Regeneração natural em uma área de caatinga situada no município de Pombal – PB.

Abstract

Although it is one of the most heterogeneous Brazilian biomes and less known, the Savanna or estepic Savanna as it is known, is found under strong antropism. Being like this, the researches accomplished on the same it is serving as constructive information for the conservation of this biological patrimony. The present work had for objective to accomplish the rising of the natural regeneration of the component arbustiva/arboreous in an área of located savanna in the municipal of Pombal - PB, located in Sao Joao Farm (6o42'10 " latitude South 37o45'15 " longitude West) to 184 m of altitude. The climate is AW' (hot and humid). For the sampling of the natural regeneration 25 sub-portions of 5x5m were already implanted in portions of 20x20m existent in the study peace, distributed in a systematic way and respecting a distance of 25m among the sub-units, totaling 625m: of área showed. Later took peace the calculations of the parameters phytosociologycal and the individuais' similarity florístic. They were showed 267 individuais, belonging to 7 families, ll goods and 13 species, where the families Euphorbiaceae and Mimosaceae were the most representative in the área with four three species respectively. The specie Crofon sondeHant/s Mü#. Arg, stood out of the others for being the only present in all the sub-units, presenting the largest value of importance and of total natural regeneration among the species. Analyzing the diversity, a poor pattern was verified and that needs cares to increase your solemnity-recovery potential and to continue existing for future generations.