Appropriate Well-canal Irrigation Proportion in Irrigation District Based on MODFLOW and GIS
Abstract：In order to rationally use surface water and groundwater resources,improve the ecological environ-ment of irrigation area and provide the basis for the realization of the most stringent water management,taking People's Victory Canal irrigation district as the research area,ArcGIS was used to analyze the People's Victory Ca-nal irrigation district groundwater utilization status,and MODFLOW model was used to establish a fully irrigated three dimensional flow numerical simulation model.Eight different programs were set up to simulate the water level of the programs running in five years,and analyze the trends in groundwater level.The results showed that irrigation district ground water level showed a downward trend,reducing groundwater extraction played a signifi-cant role in the groundwater level recovery.In flat water year,reducing 10%of the groundwater exploitation,the well-canal irrigation proportion was 1/0.78,of which upstream was 1/1.24,midstream was 1/0.85,the down-stream was 1/0.41,and the change well number from the original 20261 eyes to 14315 eyes could make the dy-namic groundwater balance.
Keywords：groundwater depththe well-canal irrigation proportionwells layoutmodelGIS
Publication Date：2017-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：6( 58-63 )