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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
04/11/2022 |
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Data da última atualização: |
04/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
KRUCHELSKI, S.; TRAUTENMÜLLER, J. W.; ORSO, G. A.; TRICHES, G. P.; PORFIRIO-DA-SILVA, V.; MORAES, A. de. |
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Afiliação: |
SILVANO KRUCHELSKI, UNIVERSIDADE FEDERAL DO PARANA; JONATHAN WILLIAM TRAUTENMÜLLER, UNIVERSIDADE FEDERAL RURAL DO AMAZONAS; GABRIEL AGOSTINI ORSO; GILMAR PAULINHO TRICHES, INSTITUTO FEDERAL CATARINENSE; VANDERLEY PORFIRIO DA SILVA, CNPF; ANIBAL DE MORAES. |
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Título: |
Growth and productivity of Eucalyptus benthamii in integrated crop-livestock systems in southern Brazil. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Agroforestry Systems, 2022. |
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DOI: |
https://doi.org/10.1007/s10457-022-00785-0 |
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Idioma: |
Inglês |
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Conteúdo: |
Integrated crop?livestock systems (ICLS) are production models that promote sustainable intensification and integrate agricultural and forestry production systems, generating a combination of economic and environmental benefits. Knowledge is still scarce about the growth and productivity of the tree component in ICLS, and there is a lack of long-term landscape-scale assessments about the provision of ecosystem services in ICLS. Our objective was to evaluate the monthly stem volume increment and productivity of Eucalyptus benthamii, at 7 years old, using metal dendrometer bands, for three different models of ICLS that integrate trees to the crop (crop?forestry?CF), livestock (livestock?forestry?LF), or both (crop?livestock?forestry?CLF) in southern Brazil. The form factor decreased while increasing age, with 0.516 at 4 years and 0.437 at 6 years after planting. In ICLS, we found the productivity of E. benthamii similar to the national averages for monoculture forestry in the United States and Brazil. At 6.5 years after planting, the average annual stem volume increment was 22.7 m3 ha−1 year−1 (LF), 24.6 m3 ha−1 year−1 (CLF) and 25.5 m3 ha−1 year−1 (CF), respectively. The CF production system provided trees with greater accumulated stem volume within 7 years of age. The LF system, on the other hand, provided trees with an equal increment in diameter, but less accumulated stem volume, and, therefore, smaller heights, suggesting that there is interference from cattle and pasture management on the growth and productivity of E. benthamii. ICLS are configured as an excellent possibility for vertical expansion of agricultural frontiers, promoting sustainable intensification, as well as can prevent horizontal expansion into new areas, reducing pressure on native forests, and contributing to combating deforestation. MenosIntegrated crop?livestock systems (ICLS) are production models that promote sustainable intensification and integrate agricultural and forestry production systems, generating a combination of economic and environmental benefits. Knowledge is still scarce about the growth and productivity of the tree component in ICLS, and there is a lack of long-term landscape-scale assessments about the provision of ecosystem services in ICLS. Our objective was to evaluate the monthly stem volume increment and productivity of Eucalyptus benthamii, at 7 years old, using metal dendrometer bands, for three different models of ICLS that integrate trees to the crop (crop?forestry?CF), livestock (livestock?forestry?LF), or both (crop?livestock?forestry?CLF) in southern Brazil. The form factor decreased while increasing age, with 0.516 at 4 years and 0.437 at 6 years after planting. In ICLS, we found the productivity of E. benthamii similar to the national averages for monoculture forestry in the United States and Brazil. At 6.5 years after planting, the average annual stem volume increment was 22.7 m3 ha−1 year−1 (LF), 24.6 m3 ha−1 year−1 (CLF) and 25.5 m3 ha−1 year−1 (CF), respectively. The CF production system provided trees with greater accumulated stem volume within 7 years of age. The LF system, on the other hand, provided trees with an equal increment in diameter, but less accumulated stem volume, and, therefore, smaller heights, suggesting that there is ... Mostrar Tudo |
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Palavras-Chave: |
Agrofloresta; Annual volumetric increment; Dendrometer band. |
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Thesaurus Nal: |
Agroforestry; Eucalyptus benthamii. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02653naa a2200253 a 4500
001 2148060
005 2022-11-04
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s10457-022-00785-0$2DOI
100 1 $aKRUCHELSKI, S.
