Báo cáo lâm nghiệp: "A stochastic height-diameter model for maritime pine ecoregions in Galicia (northwestern Spain)" doc
Báo cáo lâm nghiệp: "A stochastic height-diameter model for maritime pine ecoregions in Galicia (northwestern Spain)" doc
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Ann. For. Sci. 62 (2005) 455–465
© INRA, EDP Sciences, 2005
DOI: 10.1051/forest:2005042
Original article
A stochastic height-diameter model for maritime pine ecoregions
in Galicia (northwestern ... stochastic height-diameter model was developed for maritime pine (Pinus pinaster Ait.) in Galicia (northwestern Spain). Four
well-known...
Báo cáo lâm nghiệp: "A fire probability model for forest stands in Catalonia (north-east Spain)" pptx
... probability model for forest stands in Catalonia pre-
sented in this study opens many possibilities to integrate the risk
of fire into forest management planning and decision-making.
The parameters included ... B.A., Using
forest fire hazard modelling in multiple use forest management
planning, For. Ecol. Manage. 134 (2000) 163–176.
[24] Trasobares A., Pukkala T., Miina J., Growth...
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... groups:
Group 1: Low sampling effort models, including those models which
need diameter measurements and knowledge of age in some cases.
Group 2: Medium sampling effort models, including models which
need ... Tree Register
Updating for Loblolly Pine (an individual tree growth and yield
model for managed loblolly pine plantations). Coop. Rep. 83.
Blacksburg, VA: Virginia Polytechni...
Báo cáo lâm nghiệp: "A fractal root model applied for estimating the root biomass and architecture in two tropical legume tree species" pps
... 1.19 for parameter a in the model of West et al.
[27], when two new links are formed in each bifurcation (n =2
in Eqs. (3–7)).
In E. lanceolata, the average link length varied from 15 cm
in order ... empirical model for orders 2
through 7 were 0.98 and 0.62 for G. sepium and E. lanceolata,
respectively. Because of the better fit, the empirical model was
used for estima...
Báo cáo lâm nghiệp: "A survey of forest pollution with heavy metals in the Natural Forest Region (NFR) Moravskoslezské Beskydy with particular attention to Jablunkov Pass" docx
... samples in the case of Cd
and Zn in the whole country.
e results of needle analyses conducted in Nor-
way spruce stands on old spoil banks in the Black
Forest (Schwarzwald) are very interesting in ... titrimetric method for N
(Kjeltec, Tecator), spectrophotometry for P (Spekol
11), flame emission for K and AAS-Flame for Ca,
Mg.
Dry ashing and uptake in HNO
3
were use...
Báo cáo lâm nghiệp: "A digital photographic method for 3D reconstruction of standing tree shape" ppt
... process-
ing time from the current level of 20 min per tree to something
in the order of one minute per tree, thus enabling the method to
become more efficient and potentially usable in routine forest
inventory. ... precision for the first 12 m of the
stem (interval of uncertainty ± 7.2 mm) and lower for heights
above 12 m (interval of uncertainty ± 20.8 mm). According
to these authors,...
Báo cáo lâm nghiệp: "Growth and yield model for uneven-aged mixtures of Pinus sylvestris L. and Pinus nigra Arn. in Catalonia, north-east Spain" pptx
... for the
Northern Rocky Mountains, PROGNAUS [22] developed for
the Austrian forests, and the model developed by Schröder
et al. [33] for maritime pine trees in northwestern Spain. An
interesting ... were 0.11 for the P. sylvestris
ingrowth model, 0.11 for the P. nigra ingrowth model, 0.12 for
the P. sylvestris mean dbh of ingrowth model, and 0.05 for the
P. nigra mean...
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... number of buds formed in each cotyledon
was lower in explants incubated for 4 or 8 d in 44.4 µMBA
than in explants cultured for 16 and 35 d, the minimum induc-
tion period to obtain an optimal ... en-
dogenous cytokinins levels may be involved in loss of shoot-
forming ability in the apical portions of stone pine cotyledons.
On the contrary, other studies in pines such as...
Báo cáo lâm nghiệp:"Influence of cotyledon removal on early seedling growth in Quercus robur L." doc
... emergence resulted in a significant reduction in seedling
growth. Shading had a minor effect during this period. However, the influence of cotyledons on seedling growth declines soon. Their artificial
suppression ... 80 ºC for 48 h and
weighted. Total nitrogen content was determined as an additional
measure for each single sample by using the Kjeldahl method.
The number of individual...
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