Micro-environmental changes induced by shape and size of forest openings: effects on Austrocedrus chilensis and Nothofagus dombeyi seedlings performance in a Pinus contorta plantation of Patagonia, Argentina

High survival rates and slight growth differences were observed for Austrocedrus chilensis and Nothofagus dombeyi seedlings planted within differently shaped canopy gaps (rectangular vs. circular) in a Pinus contorta plantation in Los Alerces National Park, Argentina. The study found that while soil temperature remained consistent across gap types, photosynthetic active radiation (PAR) and soil moisture were significantly higher in gaps compared to the understory control. Rectangular gaps promoted greater seedling diameter growth than circular ones, suggesting shape influences performance. These findings highlight the potential for reconverting monocultures into native forests but underscore the need for further testing of gap sizes and stand densities to optimize outcomes.

Pafundi, L., Urretavizcaya, M. F., & Defosse, G. E. (2016). Micro-environmental changes induced by shape and size of forest openings: effects on Austrocedrus chilensis and Nothofagus dombeyi seedlings performance in a Pinus contorta plantation of Patagonia, Argentina. Forest Systems, 25(3), e075. https://doi.org/10.5424/fs/2016253-08971