Zoning of soil’s salinity by using Kriging,Cokriging methods, inverse distanceweight method of and kriging regression


  • Авторы:Nasiri Abouzar, Shojaei Saeed, Ali Asghari, Absalan Yahya, Shirokova V.A., Zareie Sajad
  • Журнал:Elixir international journal (Agriculture)
  • Том:97
  • Год издания:2016
  • Первая страница:41845
  • Последняя страница:41847
  • Аннотация:In recent years most of countries particularly pay attention on soil’s salinity because reducing water quality,reducing efficient of agronomy products and extension of desertification are come from that phenomenon.Iran is one of only three countries where is encountered to soil’s salinity.one of ways to control salinity is investigation range and addition of it in an area, and in the next step prevention and elimination of problem will be considered.The research has been done in Zahedan’s area in order to examination of soil’s salinity(electricity transfer) with exploitation of geostatistical procedure. Geostatistical factors are used by Kriching, Cokriching, inverse distance weight method and Kriching regression. The 300 points have been done in order to determination of amount of electricity transfer in horizontal and vertical state by electromagnetic inductor device.Three depths of 0-30,30-60 and 60-90 cm have been investigated.According to obtained results the least sum of error in three depths in Kriging regression than three others method illustrate how the method is high benefit and accurate and the method has been chosen to determination of soil’s salinity.Coefficient of soil salinity in regression model in 0-30,30-60 and 60-90 depths have been obtained 0.22,0.27 and 0.32 respectively.According to obtained map, whatever we go down from surface to depth of soil, salinity becomes lower soit has to be more considered to harvest and cultivate.According to low cost and high accuracy of the Kriging regression method, it can be used for zoning of soil’s salinity.
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