Characteristics and importance of rill and gully erosion: a case study in a small catchment of a marginal olive grove

E.V. Taguas, E. Guzmán, G. Guzmán, T. Vanwalleghem, J.A. Gómez


Measurements of gullies and rills were carried out in an olive orchard microcatchment of 6.1 ha over a 4-year period (2010-2013). No tillage management allowing the development of a spontaneous grass cover was implemented in the study period. Rainfall, runoff and sediment load were measured at the catchment outlet. The objectives of this study were: 1) to quantify erosion by concentrated flow in the catchment by analysis of the geometric and geomorphologic changes of the gullies and rills between July 2010 and July 2013; 2) to evaluate the relative percentage of erosion derived from concentrated runoff to total sediment yield; 3) to explain the dynamics of gully and rill formation based on the hydrological patterns observed during the study period; and 4) to improve the management strategies in the olive grove. Control sections in gullies were established in order to get periodic measurements of width, depth and shape in each campaign. This allowed volume changes in the concentrated flow network to be evaluated over 3 periods (period 1 = 2010-2011; period 2 = 2011-2012; and period 3 = 2012-2013). The cumulative precipitation values were 610 mm, 219 mm and 406 mm for period 1, 2 and 3, respectively, whereas the sediment ratios of rill erosion to total sediment yield were 44% and 118%, respectively, with a negative value (as a result of the volume reduction of rills and gullies) in period 3 when the total load was equal to 0.4 t ha-1. The increased development of the gully network was associated to intense events with a return period of the maximum intensity in 30 minutes greater than 2 years. A high dependency on the sequence of events according to their intensity values could explain the sedimentary budget in the catchment. Most of the events generating runoff in the catchment could contribute to interrill and rill erosion, but only very intense events would allow the runoff to transport sediment to the outlet. In addition to the grass cover, control measures in the gullies would substantially improve the sustainability of  the farm. These gullies are important sediment sources, particularly in autumn when there is no vegetation cover and intense rainfall events occur.


concentrated runoff, rills, ephemeral gullies, total sediment load,olive crop.

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Aguilera, L., Taguas, E.V., Gimeno, E., Gómez, J.A. 2013. Spatial and temporal variability of grass cover in two olive grove catchments on contrasting soil types. Geophysical Research Abstracts Vol. 15, EGU2013-6364.

Brown, C.B. 1960. Effects of land use and treatment on pollution. In National Conference on Water Pollution, Washington, DC, pp. 209-218.

Cammeraat, E.L.H. 2004. Scale dependent thresholds in hydrological and erosion response of semi-arid catchment in southeast Spain. Agriculture, Ecosystems and Environment 104, 333-342.

Casalí, J., López, J.J, Giráldez, J.V. 1999. Ephemeral gully erosion in southern Navarra (Spain). Catena 36, 65-84.

Castillo C. 2012. Metodología de medida de erosión por cárcavas y modelado de su control mediante diques de retención. Tesis Doctoral. University of Córdoba, Córdoba (Spain), 266 pp.

Castillo, C., Taguas, E.V., Mora-Jordano, J., Gómez, J.A. 2013. Cost analysis of gully restoration in agricultural areas in Andalusia (Spain). European Geosciences Union. Geophysical Research Abstracts Vol. 15, EGU2013-6339.

De Santisteban, L.M., Casalí, J., López, J.J. 2006. Assessing soil erosion rates in cultivated areas of Navarre (Spain). Earth Surface Processes and Landforms 31, 487-506.

Domínguez-Romero, L, Ayuso, J.L., García-Marín, A. 2007. Annual distribution of rainfall erosivity in western Andalusia (southern Spain). Journal of Soil and Water Conservation 62 (6), 390-403.

Ferro, V., Minacapilli, M. 1995. Sediment delivery processes at basin scale. Hydrological Sciences Journal 40, 703-718.

Francia, A., Durán, V., Martínez, A. 2006. Environmental impact from mountainous olive orchards under different soil-management systems (SE Spain). Science of the Total Environment 358, 46-60.

Gómez, J.A., Romero, P., Giráldez, J.V., Fereres, E. 2004. Experimental assessment of runoff and soil erosion in an olive grove on a vertic soil in southern Spain as affected by soil management. Soil Use and Management 20, 426-431.

Gómez, J.A., Taguas, E.V., Vanwalleghem, T., Giráldez, J.V., Sánchez, F., Ayuso, J.L., Lora, A., Mora, J. 2011. Criterios técnicos para el control de las cárcavas, diseño de muros de retención y revegetación de paisajes agrarios. Manual del operador en inversiones no productivas. Junta de Andalucía, Consejería de Agricultura y Pesca, 58 pp.

Gómez, J.A., Infante-Amate, J., González de Molina, M., Vanwalleghem, T., Taguas, E.V., Lorite, I., 2014a. Olive Cultivation, its Impact on Soil Erosion and its Progression into Yield Impacts in Southern Spain in the Past as a Key to a Future of Increasing Climate Uncertainty. Agriculture 4, 170-198.

Gómez, J.A., Vanwalleghem, T., De Hoces, A., Taguas, E.V. 2014b. Hydrological and erosive response of a small catchment under olivec ultivation in a vertic soil during a five-year period: Implications for sustainability. Agriculture, Ecosystems and Environment 188, 229-244.

