Effect of the Irrigation Canal Network on Surface and Groundwater Interactions in the Lower Valley of the Cachapoal River, Chile
Agricultural production of high value crops in Chile’s Central Valley is highly dependent on surface and groundwater resources. They are connected and together form an integrated hydrological system, the individual components of which have to be studied. This research is addressed to answe...
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| Lenguaje: | English |
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Instituto de Investigaciones Agropecuarias, INIA
2009
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oai:scielo:S0718-583920090001000022018-10-01Effect of the Irrigation Canal Network on Surface and Groundwater Interactions in the Lower Valley of the Cachapoal River, ChileArumí,José LuisRivera,DiegoHolzapfel,EduardoBoochs,PeterBillib,MaxFernald,Alexander agriculture Chile groundwater irrigation seepage MODFLOW surface water-groundwater interactions Agricultural production of high value crops in Chile’s Central Valley is highly dependent on surface and groundwater resources. They are connected and together form an integrated hydrological system, the individual components of which have to be studied. This research is addressed to answering two questions: 1) to what extent do irrigation and canal seepage contribute to groundwater recharge and 2) what is the influence of the interactions between the Cachapoal River and ground water. The study was carried out from 2003 to 2007 in Peumo Valley (34.3° S, 71.3° W). In winter, the irrigation canal network intercepts and diverts surface runoff, which flows to flat areas and recharges groundwater. In summer, infiltration from the canals recharges the aquifer directly and partially compensates for water uptake from plants and evaporation. The effects of both interactions keep groundwater at a relatively constant level over the whole year. The water balance of the valley is strongly affected by agricultural practices, groundwater recharge mainly originating from irrigation loss (22%) and canal seepage (52%). It is important to know how management decisions, such as change in irrigation practices or canal lining, can affect the hydrological system and agricultural production within the valley.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.69 n.1 20092009-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000100002en10.4067/S0718-58392009000100002 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
agriculture Chile groundwater irrigation seepage MODFLOW surface water-groundwater interactions |
| spellingShingle |
agriculture Chile groundwater irrigation seepage MODFLOW surface water-groundwater interactions Arumí,José Luis Rivera,Diego Holzapfel,Eduardo Boochs,Peter Billib,Max Fernald,Alexander Effect of the Irrigation Canal Network on Surface and Groundwater Interactions in the Lower Valley of the Cachapoal River, Chile |
| description |
Agricultural production of high value crops in Chile’s Central Valley is highly dependent on surface and groundwater resources. They are connected and together form an integrated hydrological system, the individual components of which have to be studied. This research is addressed to answering two questions: 1) to what extent do irrigation and canal seepage contribute to groundwater recharge and 2) what is the influence of the interactions between the Cachapoal River and ground water. The study was carried out from 2003 to 2007 in Peumo Valley (34.3° S, 71.3° W). In winter, the irrigation canal network intercepts and diverts surface runoff, which flows to flat areas and recharges groundwater. In summer, infiltration from the canals recharges the aquifer directly and partially compensates for water uptake from plants and evaporation. The effects of both interactions keep groundwater at a relatively constant level over the whole year. The water balance of the valley is strongly affected by agricultural practices, groundwater recharge mainly originating from irrigation loss (22%) and canal seepage (52%). It is important to know how management decisions, such as change in irrigation practices or canal lining, can affect the hydrological system and agricultural production within the valley. |
| author |
Arumí,José Luis Rivera,Diego Holzapfel,Eduardo Boochs,Peter Billib,Max Fernald,Alexander |
| author_facet |
Arumí,José Luis Rivera,Diego Holzapfel,Eduardo Boochs,Peter Billib,Max Fernald,Alexander |
| author_sort |
Arumí,José Luis |
| title |
Effect of the Irrigation Canal Network on Surface and Groundwater Interactions in the Lower Valley of the Cachapoal River, Chile |
| title_short |
Effect of the Irrigation Canal Network on Surface and Groundwater Interactions in the Lower Valley of the Cachapoal River, Chile |
| title_full |
Effect of the Irrigation Canal Network on Surface and Groundwater Interactions in the Lower Valley of the Cachapoal River, Chile |
| title_fullStr |
Effect of the Irrigation Canal Network on Surface and Groundwater Interactions in the Lower Valley of the Cachapoal River, Chile |
| title_full_unstemmed |
Effect of the Irrigation Canal Network on Surface and Groundwater Interactions in the Lower Valley of the Cachapoal River, Chile |
| title_sort |
effect of the irrigation canal network on surface and groundwater interactions in the lower valley of the cachapoal river, chile |
| publisher |
Instituto de Investigaciones Agropecuarias, INIA |
| publishDate |
2009 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000100002 |
| work_keys_str_mv |
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| _version_ |
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