摘要：O solo possui um papel fundamental para a sociedade humana, desempenhando diversas funções no ecossistema, dentre as principais destaca-se a função filtro, retendo algumas substancias que nele são depositadas. Sendo assim, com aumento dos níveis de deposição de resíduos de forma inadequada, os níveis de contaminação estão cada vez maiores. Neste contexto o presente trabalho teve como objetivos caracterizar as propriedades físicas sob diferentes usos em uma bacia hidrográfica. Na Bacia Hidrográfica do Rio Vacacaí-Mirim, os pontos foram escolhidos aleatoriamente, onde foram coletadas as amostras e analisadas no equipamento EDXRF. Posteriormente, os valores foram especializadas com auxílio do Software Surfer 10. As variações das concentrações dos elementos analisados foram as seguintes: para o elemento Alumínio variaram de 52.952,11 a 271.077,00 mg kg -1 . Para o elemento Cálcio, os valores variaram do Limite de Detecção (L.D) a 7.677,376 mg kg -1 . As concentrações do elemento Ferro variou de 14.118,56 a 156.695,50 mg kg -1 . As concentrações de Ítrio variaram do L.D. a 192,36 mg kg -1 , os valores de Magnésio variaram do LD a 31.944,05 mg kg -1 os valores de Potássio de 1.256,236 a 60.693,230 mg kg -1 . Dentre os elementos analisados, apresentaram correlação os elementos químicos Ca e Al (-0,32), Ca e Al (0,03), K e Fe(-0,02), Mg e Fe (-0,27), Mg e K (-0,03) e Mg e Y(-0,02). Após análise dos dados é possível perceber que a concentração dos elementos é afetada devido ao uso e tipo de solo na Bacia Hidrográfica, sendo que isso é acentuado pela ação antrópica, principalmente nas áreas de pastagens e cultivos de arroz existentes na região. No presente estudo foi possível identificar que os usos de solo campo nativo, soja, pastagem, arroz e mata nativa tiveram uma maior influencia nas concentrações dos elementos alumínio, potássio e magnésio.
其他摘要：The soil has a fundamental role in human society, it plays diverse functions in the ecosystem, among the main functions is the filter function, it retains some substances that are deposited on the soil. Thus, with the increase levels of inadequade waste disposal, the contamination levels are increasing. In this context, the present study aimed to characterize the physical properties under different uses in a hydrographic basin. In the Vacacaí-Mirim River Basin, the points were chosen randomly, where the samples were collected and analyzed in EDXRF equipment. After, the values were specialized with the aid of Software Surfer 10. The variations of the concentrations of the elements analyzed were as follows: for the Element Aluminum varied of D.L. from 52.952,11 to 271.077,00 mg kg -1 . For the calcium element, values ranged from the detection limit (D.L.) to 7.677,376 mg kg -1 . The concentrations of iron elemente ranged of 14.118,56 to 156.695,50 mg kg -1 . The yttrium concentrations varied of D.L. to 192, 36 mg kg -1 , values of Magnesium varied of D.L. to 31.944,05 mg kg -1 , values the potassium ranged from 1.256,236 to 60.693,230 mg kg -1 . Among the elements analyzed, the following showed a correlation: Ca and Al (-0,32), Ca and Al (0,03), K and Fe (-0,02), Mg to Fe (-0,27), Mg and K (-0,03) and Mg and Y (-0,02). After the data analysis it was observed that the concentration of the elements is affected by use and soil type in the Hydrographic Basin, and this is accentuated by anthropic action, principally in areas of pastures and rice crops in the region. In the present study it was observed that the uses of soil, native field, soybeans, pasture, rice and native forest had a greater influence on the concentrations of the elements aluminum, potassium and magnesiumThe soil has a fundamental role in human society, it plays diverse functions in the ecosystem, among the main functions is the filter function, it retains some substances that are deposited on the soil. Thus, with the increase levels of inadequade waste disposal, the contamination levels are increasing. In this context, the present study aimed to characterize the physical properties under different uses in a hydrographic basin. In the Vacacaí-Mirim River Basin, the points were chosen randomly, where the samples were collected and analyzed in EDXRF equipment. After, the values were specialized with the aid of Software Surfer 10. The variations of the concentrations of the elements analyzed were as follows: for the Element Aluminum varied of D.L. from 52.952,11 to 271.077,00 mg kg -1 . For the calcium element, values ranged from the detection limit (D.L.) to 7.677,376 mg kg -1 . The concentrations of iron elemente ranged of 14.118,56 to 156.695,50 mg kg -1 . The yttrium concentrations varied of D.L. to 192, 36 mg kg -1 , values of Magnesium varied of D.L. to 31.944,05 mg kg -1 , values the potassium ranged from 1.256,236 to 60.693,230 mg kg -1 . Among the elements analyzed, the following showed a correlation: Ca and Al (-0,32), Ca and Al (0,03), K and Fe (-0,02), Mg to Fe (-0,27), Mg and K (-0,03) and Mg and Y (-0,02). After the data analysis it was observed that the concentration of the elements is affected by use and soil type in the Hydrographic Basin, and this is accentuated by anthropic action, principally in areas of pastures and rice crops in the region. In the present study it was observed that the uses of soil, native field, soybeans, pasture, rice and native forest had a greater influence on the concentrations of the elements aluminum, potassium and magnesium
关键词：Concentração; Elementos Químicos; Vacacaí-Mirim
其他关键词：Concentration; Chemical Elements; Vacacaí-Mirim
