Spatial Variability of the Morphological Attributes Soil Color and Texture of an Experimental Area in Santarem, Para, Brazil
Journal Title: International Journal of Agriculture Innovations and Research - Year 2018, Vol 7, Issue 2
Abstract
The study of the spatial variability and its characteristics provides the necessary information in the determination of quantitative and qualitative data. Thus, this work aimed to characterize the spatial variability of color and texture morphological attributes of the soil. The study was conducted in 84 hectares of an area. The points were geo referenced with a global positioning system receiver (GPS), where starting from a mesh in transects of 100 x 100m linear distance, the soil collections got started. A total of 97 points were identified, with soil sampling in the layers 0,0 – 0,2m, 0,4 – 0,6m and 0,8 – 1,0m, totaling 291 soil samples. Subsequently, the morphological analyzes of the color and texture attributes were performed in the field. Descriptive statistics were used to evaluate the parameters of central tendency and dispersion of the data, so that afterwards the characterization of the attributes spatial variability studied could occur. The Inverse of Weighted Distance was used to interpolate the data and make the isoline maps. The predominant texture of the area ranged from clayey to very clayey and color with nuances 2,5Y and 10YR. All variables analyzed showed spatial dependence, varying from weak to moderate degree. The data obtained will aid in the decision making for the soil profiles opening, for the purpose of a more detailed soil survey.
Authors and Affiliations
Wendel da C. Oliveira, et al.
Keywords
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