FOREST LITTER DECOMPOSITION AS AFFECTED BY EUCALYPTUS STAND AGE AND TOPOGRAPHY IN SOUTH-EASTERN BRAZIL
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| Format: | Artículo científico |
| Language: | en |
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Universidade Federal de Viçosa
2015
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| _version_ | 1876470286750056448 |
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| author | Alba Lucia Araujo Skorupa |
| author_facet | Alba Lucia Araujo Skorupa |
| contents | FOREST LITTER DECOMPOSITION AS AFFECTED BY EUCALYPTUS STAND AGE AND TOPOGRAPHY IN SOUTH-EASTERN BRAZIL Alba Lucia Araujo Skorupa Nairam Félix de Barros Júlio César Lima Neves Agrociencias Litterbag Litterbag Litterbag CO2 evolution CO2 evolution Forest litter decomposition is a major process in returning nutrients to soils and thus promotingwood productivity in the humid tropic. This study aimed to assess decomposition of eucalypt litter in theRio Doce region, Brazil. Leaf litter was sampled under clonal eucalypt stands aged 2, 4 and 6 years on hillslopesand footslopes. Soil and soil+litter samples were incubated at two levels of soil moisture, temperature andfertilization. C-CO2 emissions from soil measured during 106 days were higher at 32 °C than at 23°C, mainlyfor the 2-yr-old stand on footslope. When leaf litter was added on soils, C-CO2 emissions were eight timeshigher, mainly on footslopes, with no effect of stand age. Leaf decomposition in situ, assessed with a litterbagexperiment showed a mean weight loss of at least 50% during 365 days, reaching 74% for 2 yr-old standson footslopes. In comparison with data from the native forest and the literature, no apparent restrictionswere found in eucalypt litter decomposition. Differences between in vitro and in situ results, and betweeneucalypt and native forest, were most likely related to the response of diverse decomposer communities andto substrate quality. 2015 artículo científico 0100-6762 https://www.redalyc.org/articulo.oa?id=48843584008 en http://www.redalyc.org/revista.oa?id=488 Revista Árvore application/pdf Universidade Federal de Viçosa Revista Árvore (Brasil) Num.6 Vol.39 |
| format | Artículo científico |
| id | redalyc_48843584008 |
| institution | Redalyc |
| language | en |
| publishDate | 2015 |
| publisher | Universidade Federal de Viçosa |
| spellingShingle | FOREST LITTER DECOMPOSITION AS AFFECTED BY EUCALYPTUS STAND AGE AND TOPOGRAPHY IN SOUTH-EASTERN BRAZIL Alba Lucia Araujo Skorupa Agrociencias Litterbag Litterbag Litterbag CO2 evolution CO2 evolution FOREST LITTER DECOMPOSITION AS AFFECTED BY EUCALYPTUS STAND AGE AND TOPOGRAPHY IN SOUTH-EASTERN BRAZIL Alba Lucia Araujo Skorupa Nairam Félix de Barros Júlio César Lima Neves Agrociencias Litterbag Litterbag Litterbag CO2 evolution CO2 evolution Forest litter decomposition is a major process in returning nutrients to soils and thus promotingwood productivity in the humid tropic. This study aimed to assess decomposition of eucalypt litter in theRio Doce region, Brazil. Leaf litter was sampled under clonal eucalypt stands aged 2, 4 and 6 years on hillslopesand footslopes. Soil and soil+litter samples were incubated at two levels of soil moisture, temperature andfertilization. C-CO2 emissions from soil measured during 106 days were higher at 32 °C than at 23°C, mainlyfor the 2-yr-old stand on footslope. When leaf litter was added on soils, C-CO2 emissions were eight timeshigher, mainly on footslopes, with no effect of stand age. Leaf decomposition in situ, assessed with a litterbagexperiment showed a mean weight loss of at least 50% during 365 days, reaching 74% for 2 yr-old standson footslopes. In comparison with data from the native forest and the literature, no apparent restrictionswere found in eucalypt litter decomposition. Differences between in vitro and in situ results, and betweeneucalypt and native forest, were most likely related to the response of diverse decomposer communities andto substrate quality. 2015 artículo científico 0100-6762 https://www.redalyc.org/articulo.oa?id=48843584008 en http://www.redalyc.org/revista.oa?id=488 Revista Árvore application/pdf Universidade Federal de Viçosa Revista Árvore (Brasil) Num.6 Vol.39 |
| title | FOREST LITTER DECOMPOSITION AS AFFECTED BY EUCALYPTUS STAND AGE AND TOPOGRAPHY IN SOUTH-EASTERN BRAZIL |
| topic | Agrociencias Litterbag Litterbag Litterbag CO2 evolution CO2 evolution |
| url | https://www.redalyc.org/articulo.oa?id=48843584008 |