Spatial Distribution of Soil Water and Salt in a Slightly Salinized Farmland

It is important to study the mechanisms associated with the spatial distribution of soil water and salt to control soil salinization and promote the sustainable development of farmland. Six plots in a slight farmland with different spatial locations were selected to determine the spatial distributio...

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Bibliographic Details
Published in:Sustainability 2023-04, Vol.15 (8), p.6872
Main Authors: Ke, Zengming, Liu, Xiaoli, Ma, Lihui, Jiao, Feng, Wang, Zhanli
Format: Article
Language:English
Subjects:
Agricultural land
Correlation
Distribution
Drainage
Environmental aspects
Fractals
Geostatistics
Grid method
Measurement
Moisture content
Physiological aspects
Salinization
Salt
Salts
Sampling
Soil layers
Soil moisture
Soil salinity
Soil water
Soils, Salts in
Spatial distribution
Statistical analysis
Sustainability
Sustainable development
Testing
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Summary:It is important to study the mechanisms associated with the spatial distribution of soil water and salt to control soil salinization and promote the sustainable development of farmland. Six plots in a slight farmland with different spatial locations were selected to determine the spatial distribution of soil water and salt and their correlation using the multifractal method. Each plot was applied using the grid method (15 m × 15 m, 3600 m2), where each sampling site was located at the center point coordinates. The 0–20 and 20–40 cm soil layers were sampled.The spatial variability of the soil water and salt were 1.41 and 1.73 fold higher in the upstream farmland than in the downstream farmland. The spatial variability of the soil water and salt was significantly correlated. In addition, the spatial variability of the soil water and salt significantly correlated in the 0–20 and 20–40 cm layers. The spatial distribution of both soil water and salt in the entire soil layer had similar characteristics at this sampling scale. Our results provide a theoretical basis to study the interactive mechanisms associated with the distribution of soil water and salt.
ISSN:2071-1050
2071-1050
DOI:10.3390/su15086872