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Soil and Water Conservation in Rainfed Vineyards with Common Sainfoin and Spontaneous Vegetation under Different Ground Conditions

AutorBen Salem, Nahed; Álvarez Martín, Sara ; López-Vicente, Manuel
Palabras claveCover crop
Spontaneous vegetation
Topsoil water content
Soil erosion
Runoff coefficient
Sediment trap
Temporal stability
Mediterranean region
Fecha de publicación9-ago-2018
EditorMultidisciplinary Digital Publishing Institute
CitaciónWater 10(8): 1058 (2018)
ResumenSoil erosion seriously affects vineyards. In this study, the influence of two vegetation covers on topsoil moisture and the effect of different physiographic conditions on runoff and sediment yields were evaluated in a rainfed vineyard formed by four fields (NE Spain) during 15 months. One field had spontaneous vegetation in the inter-row areas, and three fields had a cover crop of common sainfoin. Moisture conditions were dry and stable in the vineyards’ rows, wet and very variable in the inter-row areas and wet and very stable in the corridors. Topsoil moisture in the areas with common sainfoin was much higher than in the rows (62–70%), whereas this difference was lower with spontaneous vegetation (40%). Two runoff and sediment traps (STs) were installed in two ephemeral gullies, and 26 time-integrated surveys (TIS) were done. The mean runoff yields were 9.8 and 13.5 L TIS−1 in ST2 and ST3. Rainfall depth (12 mm) and erosivity (5.2 MJ mm ha−1 h−1) thresholds for runoff initiation were assessed. The mean turbidity was 333 (ST2) and 19 (ST3) g L−1. Changes in the canopy covers (grapevines and vegetation covers), topography and rainfall parameters explained the runoff and sediment dynamics.
DescripciónThis article belongs to the Special Issue Soil and Water Conservation in Agricultural and Forestry Systems.
Versión del editorhttp://doi.org/10.3390/w10081058
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