The Social and Environmental Effects of Large Dams, Volume 2 |
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Page 63
... EVAPORATION In arid and semiarid countries , the loss of water to evaporation is - as Mohammed Kassas is quick to tell us - inevitable . ' That loss can be considerable . In Guyana , for example , evaporation losses from open surfaces ...
... EVAPORATION In arid and semiarid countries , the loss of water to evaporation is - as Mohammed Kassas is quick to tell us - inevitable . ' That loss can be considerable . In Guyana , for example , evaporation losses from open surfaces ...
Page 154
... evaporation rates , even good - quality water can be used only twice before it becomes too brackish for agriculture . Disposing of that brackish water is proving increasingly diffi- cult . One method is to divert excess water into ...
... evaporation rates , even good - quality water can be used only twice before it becomes too brackish for agriculture . Disposing of that brackish water is proving increasingly diffi- cult . One method is to divert excess water into ...
Page 247
... evaporation and seepage losses at Aswan would be far greater than predicted and would in effect cancel out any gains from storing such a large volume of water . He calculated that high winds at the reservoir site could increase annual ...
... evaporation and seepage losses at Aswan would be far greater than predicted and would in effect cancel out any gains from storing such a large volume of water . He calculated that high winds at the reservoir site could increase annual ...
Contents
INTRODUCTION | 1 |
The Problems of Resettlement | 17 |
Management and MaintenancePerennial Problems | 163 |
Copyright | |
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acre-feet acres agricultural land Akawaio Arid Land Aswan Aswan Dam Aswan High Dam Barton Worthington benefits billion m³ Biswas Brazil Bruce Stokes building built canal Carl Widstrand caused Chagga construction cost crops cultivation cultural damage deforestation Developing Countries disease drainage earthquakes ecological economic Edward Goldsmith effects Egypt Environment Environmental estimated evaporation farmers farming feddans fertile fish flood control forest Goodland groundwater hectares High Dam hydroelectric Ibid increase India industrial inevitable irrigated land irrigation irrigation agriculture irrigation schemes irrigation system John Waterbury large dams large-scale water loss malaria ment meters million hectares Nile peasants percent perennial irrigation plans plants points pollution problem production qanats region reservoir resettlement result Rothé salinization salt schistosomiasis sedimentation seepage seismic silt social soil Sonjo Sri Lanka supply tanks Third World tion traditional irrigation Tucuruí Valley village water development schemes water projects waterlogging wildlife World Bank