Spatial characteristics and critical groundwater depth of soil salinization in arid artesian irrigation area of northwest China
Soil salinization readily occurs in artesian irrigation areas within arid regions due to prolonged irrigation, leading to diminished soil productivity and consequential impacts on regional food security and ecological stability. The present study focuses on the northern area of Qingtongxia artesian...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Agricultural Water Management |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0378377424005328 |
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| author | Cui Chang Guiyu Yang Shuoyang Li Hao Wang Yaomingqi Song |
| author_facet | Cui Chang Guiyu Yang Shuoyang Li Hao Wang Yaomingqi Song |
| author_sort | Cui Chang |
| collection | DOAJ |
| description | Soil salinization readily occurs in artesian irrigation areas within arid regions due to prolonged irrigation, leading to diminished soil productivity and consequential impacts on regional food security and ecological stability. The present study focuses on the northern area of Qingtongxia artesian irrigation district in Ningxia, the spatial characteristics of soil salinity were investigated using the three-dimensional inverse distance weight interpolation, and the types of soil salt accumulation were determined. Furthermore, the high probability partition of each type was determined by the Indicator Kriging method. Additionally, the path analysis method was employed to determine the critical groundwater depth, which is a significant factor influencing the occurrence and development of soil salinization. The results indicate the salt accumulation types in the soil profile are divided into surface accumulation (SA) type, middle accumulation (MA) type, and bottom accumulation (BA) type. The depth to groundwater is a crucial influential factor, with critical depths prior to spring irrigation identified for each type: 2.1 m for the SA type and 1.8 m for both MA and BA types. To mitigate salinization deterioration, it is essential that the depth to groundwater in the distribution area of each type exceeds the corresponding critical depth. |
| format | Article |
| id | doaj-art-49ead85b4f4644829819809bc4648f06 |
| institution | Kabale University |
| issn | 1873-2283 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Agricultural Water Management |
| spelling | doaj-art-49ead85b4f4644829819809bc4648f062025-01-07T04:16:41ZengElsevierAgricultural Water Management1873-22832025-02-01307109196Spatial characteristics and critical groundwater depth of soil salinization in arid artesian irrigation area of northwest ChinaCui Chang0Guiyu Yang1Shuoyang Li2Hao Wang3Yaomingqi Song4School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, PR ChinaState Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, PR China; Corresponding author.State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, PR China; State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, PR ChinaState Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, PR ChinaSchool of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, PR China; State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, PR ChinaSoil salinization readily occurs in artesian irrigation areas within arid regions due to prolonged irrigation, leading to diminished soil productivity and consequential impacts on regional food security and ecological stability. The present study focuses on the northern area of Qingtongxia artesian irrigation district in Ningxia, the spatial characteristics of soil salinity were investigated using the three-dimensional inverse distance weight interpolation, and the types of soil salt accumulation were determined. Furthermore, the high probability partition of each type was determined by the Indicator Kriging method. Additionally, the path analysis method was employed to determine the critical groundwater depth, which is a significant factor influencing the occurrence and development of soil salinization. The results indicate the salt accumulation types in the soil profile are divided into surface accumulation (SA) type, middle accumulation (MA) type, and bottom accumulation (BA) type. The depth to groundwater is a crucial influential factor, with critical depths prior to spring irrigation identified for each type: 2.1 m for the SA type and 1.8 m for both MA and BA types. To mitigate salinization deterioration, it is essential that the depth to groundwater in the distribution area of each type exceeds the corresponding critical depth.http://www.sciencedirect.com/science/article/pii/S0378377424005328Soil salinitySpatial characteristicsSalt accumulation typeCritical groundwater depthArtesian irrigation area |
| spellingShingle | Cui Chang Guiyu Yang Shuoyang Li Hao Wang Yaomingqi Song Spatial characteristics and critical groundwater depth of soil salinization in arid artesian irrigation area of northwest China Agricultural Water Management Soil salinity Spatial characteristics Salt accumulation type Critical groundwater depth Artesian irrigation area |
| title | Spatial characteristics and critical groundwater depth of soil salinization in arid artesian irrigation area of northwest China |
| title_full | Spatial characteristics and critical groundwater depth of soil salinization in arid artesian irrigation area of northwest China |
| title_fullStr | Spatial characteristics and critical groundwater depth of soil salinization in arid artesian irrigation area of northwest China |
| title_full_unstemmed | Spatial characteristics and critical groundwater depth of soil salinization in arid artesian irrigation area of northwest China |
| title_short | Spatial characteristics and critical groundwater depth of soil salinization in arid artesian irrigation area of northwest China |
| title_sort | spatial characteristics and critical groundwater depth of soil salinization in arid artesian irrigation area of northwest china |
| topic | Soil salinity Spatial characteristics Salt accumulation type Critical groundwater depth Artesian irrigation area |
| url | http://www.sciencedirect.com/science/article/pii/S0378377424005328 |
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