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| 10. |  | CARNEIRO, C.; REISSMANN, C. B.; MARQUES, R. Comparação de métodos de análise química de K, Ca, Mg e Al, em folhas de erva-mate (Ilex paraguariensis St. Hil.). Cerne, Lavras, v. 12, n. 2, p. 113-122, jan./mar. 2006.| Biblioteca(s): Embrapa Florestas. |
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| 11. | | CARNEIRO, C.; REISSMANN, C. B.; MARQUES, R. Comparação de métodos de análise química de K, Ca, Mg, Al, em folhas de erva-mate (Ilex paraguariensis St. Hill.). Cerne, Lavras, v. 12, n. 2, p. 113-122, abr./jun. 2006.| Biblioteca(s): Embrapa Florestas. |
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| 18. | | MARQUES, R.; BERTÉ, L.; PIAZZA, G. E.; SANTOS, S. Dinâmica de N, P, K e pH no ciclo hidrológico da Floresta Atlântica em regeneração, no litoral paranaense. In: SIMPÓSIO NACIONAL SOBRE RECUPERAÇÃO DE ÁREAS DEGRADADAS, 5., 2002, Belo Horizonte. Água e biodiversidade: trabalhos voluntários. Belo Horizonte: SOBRADE, 2002. p. 37-39.| Biblioteca(s): Embrapa Florestas. |
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| Registros recuperados : 228 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
11/09/2008 |
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Data da última atualização: |
11/09/2008 |
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Autoria: |
KAHLE, H. P.; GÜNTHER, J.; SPIECKER, H.; MARQUES, R.; BRÜSKE, J. |
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Título: |
Continuous monitoring of tree radial growth and stem hydrology with electronic point dendrometers - An example from the Atlantic Rain Forest, Paraná, Brazil |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: SEMINÁRIO NACIONAL SOBRE DINÂMICAS DE FLORESTAS, 1., 2008, Curitiba. Anais. Colombo: Embrapa Florestas, 2008. |
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Descrição Física: |
1 CD-ROM. |
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ISBN: |
978-85-89281-22-5 |
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Idioma: |
Inglês |
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Notas: |
Resumo 64. |
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Conteúdo: |
Monitoring of forest ecosystems is a means to assess the state of the ecosystems by providing information on its present conditions. Information from long-term monitoring is needed to judge whether a given state is close to or far from a reference state. In systems with long developmental cycles trends only become visible when looking on long-term dynamics. Conditions of forest ecosystems refer to different spatial and temporal scales as well as different hierarchical levels. Dendrometer data provide information on the short-term and seasonal dynamics of tree radial growth as well as on stem hydrology. Combining dendrometer data with data on environmental conditions, e.g. meteorological and soil conditions, gives insight into ecophysiological processes and biogeochemical cycles in the forest ecosystems. We show data and descriptive analysis results from the ecological field measurement station at Reserva Natural do Cachoeira, Antonina,
Paraná, which demonstrate the substantial contribution dendrometer measurements can provide to the monitoring of forest ecosystems. Data for the period October 2006 and December 2007 are presented. Sample trees of four tree species were equipped with electronic point dendrometers: Pera glabrata (PG); Vochysia bifalcata (VB); Tapiria guianensis (TG), Andira anthelmintica (AA). In addition air temperature (TP), relative air humidity (RF) and soil moisture tension at 30 cm (Tens30) and 60 cm (Tens60) soil depth were measured inside the forest. The measurement interval was 5 minutes. The average daily stem radial increment (1/100 mm*day-1) was 0.26 for PG, 1.03 for VB, 0.27 for TG, and 0.06 for AA. Stem radial growth mainly took place on cloudy days, whereas on sunny days average daily stem radial increment was either negative or small as compared to that on cloudy days. The daily cycle in stem radial changes is affected by stem hydrological changes and consists of a contraction and expansion phase. The average daily
