Effect of the irrigation canal network on surface and groundwater interactions in the lower valley of the Cachapoal river, Chile [Efecto de la red de canales de riego en las interacciones de agua superficial y subterránea en la parte baja del valle del Río Cachapoal, Chile]

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dc.identifier.uri http://dx.doi.org/10.15488/1471
dc.identifier.uri http://www.repo.uni-hannover.de/handle/123456789/1496
dc.contributor.author Arumí, Jose Luis
dc.contributor.author Rivera, Diego
dc.contributor.author Holzapfel, Eduardo
dc.contributor.author Boochs, Peter
dc.contributor.author Billib, Max
dc.contributor.author Fernald, Alexander
dc.date.accessioned 2017-05-10T11:33:53Z
dc.date.available 2017-05-10T11:33:53Z
dc.date.issued 2009
dc.identifier.citation Arumí, J.L.; Rivera, D.; Holzapfel, E.; Boochs, P.; Billib, M. et al,: Effect of the irrigation canal network on surface and groundwater interactions in the lower valley of the Cachapoal river, Chile [Efecto de la red de canales de riego en las interacciones de agua superficial y subterránea en la parte baja del valle del Río Cachapoal, Chile]. In: Chilean Journal of Agricultural Research 69 (2009), Nr. 1, S. 12-20. DOI: https://doi.org/10.4067/S0718-58392009000100002
dc.description.abstract 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. eng
dc.description.sponsorship Chilean Government/FONDEF D02I-1146
dc.description.sponsorship BMBF/CONICYT
dc.language.iso spa
dc.publisher Chillan : Instituto de Investigaciones Agropecuarias
dc.relation.ispartofseries Chilean Journal of Agricultural Research 69 (2009), Nr. 1
dc.rights CC BY-NC 4.0
dc.rights.uri https://creativecommons.org/licenses/by-nc/4.0/deed.es
dc.subject Agriculture eng
dc.subject Chile eng
dc.subject Groundwater eng
dc.subject Irrigation seepage eng
dc.subject MODFLOW eng
dc.subject Surface water-groundwater interactions eng
dc.subject.ddc 630 | Landwirtschaft, Veterinärmedizin ger
dc.title Effect of the irrigation canal network on surface and groundwater interactions in the lower valley of the Cachapoal river, Chile [Efecto de la red de canales de riego en las interacciones de agua superficial y subterránea en la parte baja del valle del Río Cachapoal, Chile]
dc.type article
dc.type Text
dc.relation.essn 0718-5839
dc.relation.issn 0718-5820
dc.relation.doi https://doi.org/10.4067/S0718-58392009000100002
dc.bibliographicCitation.issue 1
dc.bibliographicCitation.volume 69
dc.bibliographicCitation.firstPage 12
dc.bibliographicCitation.lastPage 20
dc.description.version publishedVersion
tib.accessRights frei zug�nglich


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