Effects of site management on Eucalyptus plantations in the equatorial zone, on the coastal plains of the Congo
Sustainability is a research priority for clonal eucalypt plantations planted on very sandy and poor soils in the Congo. Results from a study using cloned Eucalyptus hybrids conducted since 1997 show: (1) a marked depressive effect on tree growth of rernoving slash and tree biomass after harvest; (2) a high risk of nutrient leaching in the first year after harvesting linked to, the high rate of litter decomposition; (3) a temporary starter effect of litter burning but a depressive effect in the medium term; and (4) a slow but lasting impact of burying litter. It is concluded that site management must conserve a maximum amount of organic matter to ensure a sustainable production system. Debarking and retention on site of the upper stem and other harvesting slash without burning is recommended.
| Main Authors: | , , , |
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| Format: | conference_item biblioteca |
| Language: | eng |
| Published: |
CIFOR
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| Subjects: | K10 - Production forestière, Eucalyptus, hybride, type de sol, impact sur l'environnement, http://aims.fao.org/aos/agrovoc/c_2683, http://aims.fao.org/aos/agrovoc/c_3707, http://aims.fao.org/aos/agrovoc/c_7204, http://aims.fao.org/aos/agrovoc/c_24420, http://aims.fao.org/aos/agrovoc/c_1811, |
| Online Access: | http://agritrop.cirad.fr/477701/ |
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| Summary: | Sustainability is a research priority for clonal eucalypt plantations planted on very sandy and poor soils in the Congo. Results from a study using cloned Eucalyptus hybrids conducted since 1997 show: (1) a marked depressive effect on tree growth of rernoving slash and tree biomass after harvest; (2) a high risk of nutrient leaching in the first year after harvesting linked to, the high rate of litter decomposition; (3) a temporary starter effect of litter burning but a depressive effect in the medium term; and (4) a slow but lasting impact of burying litter. It is concluded that site management must conserve a maximum amount of organic matter to ensure a sustainable production system. Debarking and retention on site of the upper stem and other harvesting slash without burning is recommended. |
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