Guzmán, G., Vanderlinden, K., Giráldez, J.V., Gómez, J.A. 2013. Assessment of spatial variability of water erosion rates in an olive orchard at plot scale using a magnetic iron oxide tracer. Soil Science Society of America Journal 77, 350-361.

Lane, L.J., Hernandez, M., Nichols, M. 1997. Processes controlling sediment yield from watersheds as functions of spatial scale. Environmental Modelling & Software 12, 355-369.

Lu, H., Moran, C.J., Prosser, I.P. 2006. Modelling sediment delivery ratio over the Murray-Darling Basin. Environmental Modelling and Software 21, 1297-1308.

Luk, S., Abrahams, A.D., Parsons, A.J. 1993. Sediment Sources and Sediment Transport by Rill Flow and Interrill Flow on a Semi-arid Piedmont Slope, Southern Arizona. Catena 20, 93-111.

Nunes, J.P., Seixas, J., Keizer, J.J., Ferreira, A.J.D. 2009. Sensitivity of runoff and soil erosion to climate change in two Mediterranean watersheds. Part I: model parameterization and evaluation. Hydrological Processes 23, 1202-1211.

Pastor, M., Castro, J., Vega, V., Humanes, M.D. 2001. Sistemas de manejo del suelo. In El cultivo del olivo, D. Barranco, R. Fernandez-Escobar, L. Rallo, L. (eds.). Mundi Prensa, Madrid, pp. 198-228.

Poesen, J. 1993. Gully typology and gully control measures in the European loess belt. In Farm Land Erosion in Temperate Plains Environment and Hills, S. Wicherek (ed.). Elsevier, Amsterdam, pp. 221-239.

Poesen, J., Vanwalleghem, T., Gyssels, G., Nachtergaele, J., Verstraeten, G., de Vente, J., 2006. Gully erosion in Europe. In Soil Erosion in Europe, J. Boardman, J. Poesen, J. (eds.), Wiley, pp. 515-536.

Raclot, D., Le Bissonnais, Y., Louchart, X., Andrieux, P., Moussa, R., Voltz, M. 2009. Soil tillage and scale effects on erosion from fields to catchment in a Mediterranean vineyard area. Agriculture, Ecosystems and Environment, 134 201-210.

Ramos, M.I., Feito, F.R., Gil, A.J., Cubillas, J.J. 2008. A study of spatial variability of soil loss with high resolution DEMs: A case study of a sloping olive grove in southern Spain. Geoderma 148, 1-12.

Reaney, S.M., Bracken, L.J., Kirkby, M.J. 2007. Use of the Connectivity of Runoff Model (CRUM) to investigate the influence of storm characteristics on runoff generation and connectivity in semi-arid areas. Hydrological Processes 21, 894-906.

Renschler, C.S., C. Mannaerts, and B. Diekkruger. 1999. Evaluating spatial and temporal variability in soil erosion risk-rainfall erosivity and soil loss ratios in Andalucia, Spain. Catena 34, 209-225.

Spanish Ministery of Environment – MAGRAMA 2005. Principales Conclusiones de la Evaluación Preliminar de los Impactos en España por Efecto del Cambio Climático. Centro de Publicaciones, Secretaría General Técnica Ministerio de Medio Ambiente, Madrid.

Taguas, E.V. 2007. Evaluación de la pérdida de suelo en olivar a escala de microcuenca bajo distintos manejos de suelo. PhD Thesis, University of Cordoba, Cordoba.

Taguas, E.V., Ayuso, J.L., Peña, A., Yuan, Y., Pérez, R. 2009. Evaluating and modeling the hydrological and erosive behaviour of an olive orchard microcatchment under no-tillage with bare soil in Spain. Earth Surface Processes and Landforms 34, 738-751.

Taguas, E.V., Peña, A., Ayuso, J.L., Pérez, R., Yuan, Y., Giráldez, J.V. 2010. Rainfall variability and hydrological and erosive response of an olive tree microcatchment under no-tillage with a spontaneous grass cover in Spain. Earth Surface Processes and Landforms 35, 750-760.

Taguas, E.V., Giráldez, J.V., Ayuso, J.L., Pérez, R., Castillo, C., Gómez J.A. 2011a. Preliminary assessment and cost analysis of incentives for gully control in agricultural areas of Andalusia (Southern Spain). European Geosciences Union. Geophysical Research Abstracts Vol. 13, EGU2011-4693.

Taguas, E.V., Moral, C., Ayuso, J.L., Pérez, R., Gómez, J.A. 2011b. Modeling the spatial distribution of water erosion within a Spanish olive orchard microcatchment using the SEDD model. Geomorphology 133, 47-56.

Taguas, E.V., Ayuso, J.L., Pérez, R., Giráldez, J.V., Gómez, J.A. 2013. Intra and inter-annual variability of runoff and sediment yield of an olive micro-catchment with soil protection by natural ground cover in Southern Spain. Geoderma 206, 49-62.

USDA-SCS. 1983. National Engineering Handbook: Section 3, Sedimentation. U.S.D.A.-SCS. Washington, pp. 3-1-3-17.

Walling, D.E. 1983. The sediment delivery problem. Journal of Hydrology 65, 209-237.


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