Catchment area

CHHATTISGARH Mahanadi row must be ended politically, not legally   The Mahanadi, which is the most important river for Odisha, is an interstate river. The total catchment area of the Mahanadi basin is 141,600 square kilometers, of which 54% is in Chhattisgarh, 46% in Odisha. In the monsoon, the Mahanadi’s discharge is almost the same as that of the Ganges. In the dry season, however, the river becomes a narrow channel. Before the construction of the Hirakud Dam in 1953, the river used to be called the ‘sorrow of Odisha’ for causing massive floods.   The average inflow of the Mahanadi into the ... Read more

Urban spheres of influence and rural urban fringe Urban spheres of influence Urban spheres of influence reflect centre-to-hinterland relationship, compared with the non-central region, the centre assumes more complex economic functions, and provides more economic activities. Famous theoretical contributions to this research field are the Central Place Theory (Christaller, 1933), the extension to the Central Place Theory (Losch, 1940), the modification to the Central Place Theory (Isard, 1956), and An Economic Theory of Central Places. After verification and conceptual refinement of these classical literatures, it can be found that any study on delineating sphere of urban influence has been guided ... Read more