Alteration in the hydrological system and ecological situation within CER is highly seen fromrnmid 1970s due to both anthropogenic and natural factors. Humans usually and veryrndramatically accelerate natural processes often unintentionally but usually in the coursernactivities like agriculture, industry and urban development. An attempt has been made tornassess and map the spatial and temporal variability of these changes with respect to drivingrnforces and to determine water resource including wetland priority areas for conservation andrnmanagement purpose based on tendency of the land use and direction of denudation usingrnRemote Sensing and GIS techniques.rnLandsat satellite images having different sensors, meteorological data, hydrological data arernpossible data sources were used in order to accomplish the study. Satellite imageries of 1973,rn1986, 2000 and 2011 were used to map LULC and change detection analysis. In addition tornthis, specifically delineation of wetlands and mapping of wetland types using criterion layersrnsatellite imagery analysis has been adopted. The change detection shows a cultivated land isrnincreased by 42% from 1973 to that of 2011, whereas wetlands/water bodies (small part of anrnarea) are reduced by 4% which has great impact on ecological diversity and hydrology of thernarea. The major possible causes identified for destruction of wetlands, fluctuation of lakesrnlevel and its volume within CER are climate variability, poor land use system, imbalance ofrnwater inflow and outflow to/from the lakes, deforestation and overgrazing, diversion of riverrncanals and water abstraction for irrigation purpose, water abstraction for soda ash extractionrnand sedimentation to the lakes. The result from an integration analysis showed thatrnhydrological and ecological system is in a dynamic disequilibrium to which the outlookrnseems very bad. However, to alleviate these problems the best solution is to create awarenessrntowards wetland ecosystem value for the resident communities and to formulate/regulaternpolicy on wise use of water resources including wetlands for its protection and conservation.