Search results for " Soil loss tolerance"

showing 3 items of 3 documents

Establishing a soil loss threshold for limiting rilling

2015

In this paper a frequency analysis of event soil loss measurements collected in the period 1999–2012 at the microplots and plots of the Sparacia Experimental Area in Sicily, southern Italy, was developed. The analysis was carried out using the annual maximum soil loss measurements normalized by the mean soil loss measured at a given temporal and spatial scale. The empirical frequency distribution of the normalized variable was well fitted by two Gumbel’s theoretical probability distributions discriminated by a value of the normalized variable equal to 2. This last value discriminates between the relatively low and frequent values of the normalized variable and the high and rare ones. The an…

HydrologySoil loss toleranceFrequency analysisScale (ratio)Soil erosion measurements Probability distributions Extreme events Soil loss tolerance RillingSoil scienceLimitinglaw.inventionSoil lossGumbel distributionlawSpatial ecologyEnvironmental ChemistryEnvironmental scienceProbability distributionSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-ForestaliGeneral Environmental ScienceWater Science and TechnologyCivil and Structural Engineering
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Establishing soil loss tolerance: an overview

2016

Soil loss tolerance is a criterion for establishing if a soil is potentially subjected to erosion risk, productivity loss and if a river presents downstream over-sedimentation or other off-site effects are present at basin scale. At first this paper reviews the concept of tolerable soil loss and summarises the available definitions and the knowledge on the recommended values and evaluating criteria. Then a threshold soil loss value, at the annual temporal scale, established for limiting riling was used for defining the classical soil loss tolerance. Finally, some research needs on tolerable soil loss are listed.

Soil erosion soil loss soil loss tolerance Universal Soil Loss Equation0208 environmental biotechnologyUniversal soil loss equationBioengineeringSoil science02 engineering and technologyAgricultural engineeringcomplex mixturesIndustrial and Manufacturing Engineeringlcsh:Agriculturesoil loss toleranceSoil lossSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-Forestalilcsh:Agriculture (General)Basin scaleSoil loSoil loss toleranceMechanical EngineeringScale (chemistry)lcsh:S04 agricultural and veterinary sciencesLimitingResearch needslcsh:S1-972020801 environmental engineeringuniversal soil loss equation.Universal Soil Loss EquationSoil erosion040103 agronomy & agricultureErosionsoil loss0401 agriculture forestry and fisheriesEnvironmental scienceJournal of Agricultural Engineering
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Effective Practices in Mitigating Soil Erosion from Fields

2017

Soil erosion by water is a natural process that cannot be avoided. Soil erosion depends on many factors, and a distinction should be made between humanly unchangeable (e.g., rainfall) and modifiable (e.g., length of the field) soil erosion factors. Soil erosion has both on-site and off-site effects. Soil conservation tries to combine modifiable factors so as to maintain erosion in an area of interest to an acceptable level. Strategies to control soil erosion have to be adapted to the desired land use. Knowledge of soil loss tolerance, T, i.e., the maximum admissible erosion from a given field, allows technicians or farmers to establish whether soil conservation practices need to be applied …

soil erosion soil loss tolerance on-site and off-site erosion impacts soil conservation burned areas erosion modeling for soil conservationSoil biodiversityAgroforestrycomplex mixturesSoil managementNo-till farmingEnvironmental protectionSoil functionsSoil retrogression and degradationEnvironmental scienceSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-ForestaliDryland salinitySoil conservationSurface runoff
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