Eucalyptus Plantations in the equatorial zone, on the coastal plains of the Congo
43 000 hectares of eucalyptus clonal plantations have been created around Pointe-Noire. Soils in the area are sandy and have limited nutrients, making them prone to degradation. Ensuring sustained productivity of these plantations without adverse impact on the soil is a research priority. Two trials of replanting and silviculture at the early stage of stand development are underway. Experiment 1 compares six kinds of treatments and their effects on the kind and amount of residue that remains after clear felling. Experiment 2 involves six blocks in which three litter treatments are crossed with three site preparation treatments. Accurate site and stand characterization prior to clear felling has been carried out for both experiments. The results of Experiment 1 are not yet available. Initial results in Experiment 2 at 11 months after planting show improved tree growth because of quicker release of nutrients into the soil when litter is burnt. Similarly, young trees respond better to subsoiling with three tines. However, in both cases these positive effects are no longer significant after 21 months.
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Subjects: | K10 - Production forestière, P30 - Sciences et aménagement du sol, plantation forestière, Eucalyptus, clone, sol sableux, biomasse, carence du sol, traitement du sol, productivité, durabilité, expérimentation, sylviculture, http://aims.fao.org/aos/agrovoc/c_3048, http://aims.fao.org/aos/agrovoc/c_2683, http://aims.fao.org/aos/agrovoc/c_1678, http://aims.fao.org/aos/agrovoc/c_6781, http://aims.fao.org/aos/agrovoc/c_926, http://aims.fao.org/aos/agrovoc/c_7166, http://aims.fao.org/aos/agrovoc/c_7203, http://aims.fao.org/aos/agrovoc/c_6210, http://aims.fao.org/aos/agrovoc/c_33560, http://aims.fao.org/aos/agrovoc/c_2758, http://aims.fao.org/aos/agrovoc/c_7071, http://aims.fao.org/aos/agrovoc/c_1811, |
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dig-cirad-fr-3919882024-01-27T23:55:10Z http://agritrop.cirad.fr/391988/ http://agritrop.cirad.fr/391988/ Eucalyptus Plantations in the equatorial zone, on the coastal plains of the Congo. Bouillet Jean-Pierre, Nzila J.D., Ranger Jacques, Laclau Jean-Paul, Nizinski Georges. 1999. In : Site management and productivity in tropical plantation forests. Workshop proceedings. Nambiar E.K.S. (ed.), Cossalter C. (ed.), Tiarks A. (ed.). Bogor : CIFOR, 13-21. Workshop on Site Management and Productivity in Tropical Plantation Forests, Pietermaritzburg, Afrique du Sud, 16 Février 1998/20 Février 1998. Eucalyptus Plantations in the equatorial zone, on the coastal plains of the Congo Bouillet, Jean-Pierre Nzila, J.D. Ranger, Jacques Laclau, Jean-Paul Nizinski, Georges eng 1999 CIFOR Site management and productivity in tropical plantation forests. Workshop proceedings K10 - Production forestière P30 - Sciences et aménagement du sol plantation forestière Eucalyptus clone sol sableux biomasse carence du sol traitement du sol productivité durabilité expérimentation sylviculture http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_2683 http://aims.fao.org/aos/agrovoc/c_1678 http://aims.fao.org/aos/agrovoc/c_6781 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_7166 http://aims.fao.org/aos/agrovoc/c_7203 http://aims.fao.org/aos/agrovoc/c_6210 http://aims.fao.org/aos/agrovoc/c_33560 http://aims.fao.org/aos/agrovoc/c_2758 http://aims.fao.org/aos/agrovoc/c_7071 Congo http://aims.fao.org/aos/agrovoc/c_1811 43 000 hectares of eucalyptus clonal plantations have been created around Pointe-Noire. Soils in the area are sandy and have limited nutrients, making them prone to degradation. Ensuring sustained productivity of these plantations without adverse impact on the soil is a research priority. Two trials of replanting and silviculture at the early stage of stand development are underway. Experiment 1 compares six kinds of treatments and their effects on the kind and amount of residue that remains after clear felling. Experiment 2 involves six blocks in which three litter treatments are crossed with three site preparation treatments. Accurate site and stand characterization prior to clear felling has been carried out for both experiments. The results of Experiment 1 are not yet available. Initial results in Experiment 2 at 11 months after planting show improved tree growth because of quicker release of nutrients into the soil when litter is burnt. Similarly, young trees respond better to subsoiling with three tines. However, in both cases these positive effects are no longer significant after 21 months. conference_item info:eu-repo/semantics/conferenceObject Conference info:eu-repo/semantics/closedAccess |
