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| Titel: |
MICROBIOLOGIC AND BIOCHEMICAL ATTRIBUTES AS INDICATORS OF THE RECOVERY OF DEGRADED AREAS, IN ITAJUBÁ/MG |
| Auteur: |
Rafael Botelho Silveira Rogério Melloni Eliane Guimarães Pereira Melloni |
| Verschenen in: |
Cerne |
| Paginering: | Jaargang 12 (2006) nr. 1 pagina's 48-55 |
| Jaar: |
2006 |
| Inhoud: |
This paper evaluated and compared the microbial and biochemical parameters of degraded areas, in rehabilitation,with natural areas, considered reference, without recent human interference, in Itajubá (MG, Brazil), to verify their capacity to indicatethe soil quality and rehabilitation capacity. Soil samples were collected in February 2003 (summer), on six sites: three in natural areasand other three in degraded areas, under rehabilitation. Total density of fungi and bacteria, phosphate solubilizing microorganisms,microbial biomass C and activity were evaluated. Moreover were established relationships among visual and microbial and biochemicalparameters, verifying their potential use as indicators in studies of soil rehabilitation on degraded areas. Degradation promotedstrong negative impact in the soil microbiota, reducing the number of all microbial groups studied, microbial activity and biomass.The soil microbial and biochemical parameters were considered good indicators of the soil rehabilitation on degraded areas. The soilrehabilitation evidenced by visual parameters of soil, plants and organisms had not direct positive relationship with those observedin the underground through microbial and biochemical indicators. These findings show that rehabilitation of degraded areas isstrongly affected by soil microbial and biochemical parameters. |
| Uitgever: |
Universidade Federal de Lavras - UFLA (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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