Floristic composition, structure and silvicultural condition of tree species in three land uses of the Tonantzín Agroecological Estate, Diriamba, Carazo-2017

Abstract

The Tonantzín agroecological farm located in the municipality of Carazo, contributes to the conservation of biodiversity, the objective of characterizing the floristic composition and silvicultural condition of the tree species present in three uses of the soil of the farm; secondary forest, gallery forest and silvopastoral system. The studied vegetation was divided into three categories of vegetation: ferns (> 10 cm DN), latizal (1.5 m high to 9.9 cm DN) and brinzal (0.30 m high to 1.5 m high). The study was carried out through the double sampling methodology of with dsing an "L" shaped design, in a sampled area of 1.92 ha. using rectangular and square plots (600 m² were measured in plots, square was measured the latizal 100 m² category and the saplings were measured in 25 m square plots. According to the results, a total of 55 species were grouped in 29 families and 51 genera in the category of fustales, 21 families, 33 genera and 35 species in brinzales and 14 families, 21 genera and 23 species in the brinzal category. In fustales, a total of 261.45 trees per hectare were registered in secondary forest, 347 trees per hectare in gallery forest and 156.25 trees per hectare in the silvopastoral system. The distribution by diametric class and height of the tube tree forms "j inverted" where regeneration is the one that will replace the mature trees. On the other hand, 26.2 % of the trees have a straight shaft without damage or illness. Likewise, 66.5 % are free of lianas. The tree species with the greatest ecological importance (IVI) present in the soil uses are in secondary forest Guazuma ulmifolia, gallery forest Ceiba pentandra and silvopastoral system Enterolobium cyclocarpum.