A fast exploration of very deep soil layers by Eucalyptus seedlings and clones in Brazil
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- 作者：Rafael Costa Pinheiroa ; José ; Carlos de Deus Jr.a ; Yann Nouvellonb ; c ; Otá ; vio Camargo Campoed ; José ; Luiz Stapee ; Lí ; via Lanzi Aló ; f ; Iraê ; Amaral Guerrinia ; Christophe Jourdanb ; Jean-Paul Laclaua ; b ; laclau@cirad.fr" class="auth_mail" title="E-mail the corresponding author
- 关键词：Eucalypt ; Fine root ; Breeding ; Leaf area ; Root area ; Tropical soil
- 刊名：Forest Ecology and Management
- 出版年：2016
- 出版时间：15 April 2016
- 年：2016
- 卷：366
- 期：Complete
- 页码：143-152
- 全文大小：593 K
文摘
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Soils cores were sampled down to a depth of 13.5 m under 4 eucalypt genotypes 2 years after planting.
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Fine root densities were roughly constant between the depths of 0.25 and 6 m for all the genotypes.
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The depth of the root front ranged from 8.0 m to 11.5 m depending on the genotype.
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The root area: leaf area ratio ranged from 1.3 to 3.2 and was the highest for the genotypes with the lowest LAI.