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Deciphering Soil Spatial Variability through Geostatistics and Interpolation Techniques

Authors :
Mohamed A. Abdel-Rahman
Mohamed M. Metwaly
Yasser M. Zakarya
Georgios Koubouris
Source :
Sustainability, Vol 13, Iss 194, p 194 (2021), Sustainability, Volume 13, Issue 1
Publication Year :
2021
Publisher :
MDPI AG, 2021.

Abstract

Detailed knowledge of soil properties is fundamentally important for optimizing agriculture practices and management. Meanwhile, the spatial distribution of soil physicochemical properties is considered a fundamental input of any sustainable agricultural planning. In the present study, ordinary kriging, regression kriging and IDW were chosen for deciphering soil spatial variability and mapping soil properties in a reclaimed area of the Behera Governorate of Egypt where soil arose from two different types, one sandstone and the other limestone. Geostatistics were used to show the interrelationships and conditions of soil properties (available phosphorus, potassium and nitrogen, EC, pH, Sp, ESP, CEC, OC, SAR, and CaCO3). The results of mapping spatial soil variability by Geostatistics could be used for precision agriculture applications. Based on the soil test results, nutrient management recommendations should be applied regarding variable rates of fertilizers. The performance of the maps was evaluated using Mean square error (MSE). Inverse distance weight (IDW) showed higher efficiency than Kriging as a prediction method for mapping the studied soil properties in the study area. The results of the present study suggest that the application of the selected fit model worldwide in any relevant study of soil properties of different geological sources is feasible.

Details

Language :
English
ISSN :
20711050
Volume :
13
Issue :
194
Database :
OpenAIRE
Journal :
Sustainability
Accession number :
edsair.doi.dedup.....aec2ca77e013973ba410a33c26ff91d5