Mixing Eucalyptus and Acacia trees leads to fine root over-yielding and vertical segregation between species
The consequences of diversity on belowground processes are still poorly known in tropical forests. The distributions of very fine roots (diameter\1 mm) and fine roots (diameter \3 mm) were studied in a randomized block design close to the harvest age of fast-growing plantations. A replacement series was set up in Brazil with mono-specific Eucalyptus grandis (100E) and Acacia mangium (100A) stands and a mixture with the same stocking density and 50 % of each species (50A:50E). The total fine root (FR) biomass down to a depth of 2 m was about 27 % higher in 50A:50E than in 100A and 100E. Fine root over-yielding in 50A:50E resulted from a 72 % rise in E. grandis fine root biomass per tree relative to 100E, whereas A. mangium FR biomass per tree was 17 % lower than in 100A. Mixing A. mangium with E. grandis trees led to a drop in A. mangium FR biomass in the upper 50 cm of soil relative to 100A, partially balanced by a rise in deep soil layers. Our results highlight similarities in the effects of directional resources on leaf and FR distributions in the mixture, with A. mangium leaves below the E. grandis canopy and a low density of A. mangium fine roots in the resource-rich soil layers relative to monospecific stands. The vertical segregation of resource-absorbing organs did not lead to niche complementarity expected to increase the total biomass production.
id |
dig-cirad-fr-570104 |
---|---|
record_format |
koha |
spelling |
dig-cirad-fr-5701042024-01-28T21:34:35Z http://agritrop.cirad.fr/570104/ http://agritrop.cirad.fr/570104/ Mixing Eucalyptus and Acacia trees leads to fine root over-yielding and vertical segregation between species. Laclau Jean-Paul, Nouvellon Yann, Reine Caroline, De Moraes Gonçalves Jose Leonardo, Krusche Alex Vladimir, Jourdan Christophe, Le Maire Guerric, Bouillet Jean-Pierre. 2013. Oecologia, 172 (3) : 903-913.https://doi.org/10.1007/s00442-012-2526-2 <https://doi.org/10.1007/s00442-012-2526-2> Mixing Eucalyptus and Acacia trees leads to fine root over-yielding and vertical segregation between species Laclau, Jean-Paul Nouvellon, Yann Reine, Caroline De Moraes Gonçalves, Jose Leonardo Krusche, Alex Vladimir Jourdan, Christophe Le Maire, Guerric Bouillet, Jean-Pierre eng 2013 Oecologia K10 - Production forestière F62 - Physiologie végétale - Croissance et développement F40 - Écologie végétale Eucalyptus grandis Acacia mangium forêt tropicale plantation forestière culture en mélange monoculture diversification rendement des cultures biomasse racine adventive compétition végétale absorption de substances nutritives sol tropical teneur en eau du sol http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_42 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_4871 http://aims.fao.org/aos/agrovoc/c_4915 http://aims.fao.org/aos/agrovoc/c_2344 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_24812 http://aims.fao.org/aos/agrovoc/c_35264 http://aims.fao.org/aos/agrovoc/c_5273 http://aims.fao.org/aos/agrovoc/c_7978 http://aims.fao.org/aos/agrovoc/c_7208 Brésil http://aims.fao.org/aos/agrovoc/c_1070 The consequences of diversity on belowground processes are still poorly known in tropical forests. The distributions of very fine roots (diameter\1 mm) and fine roots (diameter \3 mm) were studied in a randomized block design close to the harvest age of fast-growing plantations. A replacement series was set up in Brazil with mono-specific Eucalyptus grandis (100E) and Acacia mangium (100A) stands and a mixture with the same stocking density and 50 % of each species (50A:50E). The total fine root (FR) biomass down to a depth of 2 m was about 27 % higher in 50A:50E than in 100A and 100E. Fine root over-yielding in 50A:50E resulted from a 72 % rise in E. grandis fine root biomass per tree relative to 100E, whereas A. mangium FR biomass per tree was 17 % lower than in 100A. Mixing A. mangium with E. grandis trees led to a drop in A. mangium FR biomass in the upper 50 cm of soil relative to 100A, partially balanced by a rise in deep soil layers. Our results highlight similarities in the effects of directional resources on leaf and FR distributions in the mixture, with A. mangium leaves below the E. grandis canopy and a low density of A. mangium fine roots in the resource-rich soil layers relative to monospecific stands. The vertical segregation of resource-absorbing organs did not lead to niche complementarity expected to increase the total biomass production. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/570104/1/document_570104.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1007/s00442-012-2526-2 10.1007/s00442-012-2526-2 info:eu-repo/semantics/altIdentifier/doi/10.1007/s00442-012-2526-2 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1007/s00442-012-2526-2 |