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K10 - Production forestière P30 - Sciences et aménagement du sol plantation forestière Eucalyptus clone sol sableux biomasse carence du sol traitement du sol productivité durabilité expérimentation sylviculture http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_2683 http://aims.fao.org/aos/agrovoc/c_1678 http://aims.fao.org/aos/agrovoc/c_6781 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_7166 http://aims.fao.org/aos/agrovoc/c_7203 http://aims.fao.org/aos/agrovoc/c_6210 http://aims.fao.org/aos/agrovoc/c_33560 http://aims.fao.org/aos/agrovoc/c_2758 http://aims.fao.org/aos/agrovoc/c_7071 http://aims.fao.org/aos/agrovoc/c_1811 K10 - Production forestière P30 - Sciences et aménagement du sol plantation forestière Eucalyptus clone sol sableux biomasse carence du sol traitement du sol productivité durabilité expérimentation sylviculture http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_2683 http://aims.fao.org/aos/agrovoc/c_1678 http://aims.fao.org/aos/agrovoc/c_6781 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_7166 http://aims.fao.org/aos/agrovoc/c_7203 http://aims.fao.org/aos/agrovoc/c_6210 http://aims.fao.org/aos/agrovoc/c_33560 http://aims.fao.org/aos/agrovoc/c_2758 http://aims.fao.org/aos/agrovoc/c_7071 http://aims.fao.org/aos/agrovoc/c_1811 |
spellingShingle |
K10 - Production forestière P30 - Sciences et aménagement du sol plantation forestière Eucalyptus clone sol sableux biomasse carence du sol traitement du sol productivité durabilité expérimentation sylviculture http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_2683 http://aims.fao.org/aos/agrovoc/c_1678 http://aims.fao.org/aos/agrovoc/c_6781 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_7166 http://aims.fao.org/aos/agrovoc/c_7203 http://aims.fao.org/aos/agrovoc/c_6210 http://aims.fao.org/aos/agrovoc/c_33560 http://aims.fao.org/aos/agrovoc/c_2758 http://aims.fao.org/aos/agrovoc/c_7071 http://aims.fao.org/aos/agrovoc/c_1811 K10 - Production forestière P30 - Sciences et aménagement du sol plantation forestière Eucalyptus clone sol sableux biomasse carence du sol traitement du sol productivité durabilité expérimentation sylviculture http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_2683 http://aims.fao.org/aos/agrovoc/c_1678 http://aims.fao.org/aos/agrovoc/c_6781 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_7166 http://aims.fao.org/aos/agrovoc/c_7203 http://aims.fao.org/aos/agrovoc/c_6210 http://aims.fao.org/aos/agrovoc/c_33560 http://aims.fao.org/aos/agrovoc/c_2758 http://aims.fao.org/aos/agrovoc/c_7071 http://aims.fao.org/aos/agrovoc/c_1811 Bouillet, Jean-Pierre Nzila, J.D. Ranger, Jacques Laclau, Jean-Paul Nizinski, Georges Eucalyptus Plantations in the equatorial zone, on the coastal plains of the Congo |
description |
43 000 hectares of eucalyptus clonal plantations have been created around Pointe-Noire. Soils in the area are sandy and have limited nutrients, making them prone to degradation. Ensuring sustained productivity of these plantations without adverse impact on the soil is a research priority. Two trials of replanting and silviculture at the early stage of stand development are underway. Experiment 1 compares six kinds of treatments and their effects on the kind and amount of residue that remains after clear felling. Experiment 2 involves six blocks in which three litter treatments are crossed with three site preparation treatments. Accurate site and stand characterization prior to clear felling has been carried out for both experiments. The results of Experiment 1 are not yet available. Initial results in Experiment 2 at 11 months after planting show improved tree growth because of quicker release of nutrients into the soil when litter is burnt. Similarly, young trees respond better to subsoiling with three tines. However, in both cases these positive effects are no longer significant after 21 months. |
format |
conference_item |
topic_facet |
K10 - Production forestière P30 - Sciences et aménagement du sol plantation forestière Eucalyptus clone sol sableux biomasse carence du sol traitement du sol productivité durabilité expérimentation sylviculture http://aims.fao.org/aos/agrovoc/c_3048 http://aims.fao.org/aos/agrovoc/c_2683 http://aims.fao.org/aos/agrovoc/c_1678 http://aims.fao.org/aos/agrovoc/c_6781 http://aims.fao.org/aos/agrovoc/c_926 http://aims.fao.org/aos/agrovoc/c_7166 http://aims.fao.org/aos/agrovoc/c_7203 http://aims.fao.org/aos/agrovoc/c_6210 http://aims.fao.org/aos/agrovoc/c_33560 http://aims.fao.org/aos/agrovoc/c_2758 http://aims.fao.org/aos/agrovoc/c_7071 http://aims.fao.org/aos/agrovoc/c_1811 |
author |
Bouillet, Jean-Pierre Nzila, J.D. Ranger, Jacques Laclau, Jean-Paul Nizinski, Georges |
author_facet |
Bouillet, Jean-Pierre Nzila, J.D. Ranger, Jacques Laclau, Jean-Paul Nizinski, Georges |
author_sort |
Bouillet, Jean-Pierre |
title |
Eucalyptus Plantations in the equatorial zone, on the coastal plains of the Congo |
title_short |
Eucalyptus Plantations in the equatorial zone, on the coastal plains of the Congo |
title_full |
Eucalyptus Plantations in the equatorial zone, on the coastal plains of the Congo |
title_fullStr |
Eucalyptus Plantations in the equatorial zone, on the coastal plains of the Congo |
title_full_unstemmed |
Eucalyptus Plantations in the equatorial zone, on the coastal plains of the Congo |
title_sort |
eucalyptus plantations in the equatorial zone, on the coastal plains of the congo |
publisher |
CIFOR |
url |
http://agritrop.cirad.fr/391988/ |
work_keys_str_mv |
AT bouilletjeanpierre eucalyptusplantationsintheequatorialzoneonthecoastalplainsofthecongo AT nzilajd eucalyptusplantationsintheequatorialzoneonthecoastalplainsofthecongo AT rangerjacques eucalyptusplantationsintheequatorialzoneonthecoastalplainsofthecongo AT laclaujeanpaul eucalyptusplantationsintheequatorialzoneonthecoastalplainsofthecongo AT nizinskigeorges eucalyptusplantationsintheequatorialzoneonthecoastalplainsofthecongo |
_version_ |
1792491552533118976 |