Environmental and physical factors affecting the survival of seven forest species in the State of Mexico
DOI:
https://doi.org/10.29298/rmcf.v12i64.831Keywords:
Evaluation, forest plantations, Probit, restoration, survival, site variablesAbstract
This research aims to assess the effect of different environmental variables on the survival of the seven species most used for reforestation in the State of Mexico along the 1997-2003 period. The evaluation was implemented through a two-stage sampling procedure in 757 plantations. In the first stage the plantations to be evaluated were chosen throughout a completely random design. In the second stage, a set of sites of 100 m2 were systematically chosen in each selected plantation with a 5 % sampling intensity. Survival and a set of site variables were evaluated in each site. The analysis was performed through a Probit model by testing all combinations of different subsets of site and climate variables as independent variables. Results show low survival (38 %) in plantations, driven by low protection after plantations were established, the rapid conversion to agricultural land, as well as the disengagement between the environmental requirements of the species and the characteristics of the plantation sites. The effect of the environmental variables on each species is analyzed and discussed, and some suggestions for recording plantation information are highlighted.
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