institution |
CIRAD FR |
collection |
DSpace |
country |
Francia |
countrycode |
FR |
component |
Bibliográfico |
access |
En linea |
databasecode |
dig-cirad-fr |
tag |
biblioteca |
region |
Europa del Oeste |
libraryname |
Biblioteca del CIRAD Francia |
language |
eng |
topic |
K10 - Production forestière F62 - Physiologie végétale - Croissance et développement F40 - Écologie végétale Eucalyptus grandis Acacia mangium forêt tropicale plantation forestière culture en mélange monoculture diversification rendement des cultures biomasse racine adventive compétition végétale absorption de substances nutritives sol tropical teneur en eau du sol http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_42 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_4871 http://aims.fao.org/aos/agrovoc/c_4915 http://aims.fao.org/aos/agrovoc/c_2344 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_24812 http://aims.fao.org/aos/agrovoc/c_35264 http://aims.fao.org/aos/agrovoc/c_5273 http://aims.fao.org/aos/agrovoc/c_7978 http://aims.fao.org/aos/agrovoc/c_7208 http://aims.fao.org/aos/agrovoc/c_1070 K10 - Production forestière F62 - Physiologie végétale - Croissance et développement F40 - Écologie végétale Eucalyptus grandis Acacia mangium forêt tropicale plantation forestière culture en mélange monoculture diversification rendement des cultures biomasse racine adventive compétition végétale absorption de substances nutritives sol tropical teneur en eau du sol http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_42 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_4871 http://aims.fao.org/aos/agrovoc/c_4915 http://aims.fao.org/aos/agrovoc/c_2344 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_24812 http://aims.fao.org/aos/agrovoc/c_35264 http://aims.fao.org/aos/agrovoc/c_5273 http://aims.fao.org/aos/agrovoc/c_7978 http://aims.fao.org/aos/agrovoc/c_7208 http://aims.fao.org/aos/agrovoc/c_1070 |
spellingShingle |
K10 - Production forestière F62 - Physiologie végétale - Croissance et développement F40 - Écologie végétale Eucalyptus grandis Acacia mangium forêt tropicale plantation forestière culture en mélange monoculture diversification rendement des cultures biomasse racine adventive compétition végétale absorption de substances nutritives sol tropical teneur en eau du sol http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_42 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_4871 http://aims.fao.org/aos/agrovoc/c_4915 http://aims.fao.org/aos/agrovoc/c_2344 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_24812 http://aims.fao.org/aos/agrovoc/c_35264 http://aims.fao.org/aos/agrovoc/c_5273 http://aims.fao.org/aos/agrovoc/c_7978 http://aims.fao.org/aos/agrovoc/c_7208 http://aims.fao.org/aos/agrovoc/c_1070 K10 - Production forestière F62 - Physiologie végétale - Croissance et développement F40 - Écologie végétale Eucalyptus grandis Acacia mangium forêt tropicale plantation forestière culture en mélange monoculture diversification rendement des cultures biomasse racine adventive compétition végétale absorption de substances nutritives sol tropical teneur en eau du sol http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_42 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_4871 http://aims.fao.org/aos/agrovoc/c_4915 http://aims.fao.org/aos/agrovoc/c_2344 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_24812 http://aims.fao.org/aos/agrovoc/c_35264 http://aims.fao.org/aos/agrovoc/c_5273 http://aims.fao.org/aos/agrovoc/c_7978 http://aims.fao.org/aos/agrovoc/c_7208 http://aims.fao.org/aos/agrovoc/c_1070 Laclau, Jean-Paul Nouvellon, Yann Reine, Caroline De Moraes Gonçalves, Jose Leonardo Krusche, Alex Vladimir Jourdan, Christophe Le Maire, Guerric Bouillet, Jean-Pierre Mixing Eucalyptus and Acacia trees leads to fine root over-yielding and vertical segregation between species |
description |
