Multitemporal analysis of estimated soil loss for the river Mourão watershed, Paraná - Brazil
| Autor: | Karina Querne de Carvalho, Eudes José Arantes, Fernando Hermes Passig, M. A. Piza, A. R. Kelniar, Carlos Henrique da Graça |
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| Rok vydání: | 2015 |
| Předmět: |
Geologic Sediments
Watershed Structural basin Biology river Mourão watershed Soil Rivers lcsh:Botany lcsh:Zoology USLE lcsh:QL1-991 lcsh:Science lcsh:QH301-705.5 Hydrology Land use perda de solo Models Theoretical SIG GIS lcsh:QK1-989 Universal Soil Loss Equation lcsh:Biology (General) bacia do rio Mourão – PR Soil water Erosion Geographic Information Systems soil loss lcsh:Q Seasons General Agricultural and Biological Sciences Hydrography Surface water Brazil Environmental Monitoring |
| Zdroj: | Brazilian Journal of Biology, Vol 75, Iss 4 suppl 2, Pp 120-130 Brazilian Journal of Biology v.75 n.4 suppl.2 2015 Brazilian Journal of Biology Instituto Internacional de Ecologia (IIE) instacron:IIE Brazilian Journal of Biology, Volume: 75, Issue: 4 Supplement 2, Pages: 120-130, Published: 27 NOV 2015 |
| ISSN: | 1678-4375 |
| Popis: | The multitemporal behavior of soil loss by surface water erosion in the hydrographic basin of the river Mourão in the center-western region of the Paraná state, Brazil, is analyzed. Forecast was based on the application of the Universal Soil Loss Equation (USLE) with the data integration and estimates within an Geography Information System (GIS) environment. Results had shown high mean annual rain erosivity (10,000 MJ.mm.ha–1.h–1.year–1), with great concentration in January and December. As a rule, soils have average erodibilities, exception of Dystroferric Red Latisol (low class) and Dystrophic Red Argisol (high class). Although the topographic factor was high (>20), rates lower than 1 were predominant. Main land uses comprise temporal crops and pasture throughout the years. The watershed showed a natural potential for low surface erosion. When related to usage types, yearly soil loss was also low (20), no entanto, predominaram os valores inferiores a 1. Os tipos de usos principais são as lavouras temporárias e pastagem, para todos os anos. A bacia apresentou Potencial Natural a Erosão laminar predominante baixo, quando relacionado aos tipos de usos resultou numa perda de solo anual estimada também baixa ( |
| Databáze: | OpenAIRE |
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