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Varability of some soil physical and chemical properties of soil inNorth Tikrit by Time Series Analysis | ||
| Euphrates Journal of Agriculture Science | ||
| Article 1, Volume 5, Issue 4, 2013, Pages 165-175 | ||
| Abstract | ||
| Abstract Eleven soil series were included in this study in the area of North Tikrit Agicultural project located between (42º 40׳ 43״ )(43º 44׳ 4״) Longitudes in the east and latitudes between (34º 45׳ 3״)(35º 44׳ 50״) in the north . One strip transect perpendicular were selected on the soil map of the project from north to south ,and was made extensive map units determind a transect of 33000 meter . The variabilitys of soil physical and chemical properties were studied horizontally by( Time Series Analysis),the main results were as following : - Variability in physical and chemical soil properties . - The more appropraite of stochastic model to specify spatial variability of soil properties is MA(1) anda few of Autoregressive model AR(1) . - This study suggests a new techniqe in soil sampling in order to be more efficient and reliable by depending on the use of Correlogram and Variogram . - The properties which have spatial dependence require less number of samples in transect compared with random distribution. | ||
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