Artículo
Water-mediated changes in plant-plant and biological soil crust-plant interactions in a temperate forest ecosystem
Pissolito, Clara Ines
; Garibotti, Irene Adriana
; Varela, Santiago Agustín; Arana, Maria Veronica
; Gonzalez Polo, Marina
; Marchelli, Paula
; Bruzzone, Octavio Augusto
Fecha de publicación:
04/2019
Editorial:
Copernicus Publications
Revista:
Web Ecology
ISSN:
1399-1183
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In the quest to understand how biotic interactions respond to climate change, one area that remains poorly explored is how interactions involving organisms other than vascular plants will respond. However the interactions between plants and biological soil crusts (BSCs) are relevant in many ecosystems and they will likely respond uniquely to climate change. Simultaneous considerations of both plant-plant and plant-BSC interactions may substantially improve our understanding of this topic. The aim of this study is to assess whether water availability differentially affects the biotic effects of BSCs and pioneer shrubs on the early life-history stage of tree seedling growth. We conducted a greenhouse factorial experiment with soil surface cover (bare soil, soil covered by a creeping shrub and BSC covered soil) and water regime (control and drought) as factors. We monitored Nothofagus pumilio (a native tree species of ecological and economic relevance) seedling water status and growth as well as changes in soil water content and soil properties. The shrub cover had a positive effect on soil water conservation and on the water balance of seedlings under water stress. However, its effect was negative for seedling growth under both water conditions. The BSC also contributed to soil water conservation and apparently added nutrients to the soil. The net effect of the BSC on seedling growth was negative under full-watering conditions but positive under water stress conditions. This result highlights how the studied biotic interactions, and especially interactions involving BSCs, depend on changes in water availability.
Palabras clave:
NOTHOFAGUS
,
EMPETRUM
,
EMPETRUM
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos (IFAB)
Articulos de INSTITUTO DE INVESTIGACIONES FORESTALES Y AGROPECUARIAS BARILOCHE
Articulos de INSTITUTO DE INVESTIGACIONES FORESTALES Y AGROPECUARIAS BARILOCHE
Articulos (IRNAD)
Articulos de INSTITUTO DE INVESTIGACIONES EN RECURSOS NATURALES, AGROECOLOGIA Y DESARROLLO RURAL
Articulos de INSTITUTO DE INVESTIGACIONES EN RECURSOS NATURALES, AGROECOLOGIA Y DESARROLLO RURAL
Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos(INIBIOMA)
Articulos de INST. DE INVEST.EN BIODIVERSIDAD Y MEDIOAMBIENTE
Articulos de INST. DE INVEST.EN BIODIVERSIDAD Y MEDIOAMBIENTE
Citación
Pissolito, Clara Ines; Garibotti, Irene Adriana; Varela, Santiago Agustín; Arana, Maria Veronica; Gonzalez Polo, Marina; et al.; Water-mediated changes in plant-plant and biological soil crust-plant interactions in a temperate forest ecosystem; Copernicus Publications; Web Ecology; 19; 1; 4-2019; 27-38
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