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Agriculture is a key economic sector in Bangladesh and one of the main users of fresh water resources. At present, climate change is thought to be putting extra stress on agricultural productivity and hence food security because climate change may lead to changes in irrigation water requirement. Most of the studies related to the effects of climate change on irrigation water requirement have been done based only on changes of temperature and/or rainfall. Other climatic variables, such as solar radiation, humidity and wind speed, which may also affect the irrigation water requirement, were not...

Salinization has been established as the prime cause of environmental degradation in the region and there is an urgency to find out a better water management practice. Four different types of agro-water management practices (AWMPs) were selected for investigation. Major soil and water quality parameters (temperature, salinity, pH, EC, TDS, DO, HCO3-, Ca2+, Mg2+, Cl-, Na+, K+, SO42-, NO3-, etc.) during the pre- and post-boro season of 2009-10 were analyzed to calculate the mean soil and water quality change indicators (MSQI, MWQI). Besides these, management parameters, such as cropping...

This book provides an opportunity to understand the cause-effect relation between water resources development interventions and brackish water ecosystems in a developing country like Bangladesh. Because of the increasing water development interventions in Bangladesh, brackish water ecosystems have become a great concern at the present time. Being located in the south-eastern coastal area of Bangladesh, the Bakkhali River faces such type of threat. Due to the rubber dam construction across the river, the brackish water zone has been cut-off by establishing a distinct fresh and saline water...