Development of cork oak (Quercus suber L.) seedlings in response to tree shelters and mulching in northwestern Tunisia

编号 zgly0000818185

文献类型 期刊论文

文献题名 Development of cork oak (Quercus suber L.) seedlings in response to tree shelters and mulching in northwestern Tunisia

作者 Taher  Mechergui  Marta  Pardos  Naceur  Boussaidi  Brahim  Hasnaoui  Douglass  F.  Jacobs 

作者单位 Faculté  des  Sciences  de  Bizerte  (FSB)  Instituto  Nacional  de  Investigacion  y  Tecnologia  Agraria  y  Alimentaria  (INIA).  Centro  de  Investigacion  Forestal.  Ctra.  de  La  Coruňa  Institut  Sylvo-Pastoral  de  Tabarka  Department  of  Forestry  and  Natural  Resources 

母体文献 林业研究: 英文版 

年卷期 2013(2)

页码 193-204

年份 2013 

分类号 A11 

关键词 Quercus  suber  L  afforestation  tree  shelter  mulching  seedling  growth  polycyclism 

文摘内容 The need for reforestation in cork oak (Quercus suber L.) areas is challenged by difficulties. Principal among these is herbivory of young plants, vegetative competition, and slow growth rates of cork oak seedlings. We evaluated the early development of cork oak seedlings treated using tree shelters and mulching in northwestern Tunisia. We tested three tree shelter treatments (non-vented, vented, and control) to shield seedlings from animal damage and five mulch types to control competing vegetation (Italian Stone Pine, Lentisk, combination of Italian Stone Pine and Lentisk (organic mulches), gravel (inorganic mulch) and no mulch). At the end of the two-year experiment, sheltered seedlings were 89-99% taller than unshelteredseedlings and had higher numbers and lengths of shoot growth flushes. In contrast, both stem diameter growth and dry weight biomass (from samples extracted after two years) were significantly reduced inside tree shelters. Root-to-shoot ratio was not significantly different in sheltered vs. unsheltered seedlings, suggesting that tree shelters do not adversely affect this parameter. Mulching alone did not favour growth, but could be beneficial when combined with tree shelters. The combination of vented tree shelters and gravel mulch was the most effective treatment for promoting diameter, height and stem volume growth.