Mirza MMQ
International Global Change Institute (IGCI), University of Waikato, Private Bag 3105, Hamilton, New Zealand
Environ Manage. 1998 Sep;22(5):711-22. doi: 10.1007/s002679900141.
/ The Ganges River supplies water to the southwest region of Bangladesh mainly through one of its distributaries-the Gorai River. India commissioned a barrage on the Ganges River at Farakka in April 1975 to divert water and make the Bhagirathi-Hooghly River navigable. The diversion has reduced the dry season discharge of the Ganges and Gorai rivers in Bangladesh. Statistical analyses indicate that the changes in the dry season discharge of these rivers are significant. Reduced discharge in the Gorai River has induced accelerated sedimentation and increased salinity in the southwest region of Bangladesh. Empirical analyses demonstrate the relationship between discharge in the Gorai River and salinity. Analyses also determine the requirement of flow for the Ganges and Gorai rivers to keep salinity at threshold limits. Increased salinity has caused negative effects on agriculture, forestry, industry, and drinking water in the southwest region of Bangladesh.KEY WORDS: Bangladesh; Ganges River; Gorai River; Farakka diversion; Salinity
恒河主要通过其一条分流戈拉伊河向孟加拉国的西南地区供水。1975年4月，印度在恒河上的法拉卡建造了一座水坝，用于引水，以使布吉拉蒂-胡格利河具备通航能力。这一分流减少了孟加拉国境内恒河和戈拉伊河的旱季流量。统计分析表明，这些河流旱季流量的变化十分显著。戈拉伊河流量的减少导致孟加拉国西南地区泥沙淤积加速，盐度上升。实证分析证明了戈拉伊河流量与盐度之间的关系。分析还确定了恒河和戈拉伊河将盐度维持在阈值范围内所需的流量。盐度上升已对孟加拉国西南地区的农业、林业、工业和饮用水产生了负面影响。关键词：孟加拉国；恒河；戈拉伊河；法拉卡分流；盐度
