Identifying the Main Factors Contributing to the Spatial Variability of Soil Saline–Sodic Properties in a Reclaimed Coastal Area

Fei, Yuanhang; She, Dongli; Fang, Kai

doi:10.2136/vzj2018.06.0118

Cited by 7 publications

(7 citation statements)

References 60 publications

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“…Several papers in this special section address land use and management from a soil physical perspective. Using multiple regression techniques, Fei et al (2018) studied the controlling factors on soil salinity and alkalinity in a reclaimed coastal area of the Yellow Sea located in Jiangsu Province, China. They found that land use pattern (farmland vs. fallow), vegetation coverage, reclamation history, and soil texture significantly affected the soil salt content and the sodium adsorption ratio.…”

Section: This Special Sectionmentioning

confidence: 99%

Advancing Soil Physics for Securing Food, Water, Soil and Ecosystem Services

Shang

Zhu

Zhang

2018

Vadose Zone Journal

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Core Ideas Contributions are mainly from the 2017 International Soil Physics Workshop in China. Soils are fundamental in supplying food, energy, water (FEW), and ecosystem services. Interdisciplinary (convergence) approaches are needed to address FEW challenges. Soils are foundational to sustaining the food, energy, and water (FEW) systems and provide many essential ecosystem services. Soil degradation is a major threat to food security in China and elsewhere in the world. It is critical to advance soil science to improve the FEW systems so that FEW supplies can be provided to human populations in a sustainable and resilient manner. To do so, we must understand interactions among soil physical, chemical, and biological processes, as well as the role, function, and contribution of soil physical processes to delivering FEW supplies and ecosystem services. Soil processes and crop production are strongly controlled by physical processes such as soil water flow, aggregate stability, compaction, heat regime, irrigation and drainage, soil aeration, etc. Recognizing the importance of soil physics to the nexus of FEW systems, the collection in this special section mainly includes research presented at the International Workshop of Soil Physics and the Nexus of Food, Energy, and Water held on 3–5 Aug. 2017 at Shenyang, China. This special section covers diverse topics including fundamental soil physical properties and water flow, land use and agricultural management, soil organic carbon management, soil physical modeling, and transport of emerging contaminants. More future research using interdisciplinary (nexus or convergence) approaches should be undertaken to address challenges in many contemporary and emerging FEW issues.

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Section: This Special Sectionmentioning

confidence: 99%

Advancing Soil Physics for Securing Food, Water, Soil and Ecosystem Services

Shang

Zhu

Zhang

2018

Vadose Zone Journal

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“…The silt content had a significant positive correlation with soil salinity, but the sand content had a significant negative correlation with soil salinity [38]. Another study reported a significant positive correlation between soil salt content and sand content, but it was negatively correlated with the clay content [14]. We found that the TSC is significantly positively correlated with the silt content, but it is significantly negatively correlated with the clay content (Table 4).…”

Section: Soils Salinity Of the Different Soil Layers And Its Correlation With The Other Propertiesmentioning

confidence: 49%

“…In this study, soil texture (sand content, silt content, or clay content) was selected as the covariance in the cokriging prediction. This is mainly because the soil texture forms the basis of the soil structure and strongly affects the leaching of salt [14].…”

Section: Cokriging Interpolationmentioning

confidence: 99%

“…The SAR is calculated from the Na + , Mg 2+ , and Ca 2+ contents, and it is considered a more appropriate property for determining soil alkalization than a single cation concentration [13]. Knowing the spatial distribution of the SAR is also important for land reclamation and agricultural development [14]. Knowing the spatial distribution of the SOM is crucial for crop growth.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Different Interpolation Methods for Prediction of Soil Salinity in Arid Irrigation Region in Northern China

