Soil Texture Mapping in Songnen Plain of China Using Sentinel-2 Imagery
Soil texture is a key physical property that affects the soil’s ability to retain moisture and nutrients. As a result, it is of extreme importance to conduct remote sensing monitoring of soil texture. Songnen Plain is located in the black soil belt of Northeast China. The development of satellite im...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-11-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/15/22/5351 |
| _version_ | 1797457859425861632 |
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| author | Miao Zheng Xiang Wang Sijia Li Bingxue Zhu Junbin Hou Kaishan Song |
| author_facet | Miao Zheng Xiang Wang Sijia Li Bingxue Zhu Junbin Hou Kaishan Song |
| author_sort | Miao Zheng |
| collection | DOAJ |
| description | Soil texture is a key physical property that affects the soil’s ability to retain moisture and nutrients. As a result, it is of extreme importance to conduct remote sensing monitoring of soil texture. Songnen Plain is located in the black soil belt of Northeast China. The development of satellite imagery in remote sensing technology enables the rapid monitoring of large areas. This study aimed to map the surface soil texture of cultivated land in Songnen Plain using Sentinel-2 images and Random Forest (RF) algorithm. We conducted this study by collecting 354 topsoil (0–20 cm) samples in Songnen Plain and evaluating the effectiveness of the bands and spectral indices of Sentinel-2 images and RF algorithm in predicting soil texture (sand, silt, and clay fractions). The results demonstrated that the 16 covariates were moderately and highly correlated with soil texture. And, Band11 of Sentinel-2 images could be used as the corresponding band of soil texture. For sand fraction, the Sentinel-2 images and RF algorithm’s Coefficient of Determination (R<sup>2</sup>) and Root Mean Square Error (RMSE) were 0.77 and 10.48%, respectively, and for silt fraction, they were 0.75 and 9.38%. Sand fraction decreased from southwest to northeast in Songnen Plain, while silt and clay fractions increased. We found that the Songnen Plain was affected by water erosion and wind erosion, in the northeast and southwest, respectively, providing reference for the implementation of Conservation Tillage policies. The outcome of the study can provide reference for future soil texture mapping with a high resolution. |
| first_indexed | 2024-03-09T16:29:46Z |
| format | Article |
| id | doaj.art-c9b12a91c9104b0dae431de7fbe589bc |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-09T16:29:46Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-c9b12a91c9104b0dae431de7fbe589bc2023-11-24T15:04:33ZengMDPI AGRemote Sensing2072-42922023-11-011522535110.3390/rs15225351Soil Texture Mapping in Songnen Plain of China Using Sentinel-2 ImageryMiao Zheng0Xiang Wang1Sijia Li2Bingxue Zhu3Junbin Hou4Kaishan Song5College of Geographic Science and Tourism, Jilin Normal University, Siping 136000, ChinaState Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, ChinaState Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, ChinaState Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, ChinaState Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, ChinaState Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, ChinaSoil texture is a key physical property that affects the soil’s ability to retain moisture and nutrients. As a result, it is of extreme importance to conduct remote sensing monitoring of soil texture. Songnen Plain is located in the black soil belt of Northeast China. The development of satellite imagery in remote sensing technology enables the rapid monitoring of large areas. This study aimed to map the surface soil texture of cultivated land in Songnen Plain using Sentinel-2 images and Random Forest (RF) algorithm. We conducted this study by collecting 354 topsoil (0–20 cm) samples in Songnen Plain and evaluating the effectiveness of the bands and spectral indices of Sentinel-2 images and RF algorithm in predicting soil texture (sand, silt, and clay fractions). The results demonstrated that the 16 covariates were moderately and highly correlated with soil texture. And, Band11 of Sentinel-2 images could be used as the corresponding band of soil texture. For sand fraction, the Sentinel-2 images and RF algorithm’s Coefficient of Determination (R<sup>2</sup>) and Root Mean Square Error (RMSE) were 0.77 and 10.48%, respectively, and for silt fraction, they were 0.75 and 9.38%. Sand fraction decreased from southwest to northeast in Songnen Plain, while silt and clay fractions increased. We found that the Songnen Plain was affected by water erosion and wind erosion, in the northeast and southwest, respectively, providing reference for the implementation of Conservation Tillage policies. The outcome of the study can provide reference for future soil texture mapping with a high resolution.https://www.mdpi.com/2072-4292/15/22/5351soil particle-size fractionsdigital soil mappingrandom forestPhaeozemsChernozemsCambisols |
| spellingShingle | Miao Zheng Xiang Wang Sijia Li Bingxue Zhu Junbin Hou Kaishan Song Soil Texture Mapping in Songnen Plain of China Using Sentinel-2 Imagery Remote Sensing soil particle-size fractions digital soil mapping random forest Phaeozems Chernozems Cambisols |
| title | Soil Texture Mapping in Songnen Plain of China Using Sentinel-2 Imagery |
| title_full | Soil Texture Mapping in Songnen Plain of China Using Sentinel-2 Imagery |
| title_fullStr | Soil Texture Mapping in Songnen Plain of China Using Sentinel-2 Imagery |
| title_full_unstemmed | Soil Texture Mapping in Songnen Plain of China Using Sentinel-2 Imagery |
| title_short | Soil Texture Mapping in Songnen Plain of China Using Sentinel-2 Imagery |
| title_sort | soil texture mapping in songnen plain of china using sentinel 2 imagery |
| topic | soil particle-size fractions digital soil mapping random forest Phaeozems Chernozems Cambisols |
| url | https://www.mdpi.com/2072-4292/15/22/5351 |
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