Are climatic or land cover changes the dominant cause of runoff trends in the Upper Mississippi River Basin?

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dc.contributor.author Frans, Chris
dc.contributor.author Istanbulluoglu, Erkan
dc.contributor.author Mishra, Vimal
dc.contributor.author Munoz-Arriola, Francisco
dc.contributor.author Lettenmaier, Dennis P.
dc.date.accessioned 2014-03-17T08:32:57Z
dc.date.available 2014-03-17T08:32:57Z
dc.date.issued 2013-03
dc.identifier.citation Frans, Chris; Istanbulluoglu, Erkan; Mishra, Vimal; Munoz-Arriola, Francisco and Lettenmaier, Dennis P., “Are climatic or land cover changes the dominant cause of runoff trends in the Upper Mississippi River Basin?”, Geophysical Research Letters. DOI: 10.1002/grl.50262, vol. 40, no. 6, pp. 1104-1110, Mar. 2013. en_US
dc.identifier.issn 0094-8276
dc.identifier.uri http://dx.doi.org/10.1002/grl.50262
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/834
dc.description.abstract [1] The Upper Mississippi River Basin (UMRB) has experienced a remarkable agricultural extensification since the mid-1800s. Hydroclimatological monitoring in the 20th century also reveals positive annual precipitation and runoff trends in the UMRB. While several studies have proposed land use/land cover (LULC) change as the primary cause of runoff increase, little is known about the dominant controls of hydrologic change in the UMRB. We used a macroscale hydrology model to assess the hydrologic implications of climate and LULC changes between 1918 and 2007. Modeling results, corroborated with hydroclimatologic data analysis, emphasized climate change as the dominant driver of runoff change in the UMRB. At local scales, modeled annual runoff decreased (increased) by up to 9% (5%) where grasslands (forests) were replaced by croplands. Artificial field drainage amplified annual runoff by as much as 13%. These findings are critical for water and nitrogen management in the UMRB under change. en_US
dc.description.statementofresponsibility by Vimal Mishra et al.,
dc.format.extent vol. 40, no. 6, pp. 1104-1110
dc.language.iso en en_US
dc.publisher Wiley en_US
dc.subject Climate en_US
dc.subject LULC en_US
dc.subject Streamflow en_US
dc.title Are climatic or land cover changes the dominant cause of runoff trends in the Upper Mississippi River Basin? en_US
dc.type Article en_US
dc.relation.journal Geophysical Research Letters


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