Initial performance of 50 species of trees planted in a restoration of the Colombian Tropical Dry Forest: influence of the scenario and the restoration strategy

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Authors:
Andrés Avella Muñoz. 1 , Francisco Torres Romero2 , Armando Villota2 , Erik Ibarra2

Publication Date:
2021

Abstract/Summary:
Monitoring is a key component of ecological restoration projects, it is required to demonstrate the effectiveness of management strategies, and to make adaptive management decisions. Based on ecological diagnostics of a degraded Tropical Dry Forest TDF in Colombia, a pilot project implemented and monitoring six restoration strategies at different scenarios like degraded pastureland, shrubs, and secondary forests. After one and a half years we analyzed the initial performance of 50 species that were planted. Survival and growth (High and Diameter) were prioritized parameters for monitoring strategies. Of the 21,709 individuals monitored, the survival of all species was higher than 75%; Ochroma pyramidale, Jacaranda caucana, Ceiba pentandra, Senna spectabilis and Gliricidia sepium presented the best performances in increasing Height and diameter. Mixed models were made that allowed to identify that the different restoration scenarios and environmental variables have significant effects on the growth of at least 30 species. Significant differences were found in the growth of typical species of conserved forests such as C. pentandra, Trichilli hirta and Enterolobium cyclocarpum when they were established under canopy; other tree species such as Albizia guachapele, Casearia corymbosa and Jacaranda caucana responded better to restoration scenarios that presented full exposure, perhaps due to their functional characteristics of acquisitive species. These results make it possible to identify the conditions and restoration strategies under various TDF species to obtain the best performances and thus improve the efficiency of restoration programs of one of the most degraded ecosystems in the tropics.

Resource Type:
Conference Presentation, SER2021

Pre-approved for CECs under SER's CERP program

Source:
2021