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Article

Effect of Land Use/Cover Change on the Hydrological Response of a Southern Center Basin of Chile

1
Environmental Sciences Center EULA-Chile, University of Concepción, 4070386 Concepción, Chile
2
Faculty of Environmental Science, Territorial Planning Department, University of Concepción, 4070386 Concepción, Chile
3
ECOLAB, Université de Toulouse, CNRS, INPT, UPS, 31326 Auzeville-Tolosane, France
4
Faculty of Forest Sciences, Landscape Ecology Laboratory, University of Concepción, Millennium Nucleus Center for the Socioeconomic Impact of Environmental Policies (CESIEP), 4070386 Concepción, Chile
*
Authors to whom correspondence should be addressed.
Water 2020, 12(1), 302; https://doi.org/10.3390/w12010302
Received: 8 November 2019 / Revised: 7 December 2019 / Accepted: 14 January 2020 / Published: 20 January 2020
Several impacts over ecosystem services have been produced by land use/cover changes, placing it as one of the main factors driving global environmental change. In the present study, the SWAT model was used to assess the effect of land use/cover changes on the hydrology response in the Andalien river basin from the south-central zone of Chile. Three land use/cover scenarios (LU_1986, LU_2001, and LU_2011) were compared over a period of 30 years (1984–2013) to remove the effect of climate variability on hydrology. The results show a significant decrease in total annual flows among the three LU scenarios. The greater differences in the annual flows of 25.05 m3/s were observed between LU_1986 and LU_2011 scenarios. The hydrological cycle dynamics in the basin show an increasing trend of evapotranspiration and surface flows with a significant decrease in percolation and lateral flow on a monthly and seasonal scale. This behavior can be explained by the increasing percentage of the basin area covered by exotic plantations, from 35.22% to 63.93% during the period. The evidence of these changes and the evaluation of their effects are particularly relevant for the long-term sustainable management of water resources. View Full-Text
Keywords: forest exotic; hydrology; land-use change; SWAT model forest exotic; hydrology; land-use change; SWAT model
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MDPI and ACS Style

Martínez-Retureta, R.; Aguayo, M.; Stehr, A.; Sauvage, S.; Echeverría, C.; Sánchez-Pérez, J.-M. Effect of Land Use/Cover Change on the Hydrological Response of a Southern Center Basin of Chile. Water 2020, 12, 302. https://doi.org/10.3390/w12010302

AMA Style

Martínez-Retureta R, Aguayo M, Stehr A, Sauvage S, Echeverría C, Sánchez-Pérez J-M. Effect of Land Use/Cover Change on the Hydrological Response of a Southern Center Basin of Chile. Water. 2020; 12(1):302. https://doi.org/10.3390/w12010302

Chicago/Turabian Style

Martínez-Retureta, Rebeca, Mauricio Aguayo, Alejandra Stehr, Sabine Sauvage, Cristian Echeverría, and José-Miguel Sánchez-Pérez. 2020. "Effect of Land Use/Cover Change on the Hydrological Response of a Southern Center Basin of Chile" Water 12, no. 1: 302. https://doi.org/10.3390/w12010302

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