Identifying Climatic Change Adaptations of Crops in Orinoco Basin Oxisols Through Study of Soil Water Availability

• Autorzy: Gallo Oscar Javier , Loaiza-Úsuga Juan Carlos , Rodríguez Betty Jazmín Gutiérrez , Quiñones Andres Javier Peña , Riobo Jaime Humberto Bernal

Identyfikatory

DOI

10.12911/22998993/183553

• Języki publikacji: EN

Abstrakty

EN

Crop yield variations in the Orinoquía region – Colombia, are primarily associated with extreme precipitation events. Therefore, studying crop water supplies under naturally variable climate conditions is fundamental in an actual climatic change context. Rainfall data collected in the Quenane sub-basin were analyzed to understand the soil water dynamics in the Orinoco catchment. The basin covers 179 km² and consists of the piedmont landscape (Eastern Mountain Range) of the Villavicencio Municipality, Department of Meta. This study analyzes the rainfall variability using Pearson correlation analysis, the Mann-Kendall trend analysis, and soil water balance to determine the implications of these factors in crop performance at the basin scale. The results indicated that the spatial distribution of rainfall in the basin responds to a longitudinal average variation of precipitation and that this response is more accentuated (i.e., greater rainfall) toward the west of the basin. Despite the basin being located in the tropical zone, no evidence was found regarding the effect of the El Niño Southern Oscillation on rainfall patterns. Yet, the temporal analysis revealed some years with extreme rainfall values and high-uncertainty levels during transitions between wet and dry periods. During these transition periods, a greater potential for effects on farm yields exists due to the variable cumulative rainfall observed during recent years. The time series trend analysis revealed changes in rainfall patterns at different scales (weekly and yearly) and distribution based on the decrease of rainy days per week and year. This trend is much more accentuated during the second half of the year, generating uncertainty and reducing farm yields throughout the basin.

Słowa kluczowe

EN

soil moisture; savanna; water balance; climatic change; tropic environment

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2024
• Tom: Vol. 25, nr 5
• Strony: 114--133
• Opis fizyczny: Bibliogr. 82 poz., rys., tab.

Twórcy

autor

Gallo Oscar Javier

• Network of Annual and Agro-Industrial Crops, Corporación Colombiana de Investigación Agropecuaria (AGROSAVIA), La Libertad, Villavicencio, Meta, Colombia

• https://orcid.org/0000-0001-5748-4876

autor

Loaiza-Úsuga Juan Carlos

• Departamento de Geociencias y Medioambiente, Sede Medellín, Facultad de Minas, Universidad Nacional de Colombia, Carrera 80 No 65-223, Bloque M2. Office 312, Campus Robledo, 050036, Medellín, Colombia

• https://orcid.org/0000-0002-3821-7518

autor

Rodríguez Betty Jazmín Gutiérrez

• Intelligence Analyst and Scientific and Technological Dissemination, Corporación Colombiana de Investigación Agropecuaria (AGROSAVIA), Bogotá DC, Colombia

• https://orcid.org/0000-0002-3759-4717

autor

Quiñones Andres Javier Peña

• Network of Annual and Agro-Industrial Crops, Corporación Colombiana de Investigación Agropecuaria (AGROSAVIA), La Libertad, Villavicencio, Meta, Colombia

• https://orcid.org/0000-0003-3564-401X

autor

Riobo Jaime Humberto Bernal

• Network of Annual and Agro-Industrial Crops, Corporación Colombiana de Investigación Agropecuaria (AGROSAVIA), La Libertad, Villavicencio, Meta, Colombia

• https://orcid.org/0000-0002-8738-1365

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