期刊
SOUTHERN JOURNAL OF APPLIED FORESTRY
卷 36, 期 3, 页码 126-129出版社
SOC AMER FORESTERS
DOI: 10.5849/sjaf.10-043
关键词
Pinus taeda; self-thinning; stand density index; zone of imminent competition mortality
类别
For density management diagrams (DMDs), it is usually assumed the relative value between Reineke's stand density index (SDI) where self-thinning is expected to begin and a maximum size-density relationship species boundary line is constant regardless of planting density. Using estimated size-density trajectories of loblolly pine plantations in the southeastern United States, the quadratic mean diameter at which the onset of self-thinning occurs was determined. An equation was then fitted to estimate the quadratic mean diameter at which self-thinning is expected to begin relative to planting density. DMDs that accounted for planting density showed that self-thinning began at 40-72% of the species maximum SDI for planting densities ranging from 605 to 2,722 seedlings per acre.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据