Improving soil pH prediction and mapping using anthropogenic variables and machine learning models

This study evaluates the impact of anthropogenic activities on soil pH prediction in China's Huang-Huai-Hai Plain using four machine learning models (RF, LightGBM, XGBoost, SVM). By incorporating five anthropogenic variables (fertilization, population density, heat flux, urbanization, road dens...

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Main Authors: Daocheng Li, Erlong Xiao, Yingxin Xia, Xingyu Liang, Mengxin Guo, Lixin Ning, Jun Yan
Format: Article
Language:English
Published: Taylor & Francis Group 2025-12-01
Series:Geocarto International
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/10106049.2025.2482699
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author Daocheng Li
Erlong Xiao
Yingxin Xia
Xingyu Liang
Mengxin Guo
Lixin Ning
Jun Yan
author_facet Daocheng Li
Erlong Xiao
Yingxin Xia
Xingyu Liang
Mengxin Guo
Lixin Ning
Jun Yan
author_sort Daocheng Li
collection DOAJ
description This study evaluates the impact of anthropogenic activities on soil pH prediction in China's Huang-Huai-Hai Plain using four machine learning models (RF, LightGBM, XGBoost, SVM). By incorporating five anthropogenic variables (fertilization, population density, heat flux, urbanization, road density) alongside 24 environmental factors, model performance improved significantly (R² up to 0.56 for RF). Key findings: (1) Fertilization and population density were the most influential human factors; (2) Precipitation remained the dominant predictor overall. The results highlight human activities' substantial role in soil pH variation, supporting precision agriculture and sustainable land management in intensively cultivated regions.
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institution Kabale University
issn 1010-6049
1752-0762
language English
publishDate 2025-12-01
publisher Taylor & Francis Group
record_format Article
series Geocarto International
spelling doaj-art-28dce28f38824ef7aa257a70b33e5d642025-08-20T03:43:57ZengTaylor & Francis GroupGeocarto International1010-60491752-07622025-12-0140110.1080/10106049.2025.2482699Improving soil pH prediction and mapping using anthropogenic variables and machine learning modelsDaocheng Li0Erlong Xiao1Yingxin Xia2Xingyu Liang3Mengxin Guo4Lixin Ning5Jun Yan6School of Information Science and Engineering, Shandong Agricultural University, Taian, ChinaSchool of Information Science and Engineering, Shandong Agricultural University, Taian, ChinaSchool of Information Science and Engineering, Shandong Agricultural University, Taian, ChinaSchool of Information Science and Engineering, Shandong Agricultural University, Taian, ChinaSchool of Information Science and Engineering, Shandong Agricultural University, Taian, ChinaSchool of Information Science and Engineering, Shandong Agricultural University, Taian, ChinaSchool of Information Science and Engineering, Shandong Agricultural University, Taian, ChinaThis study evaluates the impact of anthropogenic activities on soil pH prediction in China's Huang-Huai-Hai Plain using four machine learning models (RF, LightGBM, XGBoost, SVM). By incorporating five anthropogenic variables (fertilization, population density, heat flux, urbanization, road density) alongside 24 environmental factors, model performance improved significantly (R² up to 0.56 for RF). Key findings: (1) Fertilization and population density were the most influential human factors; (2) Precipitation remained the dominant predictor overall. The results highlight human activities' substantial role in soil pH variation, supporting precision agriculture and sustainable land management in intensively cultivated regions.https://www.tandfonline.com/doi/10.1080/10106049.2025.2482699Soil pHdigital soil mappinganthropogenic variablesHuang-Huai-Hai plainmachine learning models
spellingShingle Daocheng Li
Erlong Xiao
Yingxin Xia
Xingyu Liang
Mengxin Guo
Lixin Ning
Jun Yan
Improving soil pH prediction and mapping using anthropogenic variables and machine learning models
Geocarto International
Soil pH
digital soil mapping
anthropogenic variables
Huang-Huai-Hai plain
machine learning models
title Improving soil pH prediction and mapping using anthropogenic variables and machine learning models
title_full Improving soil pH prediction and mapping using anthropogenic variables and machine learning models
title_fullStr Improving soil pH prediction and mapping using anthropogenic variables and machine learning models
title_full_unstemmed Improving soil pH prediction and mapping using anthropogenic variables and machine learning models
title_short Improving soil pH prediction and mapping using anthropogenic variables and machine learning models
title_sort improving soil ph prediction and mapping using anthropogenic variables and machine learning models
topic Soil pH
digital soil mapping
anthropogenic variables
Huang-Huai-Hai plain
machine learning models
url https://www.tandfonline.com/doi/10.1080/10106049.2025.2482699
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AT xingyuliang improvingsoilphpredictionandmappingusinganthropogenicvariablesandmachinelearningmodels
AT mengxinguo improvingsoilphpredictionandmappingusinganthropogenicvariablesandmachinelearningmodels
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