Research Academy of Environmental Sciences pays non établi dans la noticeOrganisation à but non lucratif
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Tianjin Research Institute of Water Transport Engineering pays non établi dans la noticeStructure de recherche
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NSW Department of Planning and Environment pays non établi dans la noticeOrganisme public
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Government of New South Wales pays non établi dans la noticeOrganisme public
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Nankai University pays non établi dans la noticeUniversité ou école supérieure
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School of Geographic and Environmental Sciences pays non établi dans la noticeUniversité ou école supérieure
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State Key Laboratory of Environmental Criteria and Risk Assessment pays non établi dans la noticeStructure de recherche
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Tianjin Research Institute for Water Transport Engineering pays non établi dans la noticeStructure de recherche
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College of Computer Science pays non établi dans la noticeUniversité ou école supérieure
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Tianjin Changhai Environmental Monitoring Service Corporation pays non établi dans la noticeInstitution
Tianjin Normal University, Chinese Research Academy of Environmental Sciences et Tianjin Research Institute of Water Transport Engineering, avec 8 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.