%0 Journal Article
%T Comparison of biotic and abiotic parameters between a native secondary forest fragment and a Pinus taeda L. reforestation Compara  o de parametros bi車ticos e abi車ticos entre fragmento de floresta secund芍ria nativa e um reflorestamento de Pinus taeda L.
%A Talita Parpinelli Ferracin
%A Val谷ria Teodoro da Silva
%A Paulo Souza Medri
%A Edmilson Bianchini
%J Semina : Ci那ncias Biol車gicas e da Sa迆de
%D 2010
%I Universidade Estadual de Londrina
%X The substitution of natural forests for commercial forest plantations can be as damaging as farming or urban occupation. However, studies on natural regeneration in these areas show results in the development of native species in the understory, suggesting a successional process in favor of restoring biodiversity as well as an alternative forrestoration. This work aimed at comparing biotic and abiotic parameters between native secondary forest fragments and Pinus taeda reforestation. The study sites are located at Klabin Ecological Park, Monte Alegre Farm, Tel那maco Borba, Paran芍. The following biotic data were evaluated: total height, diameter at breast height (DBH - 1.30 m above the ground) and basal area (BA), in tree species with DBH ≡ 2.5 cm. The following abiotic data were also evaluated: pH, soil compaction, herb cover, canopy cover, litter thickness, air temperature, and relative humidity. Most parameters differed between pine reforestation and secondary forest, such as pH and soil compaction, canopy cover, herb presence and the size structure of vegetation (diameter and height). It was also observed a low regeneration in reforestation, evidenced by the difference in the basal area. However, there was regeneration in pine reforestation, suggesting that, over time, there will be an increase in the regeneration of the native vegetation, increasing the wealth of species and the structural complexity of the vegetation. A substitui  o das florestas naturais por plantios florestais comerciais, pode ser t o prejudicial quanto a agricultura ou a ocupa  o urbana. Por谷m, estudos sobre regenera  o natural nessas 芍reas, apresentam resultados no desenvolvimento de esp谷cies nativas no sub-bosque, sugerindo um processo sucessional favor芍vel 角 recupera  o da biodiversidade e tamb谷m uma alternativa para a restaura  o. Este estudo teve como objetivo comparar parametros bi車ticos e abi車ticos entre fragmento de floresta secund芍ria nativa e reflorestamento com Pinus taeda. O trabalho foi realizado no Parque Ecol車gico da Klabin, Fazenda Monte Alegre, Tel那maco Borba, Paran芍. Foram avaliados dados bi車ticos (altura total, diametro 角 altura do peito (DAP - 1,30 m do solo) e 芍rea basal (AB), das esp谷cies arb車reas com DAP ≡ 2,5 cm) e dados abi車ticos ( pH e compacta  o do solo, cobertura de herb芍ceas, cobertura de dossel, espessura da serapilheira, temperatura e umidade relativa do ar). A maioria dos parametros diferiu entre o reflorestamento de pinus e a floresta secund芍ria, como pH e compacta  o do solo, cobertura do dossel, presen a de herb芍ceas e tamb谷m a estrutura de tam
%K Estrutura florestal
%K Parametros bi車ticos e abi車ticos
%K Reflorestamento de Pinus taeda.
%K Regenera  o do sub-bosque.
%U http://www.uel.br/revistas/uel/index.php/seminabio/article/view/8789