Al-Qadisiyah Journal For Agriculture Sciences

The Diagnosis of Saline Degradation of chemical Properties of Sodic and Non sodic Soil and Remote Sensing Data

Authors

Aurass Muhi Taha
Saad Shaker Mahmoud
Ehab Kareem Obaid
https://doi.org/10.33794/qjas.2014.97280
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
Al-Qadisiyah Journal For Agriculture Sciences
Volume 4, Issue 2
December 2014
Page 67-81

  • Receive Date 01 December 2014
  • Revise Date 20 December 2014
  • Accept Date 25 December 2014