摘要：River is the natural flow of water from upland to plane land. The flow characteristics depend on the various factors of nature i.e. source of water, climatic condition, and topography, type of soil, geology, forest, land use / land cover and human activities. The present paper will focus on course change with societal perspective of Subarnarekha river in Gopiballavpur- I and II block. The study carried out on Geoinformatics and field observation environments. Remote Sensing and GIS analysis and Sinuosity index were used in this study to investigate river meandering and the associated processes of erosion of river bank and islands, deposition of sediments and formation of new island. The analysis shows that the Subarnarekha river is a meandering river. The analysis of Braiding index and result this index the Subarnarekha river are non braided river in the study area. The lateral erosion on the river banks led to a decrease in agricultural lands bordering the river banks and decrease in the areas of the river islands which in turn reduces the agricultural production. The study also suggests that the local people cause of river shifting and management the natural resources.
关键词：Remote Sensing & GIS;River course change;Sinuosity Index (SI);Meander;Braiding Index (BI);Non Braided River
