Treefall gap, canopy opening caused by the death of one ormore trees, is the dominant form of disturbance in many forest systemsworldwide. Gaps play an important role in forest ecology helping to preservebio- and pedo-diversity, influencing nutrient cycles, and maintainingthe complex structure of the late-successional forests. Over the last30 years, numerous reviews have been written describing gap dynamics.Here we synthesize current understanding on gap dynamics relating totree regeneration with particular emphasis on gap characteristics consideredcritical to develop ecologically sustainable forest management systemsand to conserve native biodiversity. Specifically, we addressed thequestion: how do gaps influence forest structure? From the literature reviewed,the size of gaps induces important changes in factors such aslight intensity, soil humidity and soil biological properties that influencetree species regeneration and differ in gaps of different sizes. Shadetolerantspecies can colonize small gaps; shade-intolerant species needlarge gaps for successful regeneration. Additionally, gap dynamics differbetween temperate, boreal, and tropical forests, showing the importanceof climate differences in driving forest regeneration. This review summarizesinformation of use to forest managers who design cutting regimesthat mimic natural disturbances and who must consider forest structure,forest climate, and the role of natural disturbance in their designs.
|Titolo:||A review of the roles of forest canopy gaps|
MUSCOLO, Adele Maria (Corresponding)
|Data di pubblicazione:||2014|
|Appare nelle tipologie:||1.1 Articolo in rivista|