Supervivencia y desarrollo de dos especies de Pinus en una reforestación de la Región Montaña de Guerrero

Forest ecosystems are essential for the planet; however, they are prone to anthropogenic disturbance. To counteract this trend,restoration practices such as reforestation are used, in order to recover degraded areas. The objective of the study was to evaluatethe development and survival of a reforestation in Chinameca, Atlamajalcingo del Monte, Guerrero. A plantation with species ofPinusayacahuite and Pinuspatula was carried out in a 784 m² plot, with the three-bolillo design at 2 m distance between plants,these were monitored every two months from the establishment of the experiment. A total of 150 plants were established in threeblocks of 25 seedlings per species. Survival was evaluated at 73 days until completing 257 days and the variables of basal diameter(mm), total height (cm) and crown area (m). The overall survival average was 79.99%; P.patulapresented a 85.33% survival whileP.ayacahuiteonly registered 74.66%. All the variables obtained were submitted to the analysis of variance (ANOVA) by speciesafter 8 months, where only significant differences were found in the development of height where P.patula reached 35.71 cm,while P.ayacahuite only registered 26.86 cm. It is concluded that P.patula is suitable to implement reforestation activities in the region.