How Natural Regeneration After Severe Disturbance Affects Ecosystem Services Provision of Andean Forest Soils at Contrasting Timescales

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Detalles Bibliográficos
Publicado en:	Forests vol. 16, no. 3 (2025), p. 456
Autor principal:	Ortiz, Juan
Otros Autores:	Panichini, Marcelo, Neira, Pablo, Henríquez-Castillo, Carlos, Gallardo Jara, Rocio E, Rodriguez, Rodrigo, Mutis, Ana, Ramos, Camila, Espejo, Winfred, Puc-Kauil, Ramiro, Zagal, Erik, Stolpe, Neal, Schoebitz, Mauricio, Sandoval, Marco, Dube, Francis
Publicado:	MDPI AG
Materias:	Southern Hemisphere South America Chile Understory Emissions Infiltration rate Soil properties Ecosystem services Aluminum Nutrient availability Organic carbon Land degradation Carbon dioxide Forest soils Forests Human influences Ecosystems Microbiomes Soils Regeneration Microorganisms Net losses Soil fertility Chemical properties Nutrient cycles Temperate forests Carbon cycle Penetration resistance Chusquea Environmental
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Descripción
Resumen:	Chile holds ~50% of temperate forests in the Southern Hemisphere, thus constituting a genetic–ecological heritage. However, intense anthropogenic pressures have been inducing distinct forest structural-regeneration patterns. Accordingly, we evaluated 22 soil properties at 0–5 and 5–20 cm depths in two protected sites, with similar perturbation records but contrasting post-disturbance regeneration stages: long-term secondary forest (~50 y) (SECFORST) (dominated by Chusquea sp.-understory) and a short-term forest after disturbance (~5 y) (FADIST) within a Nothofagus spp. forest to determine the potential of these soils to promote nutrient availability, water cycling, soil organic carbon (SOC) sequestration (CO2→SOC), and microbiome. Results detected 93 correlations (r ≥ 0.80); however, no significant differences (p < 0.05) in physical or chemical properties, except for infiltration velocity (+27.97%), penetration resistance (−23%), SOC (+5.64%), and % Al saturation (+5.64%) relative to SECFORST, and a consistent trend of suitable values 0–5 > 5–20 cm were estimated. The SOC→CO2 capacity reached 4.2 ± 0.5 (FADIST) and 2.7 ± 0.2 Mg C y−1 (SECFORST) and only microbial abundance shifts were observed. These findings provide relevant insights on belowground resilience, evidenced by similar ecosystem services provision capacities over time, which may be influenced progressively by opportunistic Chusquea sp.
ISSN:	1999-4907
DOI:	10.3390/f16030456
Fuente:	Agriculture Science Database