Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Accueil du site → Doctorat → Inde → 2003 → Hydrogeological studies in the bonai subdivision of Sundargarh district Orissa India

Sambalpur University (2003)

Hydrogeological studies in the bonai subdivision of Sundargarh district Orissa India

Sahu, Pramod Chandra

Titre : Hydrogeological studies in the bonai subdivision of Sundargarh district Orissa India

Auteur : Sahu, Pramod Chandra

Université de soutenance : Sambalpur University

Grade : Doctor of Philosophy (PhD) in Science (Geology) 2003

Résumé partiel
Sundargarh is a drought-prone and economically backward district of Orissa. The area experiences drought frequently because of erratic nature of rainfall over space and time. The water scarcity is chronic during summer season. The agricultural land which are mostly rainfed bear the adverse effects of drought resulting in croploss. Surface water irrigation is limited and not dependable due to vagaries of monsoon rainfall. This district requires vast development of groundwater through suitable groundwater structures to combat drought and to increase crop yield by covering more areas under irrigation. In view of the above facts, an attempt has been made for the hydrogeological studies in the Bonai subdivision of Sundargarh district, where till today very little work has been done in this regard. The present work has helped to understand the role played by geomorphological, lithological, climatological, hydrogeological, hydrogeochemical factors in the occurrence, distribution, movement, recharge-discharge and quality of groundwater in this study area. The area under study lies between the latitudes 21° 35’ to 22° 10’ N and longitudes 84° 30’ to 85° 25’ E having a total geographical area of 2200 Sq. Km comprising four administrative blocks of Bonai subdivision of Sundargarh district. According to 2001 census, the total population of the area is 2,76,792. The area enjoys a sub-tropical climate with very hot summer (46°C) and very cold winter (5°C). Major portion of the rainfall is contributed by the south-west monsoon during June to September. Physiographically the area is marked by hills with intervening narrow intermontane valleys, isolated hillocks and flat to gentle undulating plains. River Brahmani forms the major drainage of the area. The drainage pattern is dendritic. The most common soil types in the area are Alfisols and Ultisols. The total cultivable and cultivated area are 71,585 Hect. and 54,784 Hect. respectively. While paddy is the principal crop, the other crops grown are maize, mustard, Jowar, groundnut, arhar, blackgram, sugarcane, wheat and other pulses. Opencast mining activity for iron and manganese ores are restricted to Koira block only

Présentation et version intégrale (Shodhganga)

Page publiée le 2 avril 2021