1988
DOI: 10.1051/forest:19880202
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Croissance et développement du système racinaire de semis de trois espèces de conifères : Pseudotsuga menziesii, Pseudotsuga macrocarpa et Cedrus atlantica

Abstract: RésuméCette étude a pour objectif de comparer la croissance racinaire en minirhizotrons, de

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Cited by 4 publications
(3 citation statements)
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“…However, at high altitudes, the role of vegetation cover can be dangerous. Indeed, shading delays seed germination (M'Hirit, 1987;Grieu & Aussenac, 1988;Ezzahiri & Belghazi, 2000). In the case of Atlas cedar, rates of vegetation cover up to 50% were usually favorable to regeneration as opposed to extreme recoveries (Ezzahiri and Belghazi, 2000).…”
Section: Influence Of Rate Of Vegetation Cover On Seedlings Of the Atmentioning
confidence: 99%
“…However, at high altitudes, the role of vegetation cover can be dangerous. Indeed, shading delays seed germination (M'Hirit, 1987;Grieu & Aussenac, 1988;Ezzahiri & Belghazi, 2000). In the case of Atlas cedar, rates of vegetation cover up to 50% were usually favorable to regeneration as opposed to extreme recoveries (Ezzahiri and Belghazi, 2000).…”
Section: Influence Of Rate Of Vegetation Cover On Seedlings Of the Atmentioning
confidence: 99%
“…For instance, trees in the semi-arid savanna-woodlands of West Africa have deep rooting systems, hence the below-ground fraction may contain more than 50% of the woody biomass (Grieu and Aussenac 1988;Logbo et al 2011). Thus, robust estimation of BGB is clearly essential for determining regional C balances and C allocation patterns.…”
Section: Introductionmentioning
confidence: 99%
“…Another current limitation is that more attention has generally been paid to estimation of AGB than BGB (e.g., Zianis 2008), although BGB accounts for substantial proportions of total biomass , ranging from 10 to 90%, depending on vegetation type (Cairns et al 1997;Mokany et al 2006;Hairiah et al 2010) and agro-ecological conditions (Grieu and Aussenac 1988). For instance, trees in the semi-arid savanna-woodlands of West Africa have deep rooting systems, hence the below-ground fraction may contain more than 50% of the woody biomass (Grieu and Aussenac 1988;Logbo et al 2011).…”
Section: Introductionmentioning
confidence: 99%