35 documents found, page 1 of 4

Rainfall erosivity estimation: Comparison and statistical assessment among meth...

Texto completo; Rainfall erosivity (R factor) is one of the six factors of the Universal Soil Loss Equation, being calculated based on the product of rainfall kinetic energy multiplied by its 30-minute maximum intensity. However, the lack of detailed and reliable rainfall data in many parts of the world has driven the use of other methods to estimate rainfall erosivity based on daily, monthly or annual data. Th...

Hydrosedimentological modeling in a headwater basin in Southeast Brazil

Hydrosedimentological modeling is a useful tool to predict the water dynamic in a basin and for water resources management. This study aimed to i) evaluate the ability of Soil and Water Assessment Tool (SWAT) to model sediment load and continuous monthly streamflow in the Mortes River Basin (MRB) in Southeastern Brazil; ii) estimate the sediment yield spatially distributed by sub-basins; iii) estimate the sedim...

Combining multiple methods for automated soil delineation: from traditional to ...

Monitoring land use impacts on sediment production: a case study of the pilot c...

Through the lack or non-use of conservationist criteria for adequate land use and management, the scarcity of natural resources becomes ever more evident. This study aimed to analyze the origin of the sediments in the Posses catchment, municipality of Extrema, state of Minas Gerais, Brazil, throughout the fingerprinting technique and portable X-ray fluorescence. Samples from soils under agriculture, pasture, an...

Deep tillage strategies in perennial crop installation: structural changes in c...

Tillage modifies soil structure, which can be demonstrated by changes in the soil’s physical properties, such as penetration resistance (PR) and soil electrical resistivity (ρ). The aim of this study was to evaluate the effect of deep tillage strategies on three morphogenetically contrasting soil classes in the establishment of perennial crops regarding geophysical and physical-hydric properties. The experiment...

A sensors-based profile heterogeneity index for soil characterization

Preconsolidation stress of gibbsitic and kaolinitic Oxisols under a multipracti...

Made available in DSpace on 2021-06-25T10:26:42Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01; Our goal was to analyze the impact of a multipractice soil conservationist system on coffee production in tropical soils (LATOSSOLO VERMELHO-AMARELO caulinítico/kaolinitic Haplustox and LATOSSOLO VERMELHO-gibbsítico/gibbsitic Acrustox) in Minas Gerais, Brazil. In the experimental area, the soil manageme...

Soil texture prediction using portable X-ray fluorescence spectrometry and visi...

Soil subgroup prediction via portable X-ray fluorescence and visible near-infra...

Effects of phosphate, carbonate, and silicate anions on CO2 emission in a typic...

The effects of agricultural practices on greenhouse gases emissions (e.g. CO2) at the soil-atmosphere interface have been highlighted worldwide. The use of ground limestone has been considered as the main responsible for CO2 emission from soils. However, liming is need as conditioner of acidic soils and the CO2 emission can be compensated due to carbon sequestration by plants. This study simulated under laborat...