amplitude in stem radial dimension (1/100 mm*day-1) was 4.14 for PG, 4.26 for VB, 7.04 for TG, and 3.42 for AA. Cross-correlation analysis reveals for all species a close relation between daily changes in tree radial displacement and the daily courses of RF, TP, Tens30 and Tens60. The response times of the tree stems? reactions, i.e. the lead and lag-times, differ among species, indicating species specific environmental controls of physiological processes. MenosMonitoring of forest ecosystems is a means to assess the state of the ecosystems by providing information on its present conditions. Information from long-term monitoring is needed to judge whether a given state is close to or far from a reference state. In systems with long developmental cycles trends only become visible when looking on long-term dynamics. Conditions of forest ecosystems refer to different spatial and temporal scales as well as different hierarchical levels. Dendrometer data provide information on the short-term and seasonal dynamics of tree radial growth as well as on stem hydrology. Combining dendrometer data with data on environmental conditions, e.g. meteorological and soil conditions, gives insight into ecophysiological processes and biogeochemical cycles in the forest ecosystems. We show data and descriptive analysis results from the ecological field measurement station at Reserva Natural do Cachoeira, Antonina,
Paraná, which demonstrate the substantial contribution dendrometer measurements can provide to the monitoring of forest ecosystems. Data for the period October 2006 and December 2007 are presented. Sample trees of four tree species were equipped with electronic point dendrometers: Pera glabrata (PG); Vochysia bifalcata (VB); Tapiria guianensis (TG), Andira anthelmintica (AA). In addition air temperature (TP), relative air humidity (RF) and soil moisture tension at 30 cm (Tens30) and 60 cm (Tens60) soil depth were measured inside the forest. Th... Mostrar Tudo |
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Categoria do assunto: |
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Marc: |
LEADER 03136naa a2200205 a 4500
001 1314779
005 2008-09-11
008 2008 bl uuuu u00u1 u #d
020 $a978-85-89281-22-5
100 1 $aKAHLE, H. P.
245 $aContinuous monitoring of tree radial growth and stem hydrology with electronic point dendrometers - An example from the Atlantic Rain Forest, Paraná, Brazil
260 $c2008
300 $c1 CD-ROM.
500 $aResumo 64.
520 $aMonitoring of forest ecosystems is a means to assess the state of the ecosystems by providing information on its present conditions. Information from long-term monitoring is needed to judge whether a given state is close to or far from a reference state. In systems with long developmental cycles trends only become visible when looking on long-term dynamics. Conditions of forest ecosystems refer to different spatial and temporal scales as well as different hierarchical levels. Dendrometer data provide information on the short-term and seasonal dynamics of tree radial growth as well as on stem hydrology. Combining dendrometer data with data on environmental conditions, e.g. meteorological and soil conditions, gives insight into ecophysiological processes and biogeochemical cycles in the forest ecosystems. We show data and descriptive analysis results from the ecological field measurement station at Reserva Natural do Cachoeira, Antonina, Paraná, which demonstrate the substantial contribution dendrometer measurements can provide to the monitoring of forest ecosystems. Data for the period October 2006 and December 2007 are presented. Sample trees of four tree species were equipped with electronic point dendrometers: Pera glabrata (PG); Vochysia bifalcata (VB); Tapiria guianensis (TG), Andira anthelmintica (AA). In addition air temperature (TP), relative air humidity (RF) and soil moisture tension at 30 cm (Tens30) and 60 cm (Tens60) soil depth were measured inside the forest. The measurement interval was 5 minutes. The average daily stem radial increment (1/100 mm*day-1) was 0.26 for PG, 1.03 for VB, 0.27 for TG, and 0.06 for AA. Stem radial growth mainly took place on cloudy days, whereas on sunny days average daily stem radial increment was either negative or small as compared to that on cloudy days. The daily cycle in stem radial changes is affected by stem hydrological changes and consists of a contraction and expansion phase. The average daily amplitude in stem radial dimension (1/100 mm*day-1) was 4.14 for PG, 4.26 for VB, 7.04 for TG, and 3.42 for AA. Cross-correlation analysis reveals for all species a close relation between daily changes in tree radial displacement and the daily courses of RF, TP, Tens30 and Tens60. The response times of the tree stems? reactions, i.e. the lead and lag-times, differ among species, indicating species specific environmental controls of physiological processes.
700 1 $aGÜNTHER, J.
700 1 $aSPIECKER, H.
700 1 $aMARQUES, R.
700 1 $aBRÜSKE, J.
773 $tIn: SEMINÁRIO NACIONAL SOBRE DINÂMICAS DE FLORESTAS, 1., 2008, Curitiba. Anais. Colombo: Embrapa Florestas, 2008.
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