Báo cáo lâm nghiệp: " Managing diameter growth and natural pruning of Parana pine, Araucaria angustifolia (Bert ) O Ktze , to produce high value timber" ppt
Báo cáo lâm nghiệp: " Managing diameter growth and natural pruning of Parana pine, Araucaria angustifolia (Bert.) O Ktze., to produce high value timber" ppt
... 10.1051/forest:2005008 Original article Managing diameter growth and natural pruning of Parana pine, Araucaria angustifolia (Bert. ) O Ktze. , to produce high value timber Leif NUTTO a , Peter ... present work was to analyse diameter growth and the relationship of natural pruning and various morphological characteristics of Pa...
Ngày tải lên: 08/08/2014, 00:21
Báo cáo lâm nghiệp:"Individual-tree growth and mortality models for Scots pine (Pinus sylvestris L.) in north-east Spain" docx
... Ibérico Mountain Range (Spain ), For. Ecol. Manage. 145 (200 1) 151–161. [18] Munro D ., Forest growth models – a prognosis, in: Fries J. (Ed . ), Growth models for tree and stand simulation, Proceedings ... height (m); H dom and D dom are dominant height (m) and dominant diameter (cm) of the stand, respectively. 2.4. Mortality To account for mortality, two types...
Ngày tải lên: 08/08/2014, 01:21
Báo cáo lâm nghiệp: "Variations in growth and virulence of Leptographium wingfieldii Morelet, a fungus associated with the bark beetle Tomicus piniperda L" pot
... massif of Lorris, but large plots of pines also exist in the massif of Orléans. Plots consist often of monocultures of one species, but many others comprise mixed species stands. The for- est of Orléans ... results from the fact that often only a minor proportion of the beetles in a population vectors path- ogenic fungi [1 7, 2 4, 33 ], and that the mode of inoculat...
Ngày tải lên: 08/08/2014, 01:22
Báo cáo lâm nghiệp: " Root system development and health condition of sycamore maple (Acer pseudoplatanus L.) in the air-polluted region of Krušné hory Mts" ppt
... (see stand situation 5, mutual comparison of stand situation 2 and 3, mutual comparison of stand situation 4 and 5) (Tables 1, 2, 3). Biomass, vitality and mycorrhizal infection of fine roots Fine ... Biometric parameters of the shoot part, root system type, deformation, rooting depth, rots Stand marking Stand situation Shoot height (cm) d 1.3 (mm) Root s...
Ngày tải lên: 07/08/2014, 04:20
Báo cáo lâm nghiệp: "Predicting site productivity and pest hazard in lodgepole pine using biogeoclimatic system and geographic variables in British Columbia" potx
... North America [4]. This species is notable for its adaptation to a wide range of environments, from low elevation, coastal bogs to alpine condi- tions, and occurs naturally in 12 out of the total ... subzones associated with micro-site factors such as variation on soil, slope, vegetation composition. There are also variations on his- tory of stand, stand management due to recent...
Ngày tải lên: 08/08/2014, 00:21
Báo cáo lâm nghiệp: "Assessing the nutritional and climatic response of temperate tree species in the Vosges Mountains" doc
... sites with high levels of exchangeable base cations (Ca, Mg, K ), favourable nitrogen nutrition (low C:N ratio) and low Al toxicity. Sycamore, at lower elevations (lower values of WB) was only predicted ... variable linked to growth, mean January temperature as a variable of winter conditions and the De Martonne annual index of aridity (IV AI ). For the two sets of in...
Ngày tải lên: 08/08/2014, 00:22
Báo cáo lâm nghiệp: "Age-related physiological and structural traits of chestnut coppices at the Castelli Romani Park (Italy)" pot
... dominant shoot height of each stool; r = correlation coefficient. Figure 3. Trend of shoot density (SHOd ), stem diameter at breast hei- ght (DBH ), the dominant shoot height of each stool (DH ), ... (STAd, ind ha –1 ), stem diameter at breast height (DBH, cm ), and the dominant shoot height of each stool (DH, m) in each stands, according to Gallardo et al. [17] a...
Ngày tải lên: 08/08/2014, 00:22
Báo cáo lâm nghiệp:" Structure, spatial distribution and competition in mixed jack pine (Pinus banksiana) stands on clay soils of eastern Canada" pps
... F ., A simulation model for managing jack-pine stands, in Growth models for tree and stand simulation. Royal College of Forestry, Stockholm, Sweden, 197 4, pp. 74–90. [22] Holmes M.J ., Reed D.D ., ... removal on the regeneration of Populus tremuloides, J. Veg. Sci. 5 (199 4) 561–568. [28] Longpré M.H ., Bergeron Y ., Paré D ., Béland M ., Effects of com...
Ngày tải lên: 08/08/2014, 01:21
Báo cáo lâm nghiệp: "Picea glauca dynamics and spatial pattern of seedlings regeneration along a chronosequence in the mixedwood section of the boreal forest" potx
... shifted from being deciduous to coniferous dominated. The ratio of softwood to hardwood basal area increased from 0.03 in a 16 y stand to 17.0 in a 172 y stand. Populus tremuloides constituted 96% of ... Messier C ., Lieffers V ., Cormier D ., Doucet R ., Coates K.D ., Groot A ., Grover G ., Calogeropoulos C ., Modeling silvicultural alternatives for conifer...
Ngày tải lên: 08/08/2014, 01:22
Báo cáo lâm nghiệp: "Distribution, historical development and ecophysiological attributes of oak species in the eastern United States " pdf
... America. Book Division, Times Mirror Magazines Inc, New York, 948 p Elliott JC (195 3) Composition of upland second growth hardwood stands in the tension zone of Michigan ... America, but for the pur- pose of a discussion of oak ecology, this may be simplified to six associations: north- ern hardwood-conifer, maple-beech-bass- wood, mixed-m...
Ngày tải lên: 08/08/2014, 18:21