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Fragmentation patterns and systematic transitions of the forested landscape in the upper Amazon region, Ecuador 1990–2008

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Abstract

The analysis of the systematic transitions in the forested landscape and the study of the forest fragmentation patterns allow us to deepen our understanding of the changes in the vegetation ground cover. The importance of knowing the intricate patterns of the land usage of the upper basin of the Amazon region is widely recognized. This zone is one of the most diverse biological areas in the world, is home to large areas of mature tropical cloud forest and demonstrates high probabilities of stable climatic conditions in light of global warming. The research quantified systematic transitions through the “loss” and “gain” of the different categories of landscape during the eighteen-year study period of the Ecuadorian Amazon Region (EAR), the forest fragmentation patterns were also analyzed based on a set of indicators. Therefore, with respect to the entirety of the landscape, the results registered for the ground coverage in forested areas during the first period (1990–2000), show a decrease of 6.99% and an increase of 0.68%; and during the second period (2000–2008), show a decrease of 3.99% and an increase of 2.14%. It demonstrated that forest and agricultural areas tended to replace or be replaced by herbaceous vegetation faster than expected fortuitously. Finally, the indices of fragmentation signaled intense changes during the 1990–2000 period with a reduction during the period 2000–2008. Percentages registered in the Largest Patch Index (LPI) were between 79.58%; 52.39% and 49.99% respectively; while the Patch Density (PD) varied between 0.04; 0.06 and 0.07. This suggests the propensity of forest cover to remain intact. The results of this investigation suggest a tendency towards stability in Ecuador’s Amazon landscape. Within the framework for development and management of this area, the tendency is natural regeneration. This permits a consolidation of the conservation, reforestation, forestation and agricultural forestry plans, programs and systems for the protected areas in EAR.

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Authors and Affiliations

  1. Departamento de Ingeniería Forestal, E.T.S.I.A.M., Universidad de Córdoba, Campus de Excelencia Internacional Agroalimentario (ceiA3), ES-14071, Córdoba, Spain

    Santiago Bonilla-Bedoya, Juan R. Molina & Miguel A. Herrera-Machuca

  2. Secretaria Nacional de Educación Superior, Ciencia, Tecnología e Innovación del Ecuador, Whymper E7-37 y Alpallana, Quito, Ecuador

    Santiago Bonilla-Bedoya

  3. Departamento de Engenharia Florestal Universidade Federal do Espírito Santo, Alegre-ES, Brazil

    José E. Macedo-Pezzopane

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  1. Santiago Bonilla-Bedoya
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  2. Juan R. Molina
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  3. José E. Macedo-Pezzopane
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  4. Miguel A. Herrera-Machuca
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Correspondence to Santiago Bonilla-Bedoya.

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Fund project: This work was supported by the National Secretary of Higher Education, Science, Technology and Innovation of Ecuador

Corresponding editor: Chai Ruihai

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Bonilla-Bedoya, S., Molina, J.R., Macedo-Pezzopane, J.E. et al. Fragmentation patterns and systematic transitions of the forested landscape in the upper Amazon region, Ecuador 1990–2008. Journal of Forestry Research 25, 301–309 (2014). https://doi.org/10.1007/s11676-013-0419-9

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