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

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Pubblicato in:Forests vol. 16, no. 3 (2025), p. 456
Autore principale: Ortiz, Juan
Altri autori: 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
Pubblicazione:
MDPI AG
Soggetti:
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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Abstract: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
Fonte:Agriculture Science Database