Effect of climatic conditions and tree size on Austrocedrus chilensis–shrub interactions in northern Patagonia

Effects of overstorey canopy, plant–plant interactions and soil properties on Mediterranean maritime pine seedling dynamics

“…It may also have arisen from improved seedling water status and competitive ability as well as increased light demand. Previous studies on Mediterranean systems describe similar results for Pinus sylvestris and P. nigra seedlings (Castro et al, 2004b;Gómez-Aparicio et al, 2005a), and P. halepensis ponderosa forests in xeric systems (Keyes and Maguire, 2005) and other conifers such as Austrocedrus chilensis in Patagonian forests (Kitzberger et al, 2000;Letourneau et al, 2004). A positive effect of woody debris over the soil surface (especially branches) on post-fire regeneration was recently reported for P. pinaster (Castro et al, 2010).…”

Influence of radiation and drought on gas exchange of Austrocedrus chilensis seedlings

“…Mostly, Influence of radiation and drought on gas exchange seedlings of A. chilensis are restricted to the presence of shrubs, under which soil water in microsites is higher than in the open (Kitzberger 1995). However, it seems that excess radiation was a more limiting factor than soil water content for seedling survival of this species (Kitzberger et al 2000, Letourneau et al 2004. Precipitation and average temperature during summer explain recruitment patterns of A. chilensis (Gobbi andSchlichter 1998, Kitzberger et al 2000).…”

Short-term effects of fire on plant cover and soil conditions in two Austrocedrus chilensis (cypress) forests in Patagonia, Argentina

“…Precipitation fallen during the first growing season considered in this study (2000)(2001) was 187% and 156% higher than mean climatic values registered for Trevelin and Bolsón, respectively, while for the second growing season (2001)(2002), by contrast, these values diminished to 49% and 60% for each site, respectively. Taking these values into consideration and according to other authors [24,31], the first growing season was considered in this study as humid, while the second as very dry.…”

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Abstract -Early post-fire effects on plant cover, in soil temperature (0,5,20, and 30 cm depth) and moisture (0)(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32)(33)(34)(35)(36), and 40-56 cm depth) were analyzed for two years in two cypress stands in Patagonia, Argentina. Each stand (Trevelin = xeric and Bolsón = mesic) contained three treatments: unburned (UN), partially (PB), and completely burned (CB).

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