Soil macrofauna in areas with different ages after Pinus patula clearcutting
In Andean high montane areas, the establishment of exotic tree forests changes the soil dynamics and its biodiversity. Soil macrofauna act as indicators of ecosystem successional processes, and may have an important role in ecological restoration processes after clearcutting exotic tree plantatio...
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| Formato: | article |
| Lenguaje: | EN ES |
| Publicado: |
Pontificia Universidad Javeriana
2018
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/e96920ff0c31433e8cf7c2ad091ce212 |
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| Sumario: | In Andean high montane areas, the establishment of exotic tree forests changes
the soil dynamics and its biodiversity. Soil macrofauna act as indicators
of ecosystem successional processes, and may have an important role in
ecological restoration processes after clearcutting exotic tree plantations. The
aim of the present study was to understand how soil macrofaunal assemblies
change in areas with different ages post clearcutting of Pinus patula, and to
identify the soil physico-chemical variables that better explain these variations.
The macrofauna in a high montane forest was evaluated along with that
of three areas with different ages post clearcutting: 0, 2.5, and 5 years
after clearcutting (Yac). The effect of soil physico-chemical variables on
macrofauna abundance was also evaluated. Macrofauna composition changed
after clearcutting. Macrofauna abundance, richness, and diversity were lower in
the 0 Yac area than in the other areas. Moreover, the macrofuna similarity to the
reference forest did not increase with the years after clearcutting. This is due to
the changes in soil characteristics, triggered by clearcutting. Slope, temperature,
bulk density, real density, loam, pH, P, Na and K were the soil variales with a
positive effect on the macrofauna abundance. These physico-chemical variables
should be considered when designing restoration plans for Andean forest
ecosystems. Moreover, Diplopoda, Coleoptera and Chilopoda might be useful
to monitor and evaluate restoration processes after Pinus spp. clearcutting,
because of their high abundance, diversity and relationship with environmental
conditions. |
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