245 $aGrowth and productivity of Eucalyptus benthamii in integrated crop-livestock systems in southern Brazil.$h[electronic resource]
260 $c2022
520 $aIntegrated crop?livestock systems (ICLS) are production models that promote sustainable intensification and integrate agricultural and forestry production systems, generating a combination of economic and environmental benefits. Knowledge is still scarce about the growth and productivity of the tree component in ICLS, and there is a lack of long-term landscape-scale assessments about the provision of ecosystem services in ICLS. Our objective was to evaluate the monthly stem volume increment and productivity of Eucalyptus benthamii, at 7 years old, using metal dendrometer bands, for three different models of ICLS that integrate trees to the crop (crop?forestry?CF), livestock (livestock?forestry?LF), or both (crop?livestock?forestry?CLF) in southern Brazil. The form factor decreased while increasing age, with 0.516 at 4 years and 0.437 at 6 years after planting. In ICLS, we found the productivity of E. benthamii similar to the national averages for monoculture forestry in the United States and Brazil. At 6.5 years after planting, the average annual stem volume increment was 22.7 m3 ha−1 year−1 (LF), 24.6 m3 ha−1 year−1 (CLF) and 25.5 m3 ha−1 year−1 (CF), respectively. The CF production system provided trees with greater accumulated stem volume within 7 years of age. The LF system, on the other hand, provided trees with an equal increment in diameter, but less accumulated stem volume, and, therefore, smaller heights, suggesting that there is interference from cattle and pasture management on the growth and productivity of E. benthamii. ICLS are configured as an excellent possibility for vertical expansion of agricultural frontiers, promoting sustainable intensification, as well as can prevent horizontal expansion into new areas, reducing pressure on native forests, and contributing to combating deforestation.
650 $aAgroforestry
650 $aEucalyptus benthamii
653 $aAgrofloresta
653 $aAnnual volumetric increment
653 $aDendrometer band
700 1 $aTRAUTENMÜLLER, J. W.
700 1 $aORSO, G. A.
700 1 $aTRICHES, G. P.
700 1 $aPORFIRIO-DA-SILVA, V.
700 1 $aMORAES, A. de
773 $tAgroforestry Systems, 2022.
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Embrapa Florestas (CNPF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
21/08/2008 |
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Data da última atualização: |
06/04/2009 |
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Autoria: |
MARTINS, P. T.; NUNES, D. H.; PASINI, A.; MOTTE, B.; SANTOS, A. A. dos; SILVA, S. H. da; BROWN, G. G. |
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Título: |
Efficiency of electroshocking and formol extraction of earthworms compared to handsorting in agricultural and natural ecosystems near Londrina, Brazil. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
In: International Symposium on Earthworm Ecology, 8., 2006, Kraków. Abstracts... Kraków: Jagiellonian University, 2006. p. 76. |
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Idioma: |
Inglês |
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Conteúdo: |
Sampling of earthworms is generally a labor intensive and time-consuming activity and means of reducing the time and effort necessary to sample earthworm populations are always welcome. Therefore, in the present study, we compared the efficiency of two "quicker" and "easier" alternatives (electro-shocking and dilute-formalin expulsion) in relation to the traditional hand-sorting method. Sampling was performed in four ecosystems: 1) Native forest (secondary vegetation); 2) edge of a cattail marsh; 3) sorghum croppìng (after harvest); and 4) a >10 yr old Cynodon spp. pasture grazed by horses. Electro-shocking (Thielemann octet method) was performed over an area of approximately 0.4 m2 for 20 min and immediately thereafter, earthworms were handsorted from 0.16 m2 soil monoliths, to a depth of 30 cm, directly underneath the electro-shocked area. Formalin (0.5%) was applied to a 1 m2 area, 5-m away, and the surfacing earthworms collected. Eight samples were taken in the forest and the marsh and 5 samples were taken in the agroecosystems. Earthworms were killed in alcohol (30%) and then fixed in formalin. All individuals collected with each method were counted (separately into age classes), weighed and identified to species level (when possible). Earthworm diversity was always higher with the handsorting method (forest = 8 spp., crop system = 6 spp., swamp = 3 spp., pasture = 2 spp.). Formol and electro-shocking yielded at most 3 species only, generally the fastermoving epigeics and poly-humic endogeics. Amynthas gracilis and Urobenus brasiliensis predominated in the forest, Pontoscolex corethrurus dominated in the marsh and various Dichogaster spp. dominated in the agroecosystems. Earthworm abundance was highest in the cropping system, followed by the forest, swamp and pasture. Efficiency of the sample methods depended on the ecosystem, the species and the measurement in question. At all sites, electro-shocking yielded the fewest earthworms, and the extraction efficiency, was generally low for the total earthworm population: from 0% in the pasture, where the soil was compact and drier, to around 20-30% in the remaining ecosystems. Formalin expulsion was also less efficient than handsorting (10-25%), except in the forest, where it yielded 5 times as many