Studies in Photogrammetry: Geomorphic Studies of Sojat from Aerial Photographs to Delineate Land Forms

The land form units demarcated on the aerial photographs covering Sojat town and its surrounding areas are (1) flat topped hills of sedimentary formations; (2) piedmont fringe; (3) nearly level older alluvial plains; (4) flood plains and (5) river bed. The hills are massive in form and mesa-like; the bare surface of the piedmont fringe is concave and smooth with occasional short drainage channels. The flood plains are of recent origin. The older alluvial plains have been formed during the Pleistocene period. Tree vegetation is sparse and mostly formed along the field boundaries and common pasture land. The flood plains are comparatively at a lower level than the older alluvial plains and occur marginal to the Sukri river. There is an abrupt fall between this surface and the river bed. The general tone on photographs is light grey but there are more irrigated fields with standing crops that look darker in tone. The whole area is under intensive agriculture and the size of holdings is small. The flood plains have much higher water potential than the adjoining older alluvial plains and piedmont fringe.