Characterizing Spatial Variability of Soil Properties in Salt Affected Coastal Bangladesh using Geostatistics and kriging

It's critical to have a better understanding of the spatial variability of soil properties to improve sustainable land use and agricultural management methods. Assessing the effects of land use and climate change on soil nutrient storage and developing and evaluating process models may both benefit from relating soil parameters to site features. 

The majority of nutrients—such as nitrogen, soil organic carbon, phosphorus, etc. were present in proportions that were entirely very low. To improve the soil's fertility status, it is necessary to add the right nutrients, such as N and P, from both organic and inorganic sources. Farmers will be benefited from the geographical distribution and mapping of the study area as they use it to make effective management choices based on an accurate understanding of the state of the soils under various land uses. These findings can be utilized to improve the living conditions of smallholder farmers and to suggest appropriate management strategies for the area.

This study confirms that a geostatistical approach can be applied for assessing high-risk areas of soil salinity and nutrient deficiency which requires some immediate remedial treatment and an effective management plan providing an informed decision support to help farmers. Traditional techniques do not provide any measurement of the reliability of the estimates; thus, no risk assessment can be made. Critical concentrations of electrical conductivity or other soil properties may be estimated and farmers may be advised to act, and an appropriate and effective soil and crop management plan can be developed based on these estimates.

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