Land use change detection along the Pravara River basin in Maharashtra, using remote sensing and GIS techniques
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Kiadó
University of Debrecen, Institute of Earth Sciences
Absztrakt
Leírás
In the past few decades there has been an increasing pressure of population all over the world,especially in India, resulting in the utilization of every available patch of available land fromwoodlands to badlands. The study area represents a basin which is economically growing fast byconverting the fallow lands, badlands and woodlands to agricultural land for the past few decades.IRS (Indian Remote sensing Satellites) 1 C – LISS III and IRS 1 C PAN and IRS P6 – LISS III andIRS 1 D PAN Images were merged to generate imageries with resolution matching to the landscapeprocesses operating in the area. The images of the year 1997, 2000, 2004 and 2007 were analyzed todetect the changes in the landuse and landcover in the past ten years. The analysis reveals that therehas been 20% increase in the agricultural area over the past ten years. Built up area also has increasedfrom 1.35% to 6.36% of the area and dense vegetation also has marginally increased. The remarkableincrease in the agricultural area occurs owing to the reclaim of the natural ravines and fallow lands.Presently the area looks promising, but it is necessary to understand the sedimentological andgeomorphological characteristics of the area before massive invasion on any such landscapes becausethe benefit may be short lived.
Kulcsszavak
IRS, land use, land cover, badland, agriculture, land degradation