Spatial Distribution of Some Physical and Chemical Properties of Soil using Geostatistic Methods (Case study: Zabol to Zahedan Route)

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Behnam Vali; GHOLAMALIZADEH AHANGAR AHMAD; RAHMANIAN MOHAMMAD; Bameri Abulfazl

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Journal: JOURNAL OF ENVIRONMENT AND WATER ENGINEERING Year:2019 | Volume:5 | Issue:3 Page(s): 251-263

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Information Journal Paper

Title

Spatial Distribution of Some Physical and Chemical Properties of Soil using Geostatistic Methods (Case study: Zabol to Zahedan Route)

Author(s)

Behnam Vali | GHOLAMALIZADEH AHANGAR AHMAD | RAHMANIAN MOHAMMAD | Bameri Abulfazl | Issue Writer Certificate

Keywords

Kriging

Cokriging

Soil Properties

Spatial Variations

Sustainable Land Management

Abstract

Soil characteristics have Spatial Variations. Understanding Spatial Variations of soil characteristics is among the effective factors in Sustainable Land Management. A better understanding the effects of management factors on soil characteristics need to quantify their heterogeneity and variability. This research was conducted with the aim of investigating Spatial Variations of some soil characteristics such as soil texture (clay, silt and sand), calcium carbonate (CaCo3), soil acidity (pH), and soil salinity using geostatistic methods. For this purpose, 252 soil samples (from 0 to 20 cm depth) were prepared from the study area and physical and chemical properties of soil were measured. After normalizing the data, the half-shift of each of the studied characteristics was calculated and the best model was fitted to them. Then, the characteristics of the study were estimated through different methods of conventional Kriging, simple Kriging, discrete Kriging and Inverse Distance Weighted (IDW) using ArcGIS software. The accuracy of the estimation was evaluated using the mean absolute error (MAE), the mean bias error (MBE), and the root mean square error (RMSE). The results showed that the best model for the acidity was the spherical model and for the other measured variables was the exponential model. Moreover, the conventional CoKriging method for clay, calcium carbonate and acidity (pH), IDW method for silt and soil salinity, and conventional Kriging method for sand were better than other methods used and provided more accurate estimates.

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APA: Copy

Behnam, Vali, GHOLAMALIZADEH AHANGAR, AHMAD, RAHMANIAN, MOHAMMAD, & Bameri, Abulfazl. (2019). Spatial Distribution of Some Physical and Chemical Properties of Soil using Geostatistic Methods (Case study: Zabol to Zahedan Route). JOURNAL OF ENVIRONMENT AND WATER ENGINEERING, 5(3 ), 251-263. SID. https://sid.ir/paper/268821/en

Vancouver: Copy

Behnam Vali, GHOLAMALIZADEH AHANGAR AHMAD, RAHMANIAN MOHAMMAD, Bameri Abulfazl. Spatial Distribution of Some Physical and Chemical Properties of Soil using Geostatistic Methods (Case study: Zabol to Zahedan Route). JOURNAL OF ENVIRONMENT AND WATER ENGINEERING[Internet]. 2019;5(3 ):251-263. Available from: https://sid.ir/paper/268821/en

IEEE: Copy

Vali Behnam, AHMAD GHOLAMALIZADEH AHANGAR, MOHAMMAD RAHMANIAN, and Abulfazl Bameri, “Spatial Distribution of Some Physical and Chemical Properties of Soil using Geostatistic Methods (Case study: Zabol to Zahedan Route),” JOURNAL OF ENVIRONMENT AND WATER ENGINEERING, vol. 5, no. 3 , pp. 251–263, 2019, [Online]. Available: https://sid.ir/paper/268821/en

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