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- Title
ANÁLISE ESPACIAL DO CUSTO DE REPOSIÇÃO DE NUTRIENTES DO SOLO EM UMA BACIA HIDROGRÁFICA.
- Authors
Silva, Darllan Collins da Cunha e.; Sales, Jomil Costa Abreu; Simonetti, Vanessa Cezar; Lourenço, Roberto Wagner
- Abstract
So that one may obtain the economic value of an environmental resource, its monetary value should be estimated in relation to other goods/services available in the economy. Environmental valorization methods currently used are relatively new and the variables in the process may not be known or partially known. One method is the Reposition Cost that calculates the value of reparation from a damage. Current paper applied the reposition cost method in the economic valorization of nutrient loss by soil erosion in the hydrographic basin of the river Una, Brazil, through geoprocessing to evaluate spatially the area under analysis. Thirty-five samples were collected and the soil´s nutrients quantified, Ca, Mg, P and K. Concentrations were spatialized and annual loss estimated, with reposition costs. In more than 89% of the studied area, the reposition cost of K, P, Ca and Mg of the three fertilizers employed (potassium chloride, potassium chlorate, simple superphosphate and lime) reached about R$ 0.01 per m². Total reposition cost was R$ 352,846.43. The spatialization of reposition costs showed which areas required special attention of the government with regard to monitoring and proposition of sustainability.
- Subjects
BRAZIL; WATERSHEDS; SOIL erosion; POTASSIUM chloride; SERVICE economy; FERTILIZERS; MAGNESIUM
- Publication
Revista em Agronegócio e Meio Ambiente, 2020, Vol 13, Issue 1, p189
- ISSN
1981-9951
- Publication type
Article
- DOI
10.17765/2176-9168.2020v13n1p189-212