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Accueil du site → Doctorat → Inde → 1990- 1999 → Satellite remote sensing technique in the assessment of salinity in Gujarat and its impact on vegetation

Maharaja Sayajirao University of Baroda (1990)

Satellite remote sensing technique in the assessment of salinity in Gujarat and its impact on vegetation

Gore,Sandhya R

Titre : Satellite remote sensing technique in the assessment of salinity in Gujarat and its impact on vegetation

Auteur : Gore,Sandhya R

Université de soutenance : Maharaja Sayajirao University of Baroda

Grade : Doctor of Philosophy (PhD) in Botany 1990

Objectifs
To select the proper season (summer/winter) and suitable data products vi3., Landsat TM/MSS and TERRA (Kate-140) to study salinity development in the study area.
To detect and classify saline affected lands of Khambhat taluka by visual image interpretation of multidate, multispectral and multiseasonal satellite data to assess the degradation since 1975.
To overlay the saline degradation pattern on the cadastral maps of some villages and to assess the utility of TM data, for microlevel studies on the ownership plot basis.
To assess the vegetational changes in correlation with the different levels of salinity by visual Image interpretation and digital analysis of the satellite data products.
To identify the potentialities of IRS-1A LISS II data for salinity and vegetational studies and develop suitable techniques for Soil Brightness Index ’and Vegetational Index.
Further to survey the site of study for learning the changes in the agricultural pattern, the soil, the distribution of vegetation etc.
To correlate the different classes of salinityidentified with the chemical compositions of soils. viii. To investigate the degradation in crop productivity from the affected field.
To screen different rice cultivars under laboratory conditions to test their tolerance to salinity and to transfer the knowhow to the farmers as a measure towards better farming in the stressed lands.
To attempt field trials using the different saline tolerant rice cultivars to regreen saline lands as a bio-reclamative attempt.

Thus the main objective of this study was to fully tap the potentialities of this newly developed and advanced remote sensing technique in detecting the saline land and vegetational status in the degraded lands of Khambhat taluka and also to suggest possible ways to improve the crop/vegetation stand in the affected lands. Présentation et version intégrale (Shodhganga)

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