earthworms, primarily due to its efficient sampling of Amynthas and Urobenus spp. Electro-shocking and formalin appear to be interesting methods to sample mostly large, surface-active earthworms, whereas handsorting appears to be better suited for smaller, mostly endogeic earthworm species. Ideally, a combination of both methods should be attempted, to adequately sample both large and faster moving earthworms often missed by handsorting, and smaller, endogeic earthworms, not adequately sampled with formol or electricity. MenosSampling of earthworms is generally a labor intensive and time-consuming activity and means of reducing the time and effort necessary to sample earthworm populations are always welcome. Therefore, in the present study, we compared the efficiency of two "quicker" and "easier" alternatives (electro-shocking and dilute-formalin expulsion) in relation to the traditional hand-sorting method. Sampling was performed in four ecosystems: 1) Native forest (secondary vegetation); 2) edge of a cattail marsh; 3) sorghum croppìng (after harvest); and 4) a >10 yr old Cynodon spp. pasture grazed by horses. Electro-shocking (Thielemann octet method) was performed over an area of approximately 0.4 m2 for 20 min and immediately thereafter, earthworms were handsorted from 0.16 m2 soil monoliths, to a depth of 30 cm, directly underneath the electro-shocked area. Formalin (0.5%) was applied to a 1 m2 area, 5-m away, and the surfacing earthworms collected. Eight samples were taken in the forest and the marsh and 5 samples were taken in the agroecosystems. Earthworms were killed in alcohol (30%) and then fixed in formalin. All individuals collected with each method were counted (separately into age classes), weighed and identified to species level (when possible). Earthworm diversity was always higher with the handsorting method (forest = 8 spp., crop system = 6 spp., swamp = 3 spp., pasture = 2 spp.). Formol and electro-shocking yielded at most 3 species only, generally the fastermoving epigeics a... Mostrar Tudo |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03499naa a2200193 a 4500
001 1470763
005 2009-04-06
008 2006 bl --- 0-- u #d
100 1 $aMARTINS, P. T.
245 $aEfficiency of electroshocking and formol extraction of earthworms compared to handsorting in agricultural and natural ecosystems near Londrina, Brazil.
260 $c2006
520 $aSampling of earthworms is generally a labor intensive and time-consuming activity and means of reducing the time and effort necessary to sample earthworm populations are always welcome. Therefore, in the present study, we compared the efficiency of two "quicker" and "easier" alternatives (electro-shocking and dilute-formalin expulsion) in relation to the traditional hand-sorting method. Sampling was performed in four ecosystems: 1) Native forest (secondary vegetation); 2) edge of a cattail marsh; 3) sorghum croppìng (after harvest); and 4) a >10 yr old Cynodon spp. pasture grazed by horses. Electro-shocking (Thielemann octet method) was performed over an area of approximately 0.4 m2 for 20 min and immediately thereafter, earthworms were handsorted from 0.16 m2 soil monoliths, to a depth of 30 cm, directly underneath the electro-shocked area. Formalin (0.5%) was applied to a 1 m2 area, 5-m away, and the surfacing earthworms collected. Eight samples were taken in the forest and the marsh and 5 samples were taken in the agroecosystems. Earthworms were killed in alcohol (30%) and then fixed in formalin. All individuals collected with each method were counted (separately into age classes), weighed and identified to species level (when possible). Earthworm diversity was always higher with the handsorting method (forest = 8 spp., crop system = 6 spp., swamp = 3 spp., pasture = 2 spp.). Formol and electro-shocking yielded at most 3 species only, generally the fastermoving epigeics and poly-humic endogeics. Amynthas gracilis and Urobenus brasiliensis predominated in the forest, Pontoscolex corethrurus dominated in the marsh and various Dichogaster spp. dominated in the agroecosystems. Earthworm abundance was highest in the cropping system, followed by the forest, swamp and pasture. Efficiency of the sample methods depended on the ecosystem, the species and the measurement in question. At all sites, electro-shocking yielded the fewest earthworms, and the extraction efficiency, was generally low for the total earthworm population: from 0% in the pasture, where the soil was compact and drier, to around 20-30% in the remaining ecosystems. Formalin expulsion was also less efficient than handsorting (10-25%), except in the forest, where it yielded 5 times as many earthworms, primarily due to its efficient sampling of Amynthas and Urobenus spp. Electro-shocking and formalin appear to be interesting methods to sample mostly large, surface-active earthworms, whereas handsorting appears to be better suited for smaller, mostly endogeic earthworm species. Ideally, a combination of both methods should be attempted, to adequately sample both large and faster moving earthworms often missed by handsorting, and smaller, endogeic earthworms, not adequately sampled with formol or electricity.
700 1 $aNUNES, D. H.
700 1 $aPASINI, A.
700 1 $aMOTTE, B.
700 1 $aSANTOS, A. A. dos
700 1 $aSILVA, S. H. da
700 1 $aBROWN, G. G.
773 $tIn: International Symposium on Earthworm Ecology, 8., 2006, Kraków. Abstracts... Kraków: Jagiellonian University, 2006. p. 76.
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