| Registro completo |
| Provedor de dados: |
Agronomy
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| País: |
Brazil
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| Título: |
Soil water balance in different densities of Pinus taeda in Southern Brazil
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| Autores: |
Souza, Jorge Luiz Moretti
Fezer, Kharyn Freitas
Gurski, Bruno César
Jerszurki, Daniela
Pachechenik, Paulo Eugênio
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| Data: |
2016-04-01
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| Ano: |
2016
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| Palavras-chave: |
5.02.05.01-3 exotic forest
Spacing
Hydric relations
Soil water storage
Hydric consumption Hidrologia florestal
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| Resumo: |
This study aimed to quantify and compare water balance components over the course of a year for different Pinus taeda planting densities in an oxisol in southern Brazil. This experiment was conducted on 6-year-old trees in a clay oxisol at the Monte Alegre Farm, a property of the Klabin Company. The experimental design was a randomized block with four replicates and five treatments with different amounts of soil coverage: T100 (100% coverage - standard planting coverage); (T75, 75; T50, 50; and T25, 25%), and; T0 (without cover - clearcutting). The soil water storage and actual evapotranspiration under non-standard conditions were determined in a weekly estimated soil water balance (SWB) with measured components. By the end of the year, the treatments had not reached field capacity or wilting point storage. The average value of total downward drainage was 100.2 mm, and the highest values occurred in the T75 and T100 treatments. The lowest population density (T25) had the highest actual evapotranspiration (ETr), due to the growth of the remaining Pinus taeda trees. The highest evapotranspiration occurred in September, due to the resumption of Pinus taeda growth.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/26607
10.4025/actasciagron.v38i2.26607
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| Editor: |
Universidade Estadual de Maringá
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| Relação: |
http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/26607/pdf_135
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| Formato: |
application/pdf
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| Fonte: |
Acta Scientiarum. Agronomy; v. 38, n. 2 (2016); 265-271
Acta Scientiarum. Agronomy; v. 38, n. 2 (2016); 265-271
1807-8621
1679-9275
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