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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
25/04/1991 |
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Data da última atualização: |
16/01/2025 |
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Autoria: |
PARKER, L. W.; ELKINS, N. Z.; ALDON, E. F.; WHITFORD, W. G. |
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Título: |
Decomposition and soil biota after reclamation of coal mine spoils in an arid region. |
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Ano de publicação: |
1987 |
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Fonte/Imprenta: |
Biology and Fertility of Soils, New York, v. 4, n. 3, p. 129-135, 1987. |
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Idioma: |
Inglês |
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Conteúdo: |
We compared soil biota and buried wheat straw decomposition on sites subject to topsoiling plus straw mulch reclamation procedures 1 - 4 years prior to our study and on an unmined site. Rates of straw decomposition were highest on the unmined site. Decomposition rates were higher on the 1- and 2-year- old sites than on the 3- and 4-year-old reclaimed spoil. Microarthropod population densities and number of taxa were greater from decomposing straw on the un- mined site and lowest from straw on the 1- and 2-year- old areas. Soil bacteria, fungi, and protozoan popula- tions on buried straw on the oldest reclaimed sites were generally equal to those on the unmined area. Nematode populations on buried straw in the unmin- ed site and 1- and 2-year-old reclaimed sites were simi- lar. Populations of denitrifying bacteria were larger on recently reclaimed sites than on 3- and 4-year-old sites. Decomposition and nitrogen mineralization varied as a function of the diversity and abundance of soil microarthropods. Soil microfauna can serve as an in- dex of soil development in a disturbed arid soil |
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Palavras-Chave: |
Area degradada; Restauração. |
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Thesagro: |
Bactéria; Biota; Fungo; Nematóide; Protozoário; Solo. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
null
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Embrapa Florestas (CNPF) |
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