Groundwater resources in the State of São Paulo (Brazil): the application of indicators
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| Format: | Artículo científico |
| Language: | en |
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Academia Brasileira de Ciências
2007
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| _version_ | 1876484824977375232 |
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| author | Ricardo Hirata |
| author_facet | Ricardo Hirata |
| contents | Groundwater resources in the State of São Paulo (Brazil): the application of indicators Ricardo Hirata Alexandra Suhogusoff Amélia Fernandes Multidisciplinaria (Ciencias Naturales y Exactas) São Paulo management indicators groundwater public water supply Indicators, for groundwater resources, have mostly been employed to define the present status and the degradationtendency, regarding both quantity (under- or overexploitation) and quality (natural and anthropic contamination). Thiswork presents the application of indicators in order to draw a picture of the groundwater resources situation in the 22Water Resource Management Units (WRMU) of the State of São Paulo. The seven Indicators (I1 to I7) applied providea general overview of groundwater dependence (I1, I2), availability (I3, I4), and quality (I5, I6, I7). Considering publicsupply (Indicator 1), one observes that 9 WRMUs show high (>50% of the population supplied by groundwater), 6,intermediate (49-25%), and 7, low (<24%) dependence on groundwater. Indicators 3 and 4 show that the resource stillpresents a great potential for further abstractions in most of theWRMUs, although there is evidence of overexploitation inthe Upper Tietê, Turvo/Grande, and Pardo basins, and low availability in the Upper Tietê, Piracicaba/Capivari/Jundiai,and Turvo/Grande. Indicator 5 (aquifer natural vulnerability) denotes that the WRMUs 2, 4, 8, 13, 14 and 18-22(part of the recharge area of Guarani Aquifer System) need more attention mainly where large contaminant loads arepresent. Indicator 6 shows the general excellent natural quality of groundwater, although it also denotes that 3 WRMUsneed special consideration due to chromium and fluoride contamination. Indicator 7 demonstrates a close relationshipbetween groundwater contamination occurrence and density/type of land occupation. 2007 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32779116 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.1 Vol.79 |
| format | Artículo científico |
| id | redalyc_32779116 |
| institution | Redalyc |
| language | en |
| publishDate | 2007 |
| publisher | Academia Brasileira de Ciências |
| spellingShingle | Groundwater resources in the State of São Paulo (Brazil): the application of indicators Ricardo Hirata Multidisciplinaria (Ciencias Naturales y Exactas) São Paulo management indicators groundwater public water supply Groundwater resources in the State of São Paulo (Brazil): the application of indicators Ricardo Hirata Alexandra Suhogusoff Amélia Fernandes Multidisciplinaria (Ciencias Naturales y Exactas) São Paulo management indicators groundwater public water supply Indicators, for groundwater resources, have mostly been employed to define the present status and the degradationtendency, regarding both quantity (under- or overexploitation) and quality (natural and anthropic contamination). Thiswork presents the application of indicators in order to draw a picture of the groundwater resources situation in the 22Water Resource Management Units (WRMU) of the State of São Paulo. The seven Indicators (I1 to I7) applied providea general overview of groundwater dependence (I1, I2), availability (I3, I4), and quality (I5, I6, I7). Considering publicsupply (Indicator 1), one observes that 9 WRMUs show high (>50% of the population supplied by groundwater), 6,intermediate (49-25%), and 7, low (<24%) dependence on groundwater. Indicators 3 and 4 show that the resource stillpresents a great potential for further abstractions in most of theWRMUs, although there is evidence of overexploitation inthe Upper Tietê, Turvo/Grande, and Pardo basins, and low availability in the Upper Tietê, Piracicaba/Capivari/Jundiai,and Turvo/Grande. Indicator 5 (aquifer natural vulnerability) denotes that the WRMUs 2, 4, 8, 13, 14 and 18-22(part of the recharge area of Guarani Aquifer System) need more attention mainly where large contaminant loads arepresent. Indicator 6 shows the general excellent natural quality of groundwater, although it also denotes that 3 WRMUsneed special consideration due to chromium and fluoride contamination. Indicator 7 demonstrates a close relationshipbetween groundwater contamination occurrence and density/type of land occupation. 2007 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32779116 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.1 Vol.79 |
| title | Groundwater resources in the State of São Paulo (Brazil): the application of indicators |
| topic | Multidisciplinaria (Ciencias Naturales y Exactas) São Paulo management indicators groundwater public water supply |
| url | https://www.redalyc.org/articulo.oa?id=32779116 |