The Social and Environmental Effects of Large Dams, Volume 2 |
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Page 67
... irrigation systems . 18 The second best method for avoiding losses from seepage is to line irrigation canals . The most efficient - and ... Perennial Irrigation on Pest Populations 67 The Effects of Perennial Irrigation on Pest Populations.
... irrigation systems . 18 The second best method for avoiding losses from seepage is to line irrigation canals . The most efficient - and ... Perennial Irrigation on Pest Populations 67 The Effects of Perennial Irrigation on Pest Populations.
Page 69
... perennial — and , in particular , sprinkler - irrigation in Israel caused , as Rivnay points out , " invasions and an increase in many pests of agricul- tural importance " that has led to " the ... Perennial Irrigation on Pest Populations 69.
... perennial — and , in particular , sprinkler - irrigation in Israel caused , as Rivnay points out , " invasions and an increase in many pests of agricul- tural importance " that has led to " the ... Perennial Irrigation on Pest Populations 69.
Page 319
... PERENNIAL IRRIGATION Even the small - scale irrigation schemes built today aim at replac- ing seasonal irrigation with perennial irrigation . The latter , however , invariably entails higher social and ecological costs— whatever the ...
... PERENNIAL IRRIGATION Even the small - scale irrigation schemes built today aim at replac- ing seasonal irrigation with perennial irrigation . The latter , however , invariably entails higher social and ecological costs— whatever the ...
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