Báo cáo lâm nghiệp: "A fire probability model for forest stands in Catalonia (north-east Spain)" pptx

... forest trees in Slovakia. Nauka za Gorata – Forest Science, 43: 29–36. SCHIEBER B., 2006b. Spring phenology of European beech (Fagus sylvatica L.) in submountain beech forest stand with various ... deciduous forest tree species (Carpinus betulus L., Fagus sylvatica L., Quercus dalechampii Ten., Tilia cordata Mill.) was studied in a submountain beech forest...

Ngày tải lên: 07/08/2014, 10:21

... methods of forest land maintenance in protective zones of high-voltage power lines (HVPL) 400 kV in the protective zone of 70–80 m in width, and 220 kV in the protective zone of 50–60 m in width ... on the number of trees and tree species that would naturally regenerate in zones of HVPL or in open areas outside the forest the resu...

Ngày tải lên: 07/08/2014, 10:21

... three broad categories: whole-stand models, individual-tree models, and diameter-distribu- tion models (M 1974). Whole-stand models are models that use the stand as a modelling unit (C ... ABSTRACT: Stand growth and yield models include whole-stand models, individual-tree models and diameter-distri- bution models. In this study, the three models were linked by fore...

Ngày tải lên: 07/08/2014, 10:22

Ngày tải lên: 07/08/2014, 16:20

... Spain (Received 15 September 2006; accepted 20 December 2006) Abstract – A dynamic whole-stand growth model for radiata pine (Pinus radiata D. Don) stands in north-western Spain is presented. In ... inventory data are available [4]. A growth model for Pinus radiata D. Don stands in north-western Spain 455 Table I. Summarised data corresponding to the...

Ngày tải lên: 07/08/2014, 16:21

... 1902. Measurement of standing tree shape by photographic method 635 Figure 4. 3D reconstruction of the 70-year-old Norway spruce tree. Figure 5. Photographic method estimates of the local slope ... position of the standing trees. The disadvantages of this method are that a minimum of three targets per log must be attached to the stem of standing trees, a...

Ngày tải lên: 07/08/2014, 16:21

... 1= n ∑ = y ˆ i y χ crit 2 Ecoregional site index models for Pinus pinaster 127 [35] Johansson T., Site index curves for common alder and grey alder growing on different types of forest soil in Sweden, Scan. J. For. Res. ... Montero G., Inter-regional variability in site index models for even-aged stands of stone pine (Pinus pinea L.) in Spain, Ann. For....

Ngày tải lên: 08/08/2014, 00:21

... 369 Ann. For. Sci. 62 (2005) 369374 â INRA, EDP Sciences, 2005 DOI: 10.1051/forest:2005032 Original article Quantitative trait loci mapping for vegetative propagation in pedunculate oak Caroline ... Sederoff R.R., Genetic mapping of quantitative trait loci (QTLs) controlling vegetative propagation in Eucalyptus grandis and E. urophylla, using the pseudo-testc...

Ngày tải lên: 08/08/2014, 00:22

... 455 Ann. For. Sci. 62 (2005) 455465 â 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 growth function...

Ngày tải lên: 08/08/2014, 00:22

... 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 ... stand-level model for the probability of fire adequate for forest management planning in Catalonia. The model should use variables that are normall...

Ngày tải lên: 08/08/2014, 00:22

... high temperatures favoured the germination of Genista florida. Therefore, a balance between the elimination of competitor shrub species and the stimulation of the germination of Pinus sylvestris seeds must be ... 2002076 Original article Predicting the probability of seed germination in Pinus sylvestris L. and four competitor shrub sp...

Ngày tải lên: 08/08/2014, 01:21

... 237 Ann. For. Sci. 60 (2003) 237245 â INRA, EDP Sciences, 2003 DOI: 10.1051/forest:2003015 Original article A height-diameter model for Pinus radiata D. Don in Galicia (Northwest Spain) Carlos ... The model of Tomé gave the best height estimates. Pinus radiata D. Don / forest modelling / Galicia / height-diameter relationship Résumé – Un modèle hauteur-dia...

Ngày tải lên: 08/08/2014, 01:21

... 327335 â INRA, EDP Sciences, 2004 DOI: 10.1051/forest:2004026 Original article A flexible radial increment model for individual trees in pure even-aged stands Christine DELEUZE a *, Olivier PAIN a , ... various individual growth models for trees in pure and even-aged stands, a generic model with a form parameter according to each species is proposed. With a f...

Ngày tải lên: 08/08/2014, 01:21

... refer to the simu- lated root extension in two other trees and the small dots refer to other trees. Fractals for root biomass and architecture 339 in exposed root systems were similar for both ... extension in trees 6 and 10, the small dots refer to other trees and the rectangle is the 12 -tree sample plot. For G. sepium, the simulated root arc...

Ngày tải lên: 08/08/2014, 01:21

... 10.1051/forest:2003080 Original article Growth and yield model for uneven-aged mixtures of Pinus sylvestris L. and Pinus nigra Arn. in Catalonia, north-east Spain Antoni TRASOBARES a *, Timo PUKKALA b , Jari MIINA c ... uneven-aged mixtures of Pinus sylvestris L. and Pinus nigra Arn. in Catalonia (north-east Spain) were developed. Sepa...

Ngày tải lên: 08/08/2014, 01:22