7 documents found, page 1 of 1
Modeling of soil organic carbon loss by water erosion on a tropical watershed
Lense,Guilherme Henrique Expedito; Moreira,Rodrigo Santos; Parreiras,Taya Cristo; Avanzi,Junior Cesar; Mincato,Ronaldo LuizABSTRACT Water erosion under tropical climate conditions is one of the main processes that change the balance between the inputs and outputs of soil organic carbon (SOC). Water erosion modeling using the Erosion Potential Method (EPM) can be used as an alternative to assist in understand soil carbon dynamics and its interaction with the erosive process. In this context, the objective of the study was to estimat...
Water erosion modeling by the Erosion Potential Method and the Revised Universa...
Lense,Guilherme Henrique Expedito; Moreira,Rodrigo Santos; Parreiras,Taya Cristo; Santana,Derielsen Brandão; Bolelli,Talyson de MeloAbstract Water erosion is the principal degradation process of tropical soils, and its effects can be measured by modeling techniques. Erosion models provide a diagnosis of the soil loss intensity and can support the planning of soil conservation practices. Models with low data requirements, such as the Revised Universal Soil Loss Equation (RUSLE) and, more recently, the Erosion Potential Method (EPM), are main...
SIMULATING THE EFFECT OF PERMANENT PRESERVATION AREAS ON SOIL EROSION RATES
Lense,Guilherme Henrique Expedito; Moreira,Rodrigo Santos; Parreiras,Taya Cristo; Silva,Luis Felipe Pigatto Miranda; Teodoro,Alexandre Elias de MirandaABSTRACT Water erosion is one of the main problems faced by the Furnas Lake Surrounding Watershed, located in southeast Brazil. The erosive process is intensified by inadequate land occupation of the lake margins where should be riparian forests, or permanent preservation areas (APP), in order to protect water resources. In this context, our work aimed to estimate the soil losses of this watershed using the Rev...
Nutritional status and physiological parameters of maize cultivated with sewage...
Moreira,Rodrigo Santos; Lense,Guilherme Henrique Expedito; Fávero,Leonardo Ferreira; Oliveira Junior,Benedito Majela de; Mincato,Ronaldo LuizABSTRACT The use of sewage sludge as a source of nutrients and organic matter for agricultural soils is a well-established practice. However, few reports highlight the effect of the nutrients and potentially toxic elements provided by organic wastes application on the plant physiological parameters, such as photosynthetic activity and stomatal conductivity. We performed a greenhouse experiment with maize expose...
Estimation of sediments produced in a subbasin using the Normalized Difference ...
Lense,Guilherme Henrique Expedito; Moreira,Rodrigo Santos; Bócoli,Fernanda Almeida; Avanzi,Junior Cesar; Teodoro,Alexandre Elias de MirandaABSTRACT Among the parameters considered by the Revised Universal Soil Loss Equation (RUSLE), the soil cover and management factor (C) is the main human influenced factor affecting the estimation of water erosion, and one of the most sensitive to spatiotemporal variations. Consequently, this study aims to compare the efficiency of C factor estimates obtained from the literature for each land-use class (Clit) an...
Estimates of soil losses by the erosion potential method in tropical latosols
Lense,Guilherme Henrique Expedito; Parreiras,Taya Cristo; Moreira,Rodrigo Santos; Avanzi,Junior Cesar; Mincato,Ronaldo LuizABSTRACT Water erosion is one of the main problems faced in coffee cultivation, as it promotes environmental degradation and crop yield decrease. Erosion estimates support the planning of conservation management practices and allowing determining the rates of soil losses. Thus, the objective of this paper was to estimate the soil loss by water erosion using the Erosion Potential Method in a sub-basin predominan...
Heavy metals availability and soil fertility after land application of sewage s...
Moreira,Rodrigo Santos; Mincato,Ronaldo Luiz; Santos,Breno RégisSewage sludge is the solid residue obtained from urban sewage treatment plants. It is possible to use the sludge in a sustainable way as fertilizer and as soil conditioner due to its high levels of organic matter and nutrients. Besides pathogens and volatile organic compounds, the residue may also contain heavy metals which may accumulate and contaminate crops and the food chain. The aim of this study was evalu...