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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
03/07/2024 |
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Data da última atualização: |
11/12/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ERCOLE, T. M.; GOMES, J. B. V.; RODRIGUES, V. dos S.; TRENTIN, N. dos S.; OLIVEIRA JUNIOR, J. C. de; ASSIS-PEREIRA, G.; TOMAZELLO-FILHO, M.; MOURA, A. P. C.; MAEDA, S.; PRIOR, S. A.; CONSALTER, R.; MOTTA, A. C. V. |
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Afiliação: |
TAMIRES MAIARA ERCOLE, UNIVERSIDADE DE SÃO PAULO; JOAO BOSCO VASCONCELLOS GOMES, CNPF; VALDÉCIO DOS SANTOS RODRIGUES, UNIVERSIDADE FEDERAL DO PARANÁ; NICOLAS DOS SANTOS TRENTIN, UNIVERSIDADE FEDERAL DO PARANÁ; JAIRO CALDERARI DE OLIVEIRA JUNIOR, UNIVERSIDADE FEDERAL DO PARANÁ; GABRIEL ASSIS-PEREIRA, UNIVERSIDADE DE SÃO PAULO; MARIO TOMAZELLO-FILHO, UNIVERSIDADE DE SÃO PAULO; AMANDA PACHECO CARDOSO MOURA, REFORESTATION REMASA; SHIZUO MAEDA, CNPF; STEPHEN ARTHUR PRIOR, UNITED STATES DEPARTMENT OF AGRICULTURE-AGRICULTURAL; RANGEL CONSALTER, ZAGROS SYSTEM COMPANY; ANTÔNIO CARLOS VARGAS MOTTA, UNIVERSIDADE FEDERAL DO PARANÁ. |
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Título: |
VARI as an indicator of site productivity of Pinus taeda L.: soil, litter, and plant nutrition. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
European Journal of Forest Research, v. 143, p. 1541-1562, 2024. |
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ISSN: |
1612-4669 |
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DOI: |
https://doi.org/10.1007/s10342-024-01711-y |
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Idioma: |
Português |
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Conteúdo: |
In commercial Pinus taeda stands, the appearance of needle chlorosis has intensified in slow growth areas. This study aimed to verify if Visible Atmospherically Resistant Index (VARI) captures heterogeneity of Pinus taeda development and to determine what specific factors are associated with occurrence of chlorotic symptoms. We evaluated a 14 year-old reforested P. taeda stand that had already undergone two thinnings; the study area encompassed 18.42 ha on soil derived from acidic igneous parent material. A VARI map was used to delineate the area into four classes: Very Low, Low, Medium, and High. In each class, tree growth was evaluated, and samples of tree tissue (needles, trunk cross sections, and fine roots), litter, and soil were collected for evaluation. There were no differences in soil classification and fertility between classes for this acidic low fertility soil. However, compared to the lower VARI classes (Low and Very Low), tree wood volume (without bark) of the High class was 0.20 m 3 higher per tree. Higher VARI classes showed greater concentrations of Ca and Mg in needles, bark, and fine roots. The High class also showed higher concentrations of Ca and Mg in litter, but with less litter accumulation. Therefore, VARI efficiently captured tree growth heterogeneity with a direct relationship noted between VARI and tree growth (height, DBH, volume, and trunk mass). In addition, chlorosis symptoms (yellowing) at needle tips and tree crown loss were more likely indicative of Mg deficiency, which probably caused reduced tree development. MenosIn commercial Pinus taeda stands, the appearance of needle chlorosis has intensified in slow growth areas. This study aimed to verify if Visible Atmospherically Resistant Index (VARI) captures heterogeneity of Pinus taeda development and to determine what specific factors are associated with occurrence of chlorotic symptoms. We evaluated a 14 year-old reforested P. taeda stand that had already undergone two thinnings; the study area encompassed 18.42 ha on soil derived from acidic igneous parent material. A VARI map was used to delineate the area into four classes: Very Low, Low, Medium, and High. In each class, tree growth was evaluated, and samples of tree tissue (needles, trunk cross sections, and fine roots), litter, and soil were collected for evaluation. There were no differences in soil classification and fertility between classes for this acidic low fertility soil. However, compared to the lower VARI classes (Low and Very Low), tree wood volume (without bark) of the High class was 0.20 m 3 higher per tree. Higher VARI classes showed greater concentrations of Ca and Mg in needles, bark, and fine roots. The High class also showed higher concentrations of Ca and Mg in litter, but with less litter accumulation. Therefore, VARI efficiently captured tree growth heterogeneity with a direct relationship noted between VARI and tree growth (height, DBH, volume, and trunk mass). In addition, chlorosis symptoms (yellowing) at needle tips and tree crown loss were more likely indi... Mostrar Tudo |
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Palavras-Chave: |
Drone; Nutritional deficiency; Soil depletion; X-ray densitometry. |
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Thesagro: |
Árvore Florestal; Crescimento; Pinus Taeda; Solo Florestal. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
null
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Registro original: |
Embrapa Florestas (CNPF) |
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| 1. |  | CARVALHO, A. C. M.; LAMEIRA, O. A.; PIRES, H. C. G.; ASSIS, M. A. de. Aspectos fenológicos de Hibiscus sabdariff L. (Malvaceae). In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA, 18.; SEMINÁRIO DE PÓS-GRADUAÇÃO DA EMBRAPA AMAZÔNIA ORIENTAL, 2., 2014, Belém, PA. Anais. Belém, PA: Embrapa Amazônia Oriental, 2014. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
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