Deadwood in logged-over Dipterocarp forests of Borneo

Rozak Andes, Sist Plinio, Rutishauser Ervan. 2016. Deadwood in logged-over Dipterocarp forests of Borneo. In : Tropical ecology and society reconciliating conservation and sustainable use of biodiversity. Program and abstracts. Plinio Sist (ed.), Stéphanie Carrière (ed.), Pia Parolin (ed.), Pierre-Michel Forget (ed.). ATBC. Storrs : ATBC, Résumé, p. 312. Annual Meeting of the Association for Tropical Biology and Conservation (ATBC 2016), Montpellier, France, 19 June 2016/23 June 2016.

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Page 312 de ATBC 2016-3.pdf

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Abstract : Deadwood is an important stock of carbon in logged-over Dipterocarp forests but still remains poorly studied. Here we present the study of deadwood in logged-over Dipterocarp forests using two common approaches: plot-based approach and line-intersect-based approach. We conducted our research in three sites which are forest logged in 2003, 2007, and 2010 within Hutansanggam Labanan Lestari (HLL) forest, a certified forest concessionaire in Indonesia. We established 1,500 m of transect line (broken down in 50 m section) for each site. As a reference, we established 47 10 m x 10 m subplot for three sites. All fallen deadwood with diameter > 10 cm were recorded. Our results shows that the mass of fallen deadwood resulted by line-intersect-based method was much higher in compare to plotbased method. The mass of fallen deadwood in plot-based study (44.563 ± 9.155 Mg/ha) was significantly different with the mass of fallen deadwood in line-intersect-based study (69.587 ± 8.079 Mg/ha). Furthermore, for the variability of deadwood, both methods show consistence results which is the variability in 2003 was lower than that in 2007 and 2010. Based on our data, in order to get coefficient of variation of 10%, we recommend the use of minimum 40 plots of 20 m x 20 m to estimate deadwood in logged-over Dipterocarp forests. (Texte intégral)

Classification Agris : K01 - Forestry - General aspects
U10 - Mathematical and statistical methods
P01 - Nature conservation and land resources
F60 - Plant physiology and biochemistry

Auteurs et affiliations

  • Rozak Andes, LIPI (IDN)
  • Sist Plinio, CIRAD-ES-UPR BSef (FRA)
  • Rutishauser Ervan, Carbofor-Expert (CHE)

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