Landscape variables influence over active restoration strategies of Nothofagus forests degraded by invasive Castor canadensis in Tierra del Fuego
| Autor: | María Vanessa Lencinas, Guillermo Martínez Pastur, Juan Manuel Cellini, Yamina Micaela Rosas, Pablo Luis Peri, Jonathan J. Henn |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Geography Planning and Development Invasive Species Species substitution 01 natural sciences Invasive species Renewable energy sources invasive species Evaluación de Impacto Patagonia GE1-350 Impact Assessment Plantation Nothofagus Biomass (ecology) geography.geographical_feature_category biology Environmental effects of industries and plants Castor (genus) Estrategia 04 agricultural and veterinary sciences Factores Bióticos Restauración climate change Restoration Strategies Nothofagus pumilio Climate Change Plantations Growing season TJ807-830 plantation Management Monitoring Policy and Law TD194-195 010603 evolutionary biology Plantaciones species substitution Riparian forest Ciencias Agrarias Ecosystem Functions 040101 forestry Castor canadensis geography Renewable Energy Sustainability and the Environment Forestry Building and Construction biology.organism_classification Environmental sciences Abiotic Factors Castor purl.org/becyt/ford/4.1 [https] Cambio Climático Biotic Factors 0401 agriculture forestry and fisheries Plant cover Especie Invasiva Tierra del Fuego (Argentina) purl.org/becyt/ford/4 [https] Factores Abióticos |
| Zdroj: | Sustainability 13 (14) : 7541. (2021) INTA Digital (INTA) Instituto Nacional de Tecnología Agropecuaria instacron:INTA SEDICI (UNLP) Universidad Nacional de La Plata instacron:UNLP Sustainability, Vol 13, Iss 7541, p 7541 (2021) Sustainability Volume 13 Issue 14 CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET |
| Popis: | North American beavers (Castor canadensis) are responsible for the major changes in the Tierra del Fuego Archipelago, altering riparian forests for the long-term. Passive restoration of the areas affected was ineffective in the medium-term (up to 20 years), being necessary active strategies. Plantations in abandoned ponds were made with Nothofagus pumilio and N. antarctica tree species across Tierra del Fuego island (Argentina). In the first experiment, we analysed the influence of biotic and abiotic factors in three micro-habitats in the impacted areas: front and tail of ponds, and cut not-flooded forest areas. Five-years-old N. pumilio seedlings had 39% survival in front, 21% in tails, and 46% in cut areas at year-3 of the restoration experiments, being negatively influenced by plant cover and soil moisture. Lower growth was recorded during year-1 (0.7–0.9 cm yr−1), but increased on time (1.9 cm yr−1 front, 1.6 cm yr−1 tail, 4.3 cm yr−1 cut areas). A second experiment explores the alternative to substitute the tree species to face the harder conditions of the impact and climate change. For this, we conducted a new plantation at four locations across the main bioclimatic zones, where 10–40 cm N. antarctica plants attained 17% survival in meadows (front and tail) and 30% in cut areas, being higher with larger than smaller plants (25% vs. 18%), and where they are mainly influenced by rainfall (4% in sites < 400 mm yr−1 and 41% in > 400 mm yr−1). The main damage was detected in the above-ground biomass due to dryness, but root survival allowed the emergence of new shoots in the following growing season. It is necessary to monitor different Nothofagus species across natural environments in the landscape to determine the feasibility and effectiveness of different strategies in restoration plans, considering the selection of climate-resilient tree species. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|