Abstract
AbstractIRS LISS III Resource SAT data (2005–07) were integrated with ground truth and soil studies for delineation and characterization of salt-affected and waterlogged soils in the Indo-Gangetic plain of central Haryana. The quality appraisal for salty ground water was also conducted prior to its use for irrigation. Such studies are useful for planning reclamation and management of salt-affected soils and poor quality ground water. Strongly sodic soils were easily identified based on the white to yellowish white tones, high spectral and low NDVI values. Waterlogged areas (surface ponding) were detected based on higher absorption in infrared range. Sodic soils with poor quality ground water showed higher reflectance from dry salts during June and freshly precipitated moist salts in March and October. Sodic soils irrigated with normal ground water showed higher cropping density and higher NDVI values. Moderately and slightly sodic soils showed mixed spectral signatures for salt crusts, moderate cropping d...
Highlights
IntroductionIn central Haryana, four districts Karnal, Kurukshetra, Panipat and Sonepat, were worst affected, showing 52% of the geographical area (TGA) under salt-affected soils (Mandal & Sharma, 2005)
Due to the use of salty ground water (60–70% of the geographical area (TGA)) for irrigation, secondary salt enrichment in soil profiles occurred along the Ghaggar and Markanda river plains (Gupta, 2010; Manchanda, 1976; Phogat, Satyavan, & Sharma, 2011)
The normal cropped areas were identified by the distinct red tones at different growth stages, while stressed vegetation was identified by lighter red tones, patchy occurrence and patchy white tones for salt crust in the saline and moist surface in waterlogged areas (Mandal & Sharma, 2010)
Summary
In central Haryana, four districts Karnal, Kurukshetra, Panipat and Sonepat, were worst affected, showing 52% of the geographical area (TGA) under salt-affected soils (Mandal & Sharma, 2005). Interpretation of Landsat images showed old levees, relict flood plain and poorly drained low-lying flats are common topographic zones with salt infestation along the Gangetic alluvial plain (Manchanda & Iyer, 1983). Due to the use of salty ground water (60–70% of TGA) for irrigation, secondary salt enrichment in soil profiles occurred along the Ghaggar and Markanda river plains (Gupta, 2010; Manchanda, 1976; Phogat, Satyavan, & Sharma, 2011)
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