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Bibliothèque Determining and mapping some soil physico-chemical properties using geostatistical and GIS techniques in the Naqade region, Iran

Determining and mapping some soil physico-chemical properties using geostatistical and GIS techniques in the Naqade region, Iran

Determining and mapping some soil physico-chemical properties using geostatistical and GIS techniques in the Naqade region, Iran

Resource information

Date of publication
Décembre 2013
Resource Language
ISBN / Resource ID
AGRIS:US201500160200
Pages
1573-1589

The distribution variability of soil electrical conductivity (EC), pH, clay, sand, CaCO ₃, organic carbon (OC) and available potassium (K) in the Naqade region was investigated using a geostatistical method and Geographical Information System (GIS) technique. Two hundred and eighty-two topsoil (0–30 cm) samples were randomly collected and analyzed. pH and clay followed a normal distribution, whereas sand EC, CaCO ₃, OC and K were log-transformed. The highest variation was observed for soil EC, and the lowest for soil pH. In the variography analysis, spherical, exponential and gaussian models were best fit on experimental semivariograms. The minimum effective spatial autocorrelation was 1500 m for OC and the maximum effective spatial autocorrelation was 4000 m for sand and K. Strong spatial correlations were noted with sand and CaCO ₃ (

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Authors and Publishers

Author(s), editor(s), contributor(s)

Mousavifard, Seyyedeh Mahbube
Momtaz, Hamidreza
Sepehr, Ebrahim
Davatgar, Naser
Sadaghiani, Mir Hassan Rasouli

Publisher(s)
Data Provider
Geographical focus