Potencial de uso por atributos morfométricos dos solos da bacia hidrográfica do alto rio Meia Ponte, Goiás

• Autor(a) principal: Calil, Pérola Morais
• Data de Publicação: 2009
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da UFG
• dARK ID: ark:/38995/0013000006w2t
• Texto Completo: http://repositorio.bc.ufg.br/tede/handle/tede/5213
• topic: Morfometria; Uso potencial dos solos; Coeficiente de rugosidade; Solos de Goiás; Orientador; Morphometry; Potential soil use; Roughness coefficient; Soils of Goiás.; AGRONOMIA::CIENCIA DO SOLO

Planning and environmental management are activities that aim to control and suitable land use for maximum agricultural yield purposes, through a powerful operating system, capable of sustaining human activities with a minimum of disturbances on physical, ecological and social processes. To ensure the rational use of natural resources, soil properties need to be taken in account, as well terrain steepness and water dynamics, since they inform about cropping intensity and agronomic practices to be applied to soils, in order to avoid exhaustion of productive capacity caused by erosion. This work aimed to assess morphometric attributes related to soil distribution over the landscape and suggest the land use potential, based on the roughness coefficient in the Alto Meia Ponte River basin (Goiás, Brazil). Among the studied variables, morphometric attributes, associated to roughness coefficient, proved to be a valuable tool for the definition of land use potentialities in the diagnosis phase. They are low cost procedures, providing suitable information about water dynamics and, or, hydrologic behavior, as well the ease of gathering information. The use of roughness coefficient resulted in initial indication of the watershed for livestock and reforestation. The intersection of roughness coefficient and soil surveys data, associated with average land slopes, allowed to discriminate more areas suited to farming activities and those more vulnerable to environmental degradation. The refinement of information enabled the increase in areas liable to agricultural use, provided that conservative and preventive measures of soil degradation are taken.