Gao

Liu

2021

Agronomy

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Numerous methods have been used in the spatial prediction of soil salinity. However, the most suitable method is still unknown in arid irrigation regions. In this paper, 78 locations were sampled in salt-affected land caused by irrigation in an arid area in northern China. The geostatistical characteristics of the soil pH, Sodium Adsorption Ratio (SAR), Total Salt Content (TSC), and Soil Organic Matter (SOM) of the surface (0–20 cm) and subsurface (20–40 cm) layers were analyzed. The abilities of the Inverse Distance Weighting (IDW), Ordinary Kriging (OK), and CoKriging (CK) interpolation methods were compared, and the Root Mean Square Error (RMSE) was used to justify the results of the methods. The results showed that the spatial distributions of the soil properties obtained using the different interpolation methods were similar. However, the surface layer exhibits more spatial heterogeneity than the subsurface layer. Based on the RSME, the nugget/sill value and range significantly affected which method was the most suitable. Lower nugget/sill values and lower ranges can be fitted using the IDW method, but higher nugget/sill values and higher ranges can be fitted using the OK method. These results provide a valuable reference for the prediction of soil salinity.

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“…To mitigate and prevent soil salinization, many conventional remediation methods had been investigated and applied, including soil substitution, soil drainage, irrigation, chemical amendments, and salt‐accumulating plants (Choi et al, 2012; Jo et al, 2015; Kim et al, 2011; Li et al, 2016; Yang et al, 2018). However, most are ineffective due to freshwater shortages (Fei et al, 2018; Liu et al, 2018), higher costs (Chen et al, 2015), longer reclamation times (Jo et al, 2012; Sun et al, 2017), or not being environmentally sustainable (Chen et al, 2019). Additionally, fine‐grained soil in coastal areas render the remediation work more difficult.…”

Section: Introductionmentioning

confidence: 99%

Application of a vertical ‘electric sieve’ to mitigate and prevent salinization in coastal soil

Zhao

Huang

et al. 2022

Land Degrad Dev

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This study explored the applications of a vertical electrokinetic system (V-EK), which consists of multilayer electrodes positioned in shallow soil to form an 'electric sieve' to mitigate and prevent soil salinization caused by salts rising from saline groundwater in coastal areas. The experiments were conducted in column reactors in the laboratory. Compared to the control column, the level of ions in the surface soil was significantly reduced after the V-EK treatment, particularly for the column with voltages at 10 V and 20 V. At a voltage of 20 V, Na + was detected at a range of 0.06-0.08 mg g À1 in the surface soil; this is a >99% reduction compared to the controls. Similar efficacy was observed for Cl À in the V-EK column. The concentrations of Cl À were detected with a range of 0.01-0.02 mg g À1 and 0.02-0.06 mg g À1 at the surface soil with a voltage of 20 V and 10 V, respectively, compared to the Cl À concentrations at 0.84-2.70 mg g À1 in the control. After the application of the vertical 'electric sieve', the total salt content of surface soil could be controlled at a low value (<0.25‰) at voltages of 10 V and 20 V, compared to that in the control column (4.86‰). Finally, rising of salts from the artificial saline groundwater was effectively mitigated under voltages of 10 V and 20 V. Results from this work have demonstrated that the 'electric sieve' can effectively mitigate and prevent salts from rising in shallow groundwater to surface soil and reduce soil salinity.

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Identifying the Main Factors Contributing to the Spatial Variability of Soil Saline–Sodic Properties in a Reclaimed Coastal Area

Abstract: Citation: Citation: Fei, Y., D. She, and K. Fang. 2018. Identifying the main factors contributing to the spatial variability of soil saline-sodic properties in a reclaimed coastal area. Vadose Zone J. 17:180118.

Cited by 7 publications

References 60 publications

Advancing Soil Physics for Securing Food, Water, Soil and Ecosystem Services

Advancing Soil Physics for Securing Food, Water, Soil and Ecosystem Services

Comparison of Different Interpolation Methods for Prediction of Soil Salinity in Arid Irrigation Region in Northern China

Application of a vertical ‘electric sieve’ to mitigate and prevent salinization in coastal soil

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