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Agriculture 2017, 7(7), 52;

Impact of Potentially Contaminated River Water on Agricultural Irrigated Soils in an Equatorial Climate

Instituto de Ciencias Ambientales de la Orinoquia Colombiana ICAOC, Facultad de Ciencias Básicas e Ingeniería, Universidad de los Llanos, Campus Barcelona Villavicencio, 500001 Villavicencio, Colombia
Department of Natural Sciences, Dickinson State University, Dickinson, ND 58601, USA
Soil Physics and Land Management Group, Wageningen University, Droevendaalsesteeg 4, 6708PB Wageningen, The Netherlands
Department of Geology and Geochemistry, Universidad Autónoma, 28049 Madrid, Spain
Author to whom correspondence should be addressed.
Academic Editors: Rabin Bhattarai and Paul Davidson
Received: 6 April 2017 / Revised: 10 June 2017 / Accepted: 21 June 2017 / Published: 24 June 2017
(This article belongs to the Special Issue Water Quality for Agriculture)
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Globally, it is estimated that 20 million hectares of arable land are irrigated with water that contains residual contributions from domestic liquids. This potentially poses risks to public health and ecosystems, especially due to heavy metals, which are considered dangerous because of their potential toxicity and persistence in the environment. The Villavicencio region (Colombia) is an equatorial area where rainfall (near 3000 mm/year) and temperature (average 25.6 °C) are high. Soil processes in tropical conditions are fast and react quickly to changing conditions. Soil properties from agricultural fields irrigated with river water polluted by a variety of sources were analysed and compared to non-irrigated control soils. In this study, no physico-chemical alterations were found that gave evidence of a change due to the constant use of river water that contained wastes. This fact may be associated with the climatic factors (temperature and precipitation), which contribute to fast degradation of organic matter and nutrient and contaminants (such as heavy metals) leaching, or to dilution of wastes by the river. View Full-Text
Keywords: trace elements; equatorial area; agricultural land use; wastewater irrigation trace elements; equatorial area; agricultural land use; wastewater irrigation

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Trujillo-González, J.M.; Mahecha-Pulido, J.D.; Torres-Mora, M.A.; Brevik, E.C.; Keesstra, S.D.; Jiménez-Ballesta, R. Impact of Potentially Contaminated River Water on Agricultural Irrigated Soils in an Equatorial Climate. Agriculture 2017, 7, 52.

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