Evaluación de las características dendrológicas de especies pioneras en área recuperada del centro de producción e investigación Pabloyacu, Moyobamba

• Autor: Alegria Rojas, Diana
• Formato: tesis de grado
• Fecha de Publicación: 2012
• Institución: Universidad Nacional de San Martin - Tarapoto
• Repositorio: UNSM-Institucional
• Lenguaje: español
• OAI Identifier: oai:repositorio.unsm.edu.pe:11458/171
• Enlace del recurso: http://hdl.handle.net/11458/171
• Nivel de acceso: acceso abierto
• Materia: Evaluación; características; dendrológicas; especies; pioneras; área; recuperada; centro; producción; investigación; Pabloyacu; Moyobamba

This research study was carried out in the Pabloyacu research and Production Center; belong to the San Martín National University, Ecology Faculty, Moyobamba district, Moyobamba province, San Martín Department. lt had as principal aim: To evaluate the dendroJogicas characteristics of the pioneering species of the area recovered of the Pabloyacu Center of Prod'uction and lnvestigation, and as specific aims: a) To identify the pioneering species in the area ofstudy. b) To determine the dendrologicas associations between sowed species and pioneering species. e) To determine the biometric characteristics of the pioneering species of the recovered area. d) To evaluate the influence of the soil in the development and growth of the pioneering species of the are a of study. e) To determine the environmental value of pioneering species in areas recovered of the Pabloyacu Center of Production and lnvestigation. The factors of study were constituted by ten sub plots, which consisted in the study of Dendrologico pioneer species, fur which it is used all1 the pioneer species, lt was estimated the diameter at breast height (DBH), Total height, Commercial Height, volume and total trade volume, basal area, the Value lndex of lmportance {lVI) and calculation of environmental value; it was also carried out analysis of soil (physical and chemical). All the information was gathered for the respective anatysis of office. This had as aim to develop and process the data from the field results: • There was the presence of 13 vegetable specíes pioneers i:dentffied' for the, predominant analysis, between them; the spedes: "Cetico" (Cecropia sciadophylla), "Chillica"' (Baccharis halimifolia), "Huamanzamana" (Jacaranda copaia), .. lndano" (Byrsonimia spicata), 11lngaina" (Myrsine sp), "'Mullaca" (CI.idemia heterophyll'a}, "Ocuera" (Vernonia patens), "Pichirina" (Vismia angusta), 11Picho Huayon (forked Siparuna}, "'TuUoquiro" (NN.IJ), due to his common name that is not easy to recognize in the l'ocation of his nomenclature, in addition the "Ucshaquiro" (Tachigali chrysophylla), "Warmi Warmi" (Didimopanax morototoni}, "Yana Ocuera" (Aparisthatios cordafun). • One concludes that the evaluated species, with regard to associations dendrológicas between pioneering species and sowed species:. we find an easy adjustment in secondary forests, in soils preferably dayey to slimy, slimy to sandy, with acid trend, fertile and well draineds, with low to medium stoniness, which are suitabte for their development and growth that allow the pioneer species colbnize a site as the first sttage of an ecolbgicall succession, and that they reach an average height between 8.109m in spedes sown and 10.047m in pioneering spedes with a DAP maximum of0.39m. • lt was determined that the biometric features assessed in the pioneer species have diameters according to ,fhe growth and development -of ,each species and it is concluded that the DAP average varíes between 0.025m in the "Ocuera" and 0.39m belonging to the "Ucshaquiro", a total average height of 10.04m and height of 8.85m commerda1 be~longing to the'" Cetico ". • · One concludes that the dass textura! of the soil analyzed of the calicatas 1 and 2 in the 'horizons A, B and C: presents a ground "Franco sandv dav" with an: average humidity of.49.43 % due to the .presence of the vegetation cover in the area, the average pH is 4.71 , That tums o':'t to be a very strongly acid soil due to the wash of the caJdum by means of the infiltration and. dragging that is given by the rainfall, influencing in a satisfactory way the growth and development of the "Cetico" that does that he presents a major lndex of Wea1th with of 8.37, and in the Huamansamana there being had the major lndex ofValue of lmportanre for being of preferenre for his habitat. • One determined that thé environmental valuation in function to the lndex of Wea1th, in the area of study, you spire her pioneeñng with major value·it is the Cetico with 8.37 and the Huamansamana with 8.29 that are located in the sub pl'ot N o 3, This is due to the number of pioneer species different accompanying it that in total there are 9 and to the amount of individuals of the same spedes that occurs in the sub plot and in regard to the Value lndex of lmportance, we have that the species is the most representative Huamansamana with the 97.34 %, the significanre relates to the number of indMduals evaluated that are 369. Key words: environmental valuation, pioneering species