Jurnal Lahan Suboptimal
Vol. 11 No. 2 (2022): JLSO

Deciphering Spatial Variability and Kriging Mapping for Soil pH and Groundwater Levels

M Edi Armanto (Faculty of Agriculture, Universitas Sriwijaya, Palembang 30662, South Sumatra, Indonesia)
Mohd Zuhdi (Faculty of Agriculture Jambi University, Jambi 36122, Jambi, Indonesia)
Dedi Setiabudidaya (Faculty of Mathematics and Natural Sciences, Universitas Sriwijaya, Indralaya 30662, South Sumatra, Indonesia)
Ngudiantoro Ngudiantoro (Faculty of Mathematics and Natural Sciences, Universitas Sriwijaya, Indralaya 30662, South Sumatra, Indonesia)
Elisa Wildayana (Faculty of Agriculture, Universitas Sriwijaya, Palembang 30662, South Sumatra, Indonesia)
Agus Hermawan (Faculty of Agriculture, Universitas Sriwijaya, Palembang 30662, South Sumatra, Indonesia)
Momon Sodik Imanudin (Faculty of Agriculture, Universitas Sriwijaya, Palembang 30662, South Sumatra, Indonesia)



Article Info

Publish Date
01 Oct 2022

Abstract

Spatial variability of peatlands is mostly related to natural variations and environment. Thus, it is natural and manageable. This study aimed to determine deciphering spatial variability and kriging mapping for soil pH and groundwater levels. The study was conducted on peatlands in Seponjen Village, Kumpeh Sub-District, Muaro Jambi District, Jambi. The collected data were analyzed using ArcGIS 10.3 and Geostatistics. The validation analysis of soil pH showed good performance where the actual soil pH and the estimated results of soil pH had the same fluctuation pattern, with high reliability (r = 0.94) and accuracy (R2 = 0.89) positive. It means that the interpolation performance of soil pH data can be used to create soil pH maps. The soil pH on very thick peat (the area A) showed a strong autocorrelation with a variogram range of 768 m, while on medium peat (the area B) it showed an anisotropic tendency towards rivers with a maximum variability of 273 m. The depth of the groundwater levels in the two areas is autocorrelative, it has a spatial dependence where the variability of the groundwater levels is small at close ranges and increases at long distances.

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Journal Info

Abbrev

jlso

Publisher

Subject

Agriculture, Biological Sciences & Forestry

Description

Jurnal Lahan Suboptimal: Journal of Suboptimal Lands (JLSO) (p-ISSN 2252-6188; e-ISSN 2302-3015) publishes original research papers, literature reviews, and short communications that cover on topics relevant to suboptimal lands: freshwater swamps, tidal lowlands, peatlands, dry and dry acid lands, ...