Chapter 17 - Salt: an environmental stress

  • strict warning: Non-static method view::load() should not be called statically in /var/www/pia/drupal/sites/all/modules/views/views.module on line 906.
  • strict warning: Declaration of views_handler_argument::init() should be compatible with views_handler::init(&$view, $options) in /var/www/pia/drupal/sites/all/modules/views/handlers/views_handler_argument.inc on line 744.
  • strict warning: Declaration of views_handler_filter::options_validate() should be compatible with views_handler::options_validate($form, &$form_state) in /var/www/pia/drupal/sites/all/modules/views/handlers/views_handler_filter.inc on line 607.
  • strict warning: Declaration of views_handler_filter::options_submit() should be compatible with views_handler::options_submit($form, &$form_state) in /var/www/pia/drupal/sites/all/modules/views/handlers/views_handler_filter.inc on line 607.
  • strict warning: Declaration of views_handler_filter_boolean_operator::value_validate() should be compatible with views_handler_filter::value_validate($form, &$form_state) in /var/www/pia/drupal/sites/all/modules/views/handlers/views_handler_filter_boolean_operator.inc on line 159.
  • strict warning: Declaration of views_plugin_style_default::options() should be compatible with views_object::options() in /var/www/pia/drupal/sites/all/modules/views/plugins/views_plugin_style_default.inc on line 24.
  • strict warning: Declaration of views_plugin_row::options_validate() should be compatible with views_plugin::options_validate(&$form, &$form_state) in /var/www/pia/drupal/sites/all/modules/views/plugins/views_plugin_row.inc on line 134.
  • strict warning: Declaration of views_plugin_row::options_submit() should be compatible with views_plugin::options_submit(&$form, &$form_state) in /var/www/pia/drupal/sites/all/modules/views/plugins/views_plugin_row.inc on line 134.
  • strict warning: Only variables should be passed by reference in /var/www/pia/drupal/modules/book/book.module on line 559.
Printer-friendly version

figure

Secondary salinisation near Ouyen, Victoria, showing a lower slope discharge zone for saline ground-water. Established eucalypts have died, and salt is encroaching up-slope into grazing land. Local hydrologic balance was disturbed by land clearing which increased groundwater accession and led to a subsequent rise in water tables (Photograph courtesy P.E. Kreidemann)

Salinity, like drought, remains one of the world's oldest and most serious environmental problems. Mistakes made by the Sumerians in the Tigris and Euphrates basin of Mesopotamia over 4000 years ago are being repeated today...

(McWilliam 1986)

»