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The Diagnosis of Saline Degradation of chemical Properties of Sodic and Non sodic Soil and Remote Sensing Data | ||
| Al-Qadisiyah Journal For Agriculture Sciences | ||
| Article 1, Volume 4, Issue 2, 2014, Pages 67-81 PDF (0 K) | ||
| DOI: 10.33794/qjas.2014.97280 | ||
| Authors | ||
| Aurass Muhi Taha; Saad Shaker Mahmoud; Ehab Kareem Obaid | ||
| Abstract | ||
| The aim of this study is to diagnose the saline degradation of soil chemical properties , that is predicted by spectral indices which is derived from Landsat7 ETM+ DATA , where soil salinity , ESP% and SAR mapping , by multiregression analysis with generalized difference vegetation index (GDVI2) and salinity index (SI) , with high R2 significantly : 0.88 , 0.93 and 0.86 for each soil chemical properties respectively . Such saline degradation of soil classes scaling depends on correspond soil salinity value to ESP% and SAR value . The spatial analysis shows that Non degradation soils class (D0) reach to 5.55% from study area , salt affected soils class (D1) reach to 21.89% from the study area , sodium affects saline soils class (D2) reach to 44.47% from the study area and desert soils of saline class (D3) reaches to 28.09% from the study area . | ||
| Keywords | ||
| soil degradation; Saline Soils; remote sensing; Soil Digital Maps; GDVI | ||
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