Characterization of tree species in agroecosystems of the Guisa integral conservation and soil improvement polygon, Granma Characterization of tree species in agroecosystems of the Guisa integral conservation and soil improvement polygon, Granma

Abstract

With the objective of characterizing tree species, research was carried out in agroecosystems of the Demographic Polígono para la Conservación y Improvement del Suelo, el Agua y el Bosque, del municipio Guisa, Granma. To list the tree species present, rectangular plots of 20 x 25 m (500 m2) were randomly established. All arboreal individuals were inventoried at the museum sites. The species were classified according to their potential for use, category of presence and state of mildness. It is possible to know that 60 tree species belonging to 52 genera coexist, distributed among 28 botanical families. The best represented families were: Fabaceae with 11 species and 10 genera; Anacardiaceae with 4 species and 3 genera; Meliaceae and Sapotaceae. Endemism represented only 1.6% (1 species), although 7 are categorized as present, but predominantly indigenous, 37 naturalized, 5 non-indigenous but possibly naturalized, 10 widely cultivated and 1 occasionally cultivated on the ground. It was determined that 33.33% fell into some threat category: Protium cubense (Rose) Urb., endemic species categorized as Dangerous; Lysiloma sabicu Benth., Piscidia piscipula (L.) Sarg., Malpigia. glabra L. threatened species; Calycophyllum candidissimun (Vahl) DC., which is often threatened, is present in a greater number of species in the category of minor concern. There was a greater wealth of plants with a predominance of medicinal, wooden, food and ecological shade and ornamental functions. The demonstration polygon constitutes another measure for the conservation of in situ biological biodiversity, with functions and services associated with the ecosystems.