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Revista mexicana de ciencias agrícolas
Print version ISSN 2007-0934
Abstract
GONZALEZ-HERNANDEZ, Lauro; SOL-SANCHEZ, Ángel; PEREZ-VAZQUEZ, Arturo and OBRADOR-OLAN, José J.. Survival and growth of black mangrove (Avicennia germinans L.) in reforested plantations and natural regeneration. Rev. Mex. Cienc. Agríc [online]. 2016, vol.7, n.spe14, pp.2769-2782. ISSN 2007-0934.
Abstract
The objective of this research was to quantify the survival and growth of black mangrove (Avicennia germinans L.) in reforested plantations in an area of 50 ha; the study was carried out from 2013 to 2014, in the mangrove ecosystem located in the Ejido “Las Coloradas” Cárdenas, Tabasco. Three environments were delimited (1: flooded zone Zi; low tide zone Zmb and 3: free-flowing zone Zlfa). For monitoring three sites of 500 m2 per environment were randomly located. The evaluated variables were survival, plant height (h), crown area (sc), stem diameter (dc), number and height of pneumatophores (nn, an). The evaluation found statistically significant differences in survival rate between environments, which has two groups (A and B) with alpha= 0.05. The group A is Zmb with 67.7% survival, and group B to Zi and Zlfa with 0% and 5.5% survival, respectively. Growth recorded no significant statistical differences. Zmb from reforested plantation grew to (h: 27 cm, sc1: 16.3 cm, sc2: 15.9 cm, dc: 0.5 cm, an: 2.8 cm and nn: 13). Zlfa grew to (h: 7.2 cm, sc1: 13.3 cm, sc2: 8.7 cm, dc: 0.2 cm, an: 4.3 and nn: 5.1). Natural regeneration in Zmb showed a growth of (h: 30.1 cm, sc1: 21.8 cm, sc2: 21.3 cm, dc: 0.5 cm, an: 2.2 cm and nn: 5.3 cm). Zmb promotes survival and growth of black mangrove in reforested plantations and natural regeneration of populations.
Keywords : environment; mortality; pneumatophores; sunlight; tide.