Quantifying effects of different levels of dispersed canopy tree retention on stocking and yield of the regeneration cohort

摘要: Abstract Under a variable retention strategy , retained trees contribute to the structural complexity of subsequent stand, and provide habitat for wildlife shelter regeneration understory vegetation. The effects on stocking yield cohort vary by spatial arrangement (group or dispersed), attributes (species, condition, size frequency), site, other factors. Accurate growth predictions are not yet readily available wide variety stand structures possible under strategy. General tree development outlined various approaches modeling simulating final yields compared. Specific simulations quantified future pure lodgepole pine ( Pinus contorta Dougl. ex Loud.) interior spruce Picea engelmannii Parry ×  glauca ) stands in British Columbia. Compared clearcut scenarios, reduced 0.3–6.5%. Depending level (2–12 m 2 /ha), ranged from −8 −32%.