Application Of 1-D And 3-D Models In A Regional Context

نویسندگان

  • Z. Paydar
  • S. Khan
  • T. Rana
چکیده

Groundwater levels rose (an average of 10m) (mostly in 1970’s and 80’s) due to irrigation induced recharge to the groundwater in Coleambally Irrigation Area (CIA). Water table depth rise was a direct result of the net amount of recharge over and above the regional groundwater outflow capacity. Control of net recharge through a range of options is critical to the sustainability of CIA and requires both on-farm and regional management options for the groundwater discharge zones. There are two components to the management of recharge: The on-farm component, and the regional component. A regional groundwater model is used to look at overall targets of net recharge within the CIA. This model sets net recharge targets and is used to identify key processes and examine the effect of regional groundwater pumping on watertables and evaluate scenarios. The on-farm component captures the variability of soils, crops, and management at different parts of the region.

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تاریخ انتشار 2005