ABILITY OF GEOSTATISTICS TO MAPPING SOIL SALINIZATION DISTRUBIATION IN EACH SOIL SERISE : A CASE STUDY ON CENTRAL IRAN SOIL
Publish place: The 1st International Conference on New Ideas in Agriculture
Publish Year: 1392
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
NIAC01_177
تاریخ نمایه سازی: 25 فروردین 1394
Abstract:
Increasing soil salinization rate its important environment crises in the last decades especially in dry and semi dry lands . to determination soil salinization distribution in each soil series in central iran soil we use ordinary kriging(OK) and indicator kriging(IK) technique. OK its simple method of gesostatistics technique that used to mapping the distribution of quanitative variable. Soil series are a categorical variable Most of the techniques for mapping the distribution of categorical variables demand high level of knowledge and technical support . in current study to mapping soil series we use a simple interpolation method of geostatic techniques that called indicator kriging (IK) .the indicator approach is used to describe the spatial variability of categorical soil data. To run these two technique 120 soil profile where excavated and described to identifying all soil series in whole study area. finally 9 soil series where identified . all 120soil profile where analyzed(0-30cm) to determine their EC(electrical conductivity) and creating the distribution map in study area . To creating the distribution map with each two method (OK and IK) the ilwis software were used. Finally the predicted map can show the distribution of salinization in all 9 identified soil series in study area. So this method can be useful tools to manage land resource.
Keywords:
Authors
Khaled zaeri
young researchers club,susangeard branch,islamic azad university,susangeard,iran hoveyzeh municipality ,green space department
saham shelyji
agriculture department ,payam noor university , susangerd branch
Mohamad pour khasraj
agriculture department ,payam noor university , susangerd branch
norair toomanian
Isfahan Agricultural and Natural Resources Research Center, Amireh Town, Isfahan, Iran.