OmejaChapmanObua2009

Référence

Omeja, P.A., Chapman, C.A. and Obua, J. (2009) Enrichment planting does not improve tree restoration when compared with natural regeneration in a former pine plantation in Kibale National Park, Uganda. African Journal of Ecology, 47(4):650-657. (Scopus )

Résumé

Given the high rates of deforestation and subsequent land abandonment, there are increasing calls to reforest degraded lands; however, many areas are in a state of arrested succession. Plantations can break arrested succession and the sale of timber can pay for restoration efforts. However, if the harvest damages native regeneration, it may be necessary to intervene with enrichment planting. Unfortunately, it is not clear when intervention is necessary. Here, we document the rate of biomass accumulation of planted seedlings relative to natural regeneration in a harvested plantation in Kibale National Park, Uganda. We established two 2-ha plots and in one, we planted 100 seedlings of each of four native species, and we monitored all tree regeneration in this area and the control plot. After 4 years, naturally regenerating trees were much taller, larger and more common than the planted seedlings. Species richness and two nonparametric estimators of richness were comparable between the plots. The cumulative biomass of planted seedlings accounted for 0.04% of the total above-ground tree biomass. The use of plantations facilitated the growth of indigenous trees, and enrichment planting subsequent to harvesting was not necessary to obtain a rich tree community with a large number of new recruits. © 2009 Blackwell Publishing Ltd.

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@ARTICLE { OmejaChapmanObua2009,
    AUTHOR = { Omeja, P.A. and Chapman, C.A. and Obua, J. },
    TITLE = { Enrichment planting does not improve tree restoration when compared with natural regeneration in a former pine plantation in Kibale National Park, Uganda },
    JOURNAL = { African Journal of Ecology },
    YEAR = { 2009 },
    VOLUME = { 47 },
    PAGES = { 650--657 },
    NUMBER = { 4 },
    __MARKEDENTRY = { [Luc:6] },
    ABSTRACT = { Given the high rates of deforestation and subsequent land abandonment, there are increasing calls to reforest degraded lands; however, many areas are in a state of arrested succession. Plantations can break arrested succession and the sale of timber can pay for restoration efforts. However, if the harvest damages native regeneration, it may be necessary to intervene with enrichment planting. Unfortunately, it is not clear when intervention is necessary. Here, we document the rate of biomass accumulation of planted seedlings relative to natural regeneration in a harvested plantation in Kibale National Park, Uganda. We established two 2-ha plots and in one, we planted 100 seedlings of each of four native species, and we monitored all tree regeneration in this area and the control plot. After 4 years, naturally regenerating trees were much taller, larger and more common than the planted seedlings. Species richness and two nonparametric estimators of richness were comparable between the plots. The cumulative biomass of planted seedlings accounted for 0.04% of the total above-ground tree biomass. The use of plantations facilitated the growth of indigenous trees, and enrichment planting subsequent to harvesting was not necessary to obtain a rich tree community with a large number of new recruits. © 2009 Blackwell Publishing Ltd. },
    ADDRESS = { Wildlife Conservation Society, 2300 Southern Boulevard, Bronx, NY 10460, United States },
    COMMENT = { Cited By (since 1996):8 Export Date: 14 February 2014 Source: Scopus },
    KEYWORDS = { Arrested succession, Enrichment planting, Kibale National Park, Pine plantations, Regeneration, Restoration },
    OWNER = { Luc },
    TIMESTAMP = { 2014.02.14 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-73149120956&partnerID=40&md5=8169a70809887069f475e6bbbfe49086 },
}

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