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RESEARCH PRODUCT
Rainfall simulation and Structure-from-Motion photogrammetry for the analysis of soil water erosion in Mediterranean vineyards
Artemi CerdàArtemi CerdàSimone Di PrimaJesús Rodrigo-cominoMassimo ProsdocimiPaolo TarolliGiulia SofiaMaría BurguetEnric Terolsubject
Mediterranean climateEnvironmental Engineering010504 meteorology & atmospheric sciencesSòls ErosióSoil science01 natural sciencesMediterranean vineyards; Rainfall simulation; Sediment connectivity; Soil water erosion; Structure from motion; Environmental Engineering; Environmental Chemistry; Medicine (all); Waste Management and Disposal; PollutionEnvironmental ChemistryDigital elevation modelWaste Management and Disposal0105 earth and related environmental sciencesSediment connectivity2. Zero hungerHydrologyLand useMedicine (all)Mediterranean vineyardsStructure from motionElevationSediment04 agricultural and veterinary sciences15. Life on landBodemfysica en LandbeheerPollutionSoil Physics and Land ManagementPhotogrammetrySoil waterINGENIERIA CARTOGRAFICA GEODESIA Y FOTOGRAMETRIA040103 agronomy & agricultureErosionRainfall simulation0401 agriculture forestry and fisheriesEnvironmental scienceSoil water erosiondescription
[EN] Soil water erosion is a serious problem, especially in agricultural lands.Among these, vineyards deserve attention, because they constitute for the Mediterranean areas a type of land use affected by high soil losses. A significant problem related to the study of soil water erosion in these areas consists in the lack of a standardized procedure of collecting data and reporting results, mainly due to a variability among the measurement methods applied. Given this issue and the seriousness of soil water erosion in Mediterranean vineyards, this works aims to quantify the soil losses caused by simulated rainstorms, and compare them with each other depending on two different methodologies: (i) rainfall simulation and (ii) surface elevation change-based, relying on high-resolution Digital Elevation Models (DEMs) derived from a photogrammetric technique (Structure-from-Motion or SfM). The experiments were carried out in a typical Mediterranean vineyard, located in eastern Spain, at very fine scales. SfM data were obtained from one reflex camera and a smartphone built-in camera. An index of sediment connectivity was also applied to evaluate the potential effect of connectivity within the plots. DEMs derived from the smartphone and the reflex camera were comparable with each other in terms of accuracy and capability of estimating soil loss. Furthermore, soil loss estimated with the surface elevation change-based method resulted to be of the same order of magnitude of that one obtained with rainfall simulation, as long as the sediment connectivity within the plot was considered. High-resolution topography derived from SfUrevealed to be essential in the sediment connectivity analysis and, therefore, in the estimation of eroded materials, when comparing them to those derived from the rainfall simulation methodology. The fact that smartphones built-in cameras could produce as much satisfying results as those derived from reflex cameras is a high value added for using SfM. (C) 2016 Elsevier B.V. All rights reserved.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-06-20 |