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Details van artikel 84 van 93 gevonden artikelen
| Titel: |
Study of the land degradation in the municipality of Boa Vista-Paraíba |
| Auteur: |
Ridelson Farias de Sousa Marx Prestes Barbosa Cícero Pereira Cordão Terceiro Neto João Miguel de Morais Neto Severino Pereira de Sousa Júnior |
| Verschenen in: |
Engenharia ambiental |
| Paginering: | Jaargang 4 (2007) nr. 2 pagina's 5-13 |
| Jaar: |
2007 |
| Inhoud: |
The study area covers all the territory of the municipality of Boa Vista, located in the Microrregião Homogênea dos Cariris Velhos, semi-arid region of the State of Paraíba. The main objective of this study was to elaborate space-temporal thematic maps of the land degradation expansion in the municipality of Boa Vista for the period 1987/2004, based on TM/Landsat-5 image analysis and field work data. The Landsat images digital processing was carried on the SPRING, v.4.2 (CÂMARA et al., 1998). The results had shown that in the study area are presented degradation levels varying from low to the very serious. The degradation levels very low, low and moderate had their occurrence diminished in 4.72%, 9.64% and 0.98%, respectively during the period since 1987 to 2004. In opposing way, the areas of moderate serious, serious and very serious degradation levels had increased in the period, with increments of 2.90%; 6.66% and 5.72%, respectively. In the municipality the land degradation is resultant of a lack of conservation practical in the use of agricultural soils by the farmers, of a lack of an infrastructure for mitigating the drought effects and of a lack of public polices for a sustainable life in the semi-arid region. |
| Uitgever: |
Environmental Engineering Course / UNIPINHAL (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 84 van 93 gevonden artikelen
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