Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: Floristic and structural recovery of a laurel forest community after clear-cutting: A 60 years chronosequence on La Palma (Canary Islands). | Ann. For. Sci. 64 2007 109-119 INRA EDP Sciences 2007 DOI forest 2006094 109 Original article Floristic and structural recovery of a laurel forest community after clear-cutting A 60 years chronosequence on La Palma Canary Islands Alfredo Manuel BERMÚDEZa José María FERNANDEZ-PALAClOSa Juana María GONZALEZ-MANCEBOb Jairo PATlNOb José Ramón ArEVALOa Rudiger OTTOa Juan Domingo DELGADOa c a Universidad de La Laguna Departamento de Ecología La Laguna Tenerife 38206 Spain b Universidad de La Laguna Departamento de Botánica La Laguna Tenerife 38206 Spain c Universidad de La Laguna Departamento de Fisica Básica La Laguna Tenerife 38206 Spain Received 19 June 2006 accepted 31 August 2006 Abstract - We analyzed a post-clearcut chronosequence to 60 years after harvesting in the laurel forest of La Palma island Canarian Archipelago to determine the recovery of the stands with respect to species composition richness life strategies and structural parameters of the canopy. Multivariate analysis showed that exotic species as well as annual ruderal species were confined to early-successional stages while native perennials typical of laurel forests dominated the late-successional stages. Total species richness decreased significantly with time after clear-cutting. The relative fast recovery of understory native species may be due to low forest floor disturbance during harvesting. Shade-intolerant pioneer pioneer-remnant and shade-tolerant late-successional species were the main life strategies of native tree species. Most structural parameters showed a continuous and monotonic increase basal area biomass or decrease density percentage of photosynthetic biomass during succession. Once clear-cutting here performed with an interval of 8 years is abandoned the recovery of the laurel forest seems possible due to careful logging that protects the soil and a rapid asexual regeneration of native tree species revealing this to be a sustainable management practice. forest .
