Volumetry and survival of native and exotic species in the gypsun pole of Araripe, PE

Abstract

Nos setores industriais e comerciais da regi\ue3o do Araripe, em Pernambuco, a utiliza\ue7\ue3o de combust\uedveis lenhosos est\ue1 dirigida aos processos de desidrata\ue7\ue3o da gipsita e produ\ue7\ue3o de gesso em suas diferentes tecnologias. Dessa forma, o presente estudo teve como objetivo buscar op\ue7\uf5es para suprir a demanda por lenha no Polo Gesseiro do Araripe pernambucano, por meio da implanta\ue7\ue3o de povoamentos florestais com esp\ue9cies nativas e ex\uf3ticas. O experimento foi instalado na Esta\ue7\ue3o Experimental do Instituto Agr\uf4nomico de Pernambuco (IPA), utilizando nove esp\ue9cies, entre nativas e ex\uf3ticas: (Imburana \u2013 Amburana cearense (Allem\ue3o) A.C. Sm.; Angico \u2013 Anadenanthera colubrina (Vell.) Brenan var. cebil (Griseb.) Altschul; Jurema \u2013 Mimosa tenuiflora (Willd.) Poir.; Sabi\ue1 \u2013 Mimosa caesalpiniaefolia Benth.; Ac\ue1cia \u2013 Senna siamea (Lam.) H.S. Irwin & Barneby; Leucena \u2013 Leucaena leucocephala (Lam.) R. de Wit.; Algaroba \u2013 Prosopis juliflora (Sw.) D.C.; Ip\ueas \u2013 Tabebuia sp.1 e Tabebuia sp.2), em um delineamento inteiramente casualizado com diferentes n\ufameros de repeti\ue7\uf5es. Foram avaliados os seguintes par\ue2metros: volume em metro c\ufabico (m3) e sobreviv\ueancia. Com rela\ue7\ue3o ao volume em metro c\ufabico, o Sabi\ue1 teve a melhor produtividade. O Sabi\ue1 e a Jurema foram as esp\ue9cies mais pesadas. E em rela\ue7\ue3o \ue0 sobreviv\ueancia, Ip\uea 2 e Imburana tiveram as maiores mortalidades. Desta forma, o Sabi\ue1 e a Jurema s\ue3o as esp\ue9cies mais indicadas para a produ\ue7\ue3o de lenha em plantios comerciais homog\ueaneos na Chapada do Araripe em Pernambuco.In the industrial and commercial sectors of the Araripe Region in Pernambuco, Brazil, fire wood is the used in processes of dehydration and production of gypsum with different technologies. Thus, this study aimed to find alternatives to supply the demand of firewood in the Gypsun Pole of Araripe in Pernambuco through the implementation of forest with native and exotic species. The experiment was installed at the Experimental Station of the Agronomic Institute of Pernambuco (IPA), using nine species, both native and exotic: (Imburana - Amburana cearense (Allem\ue3o) A.C. Sm.; Angico - Anadenanthera colubrina (Vell.) Brenan var. cebil (Griseb.) Altschul; Jurema - Mimosa tenuiflora (Willd.) Poir.; Sabi\ue1 - Mimosa caesalpiniaefolia Benth.; Ac\ue1cia - Senna siamea (Lam.) H.S. Irwin & Barneby; Leucena - Leucaena leucocephala (Lam.) R. de Wit.; Algaroba - Prosopis juliflora (Sw.) D.C.; Ip\ueas - Tabebuia sp.1 e Tabebuia sp.2). The design was completely randomized with different numbers of replications. The following parameters were evaluated: volume in cubic meter (m3) and stereo meters (st) and survival. With regard to the volume in cubic meter, Sabia had the best production. The Jurema and the Sabi\ue1 were the heaviest species. In relation to survival, the Ip\uea 2 and the Imburana had the highest mortalities. Thus, the Sabi\ue1 and the Jurema are the species indicated for the production of wood in homogeneous commercial plantations in the Chapada Araripe in Pernambuco