The consequences of diversity on belowground processes are still poorly known in tropical forests. The distributions of very fine roots (diameter\1 mm) and fine roots (diameter \3 mm) were studied in a randomized block design close to the harvest age of fast-growing plantations. A replacement series was set up in Brazil with mono-specific Eucalyptus grandis (100E) and Acacia mangium (100A) stands and a mixture with the same stocking density and 50 % of each species (50A:50E). The total fine root (FR) biomass down to a depth of 2 m was about 27 % higher in 50A:50E than in 100A and 100E. Fine root over-yielding in 50A:50E resulted from a 72 % rise in E. grandis fine root biomass per tree relative to 100E, whereas A. mangium FR biomass per tree was 17 % lower than in 100A. Mixing A. mangium with E. grandis trees led to a drop in A. mangium FR biomass in the upper 50 cm of soil relative to 100A, partially balanced by a rise in deep soil layers. Our results highlight similarities in the effects of directional resources on leaf and FR distributions in the mixture, with A. mangium leaves below the E. grandis canopy and a low density of A. mangium fine roots in the resource-rich soil layers relative to monospecific stands. The vertical segregation of resource-absorbing organs did not lead to niche complementarity expected to increase the total biomass production. |
format |
article |
topic_facet |
K10 - Production forestière F62 - Physiologie végétale - Croissance et développement F40 - Écologie végétale Eucalyptus grandis Acacia mangium forêt tropicale plantation forestière culture en mélange monoculture diversification rendement des cultures biomasse racine adventive compétition végétale absorption de substances nutritives sol tropical teneur en eau du sol http://aims.fao.org/aos/agrovoc/c_2693 http://aims.fao.org/aos/agrovoc/c_42 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_4871 http://aims.fao.org/aos/agrovoc/c_4915 http://aims.fao.org/aos/agrovoc/c_2344 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_24812 http://aims.fao.org/aos/agrovoc/c_35264 http://aims.fao.org/aos/agrovoc/c_5273 http://aims.fao.org/aos/agrovoc/c_7978 http://aims.fao.org/aos/agrovoc/c_7208 http://aims.fao.org/aos/agrovoc/c_1070 |
author |
Laclau, Jean-Paul Nouvellon, Yann Reine, Caroline De Moraes Gonçalves, Jose Leonardo Krusche, Alex Vladimir Jourdan, Christophe Le Maire, Guerric Bouillet, Jean-Pierre |
author_facet |
Laclau, Jean-Paul Nouvellon, Yann Reine, Caroline De Moraes Gonçalves, Jose Leonardo Krusche, Alex Vladimir Jourdan, Christophe Le Maire, Guerric Bouillet, Jean-Pierre |
author_sort |
Laclau, Jean-Paul |
title |
Mixing Eucalyptus and Acacia trees leads to fine root over-yielding and vertical segregation between species |
title_short |
Mixing Eucalyptus and Acacia trees leads to fine root over-yielding and vertical segregation between species |
title_full |
Mixing Eucalyptus and Acacia trees leads to fine root over-yielding and vertical segregation between species |
title_fullStr |
Mixing Eucalyptus and Acacia trees leads to fine root over-yielding and vertical segregation between species |
title_full_unstemmed |
Mixing Eucalyptus and Acacia trees leads to fine root over-yielding and vertical segregation between species |
title_sort |
mixing eucalyptus and acacia trees leads to fine root over-yielding and vertical segregation between species |
url |
http://agritrop.cirad.fr/570104/ http://agritrop.cirad.fr/570104/1/document_570104.pdf |
work_keys_str_mv |
AT laclaujeanpaul mixingeucalyptusandacaciatreesleadstofinerootoveryieldingandverticalsegregationbetweenspecies AT nouvellonyann mixingeucalyptusandacaciatreesleadstofinerootoveryieldingandverticalsegregationbetweenspecies AT reinecaroline mixingeucalyptusandacaciatreesleadstofinerootoveryieldingandverticalsegregationbetweenspecies AT demoraesgoncalvesjoseleonardo mixingeucalyptusandacaciatreesleadstofinerootoveryieldingandverticalsegregationbetweenspecies AT kruschealexvladimir mixingeucalyptusandacaciatreesleadstofinerootoveryieldingandverticalsegregationbetweenspecies AT jourdanchristophe mixingeucalyptusandacaciatreesleadstofinerootoveryieldingandverticalsegregationbetweenspecies AT lemaireguerric mixingeucalyptusandacaciatreesleadstofinerootoveryieldingandverticalsegregationbetweenspecies AT bouilletjeanpierre mixingeucalyptusandacaciatreesleadstofinerootoveryieldingandverticalsegregationbetweenspecies |
_version_ |
1792498507321442304 |