Ecophysiology of natural regeneration of forest stands in Spain
نویسندگان
چکیده
منابع مشابه
Fitting Tree Height Distributions in Natural Beech Forest Stands of Guilan (Case Study: Masal)
In this research, modeling tree height distributions of beech in natural forests of Masal that is located in Guilan province; was investigated. Inventory was carried out using systematic random sampling with network dimensions of 150×200 m and area sample plot of 0.1 ha. DBH and heights of 630 beech trees in 30 sample plots were measured. Beta, Gamma, Normal, Log-normal and Weibull prob...
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With regard to desired natural regeneration establishment that it is the goal of selection systems. The role of tree and group selection silvicultural systems on the quantity and quality of natural regeneration was conducted at four site of forest. First, 100 circular sample plots has been selected by use of random systematic inventory. Then into the each plots nine micro-plots defined. The res...
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Natural regeneration is one of the key aspects of forest sustainability and a tool to decide on restoration programs in forest areas. The purpose of this study was to investigate the quantity of natural regeneration of Acer campestre L. as one of the most important tree species in Arasbaran forests and its relationship with elevation changes and structural characteristics in the natural stands....
متن کاملEcophysiology and growth of advance red spruce and balsam fir regeneration after partial cutting in yellow birch-conifer stands.
We investigated ecophysiological and growth responses of short (0.4 to 1.3 m in height) advance regeneration of red spruce (Picea rubens Sarg.) and balsam fir (Abies balsamea L.) six years after removal of 0, 40, 50, 60 and 100% of the overstory basal area (BA) in two yellow birch-conifer stands. Partial cuts significantly increased stomatal conductance of red spruce only. Light-saturated photo...
متن کاملEstimating Tree Grades for Southern Appalachian Natural Forest Stands
Log prices can vary significantly by grade: grade 1 logs are often several times the price per unit of grade 3 logs. Because tree grading rules derive from log grading rules, a model that predicts tree grades based on tree and stand-level variables might be useful for predicting stand values. The model could then assist in the modeling of timber supply and in economic optimization. Grade models...
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ژورنال
عنوان ژورنال: Investigación Agraria: Sistemas y Recursos Forestales
سال: 2005
ISSN: 2340-3578,1131-7965
DOI: 10.5424/srf/2005143-00939