Báo cáo lâm nghiệp: "On the occurrence of web-spinning sawflies of the genus Cephalcia (Hymenoptera, Pamphiliidae) in the Czech Republic" potx

Báo cáo lâm nghiệp: "On the occurrence of web-spinning sawflies of the genus Cephalcia (Hymenoptera, Pamphiliidae) in the Czech Republic" potx

Báo cáo lâm nghiệp: "On the occurrence of web-spinning sawflies of the genus Cephalcia (Hymenoptera, Pamphiliidae) in the Czech Republic" potx

... 57–62 Because of the lack of a recent survey of Cephal- cia species in the Czech Republic, the goals of this study were (i) to monitor web-spinning sawflies liv- ing on spruce in mountainous regions ... species occurrence. Canonical axes explain 65.8% of variability J. FOR. SCI., 53, 2007 (Special Issue): 57–62 59 Table 1. Survey of studied web-spinning sawflies...
Ngày tải lên : 07/08/2014, 03:22
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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

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

... differences in the root system development and health condition were found either between the trees of identical height from self-seeding and from planting in the region of Krušné hory Mts. and in the ... 452–461 JOURNAL OF FOREST SCIENCE, 53, 2007 (10): 452–461 Root system development and health condition of sycamore maple (Acer...
Ngày tải lên : 07/08/2014, 04:20
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Báo cáo lâm nghiệp: "Growth, allocation and leaf gas exchanges of hybrid poplar plants in their establishment phase on previously forested sites: effect of different vegetation" docx

Báo cáo lâm nghiệp: "Growth, allocation and leaf gas exchanges of hybrid poplar plants in their establishment phase on previously forested sites: effect of different vegetation" docx

... 10.1051/forest:2007005 Original article Growth, allocation and leaf gas exchanges of hybrid poplar plants in their establishment phase on previously forested sites: effect of different vegetation management ... biomass allocation and leaf carbon assimilation was investigated in two plantations (1- and 2-year-old) established in previously f...
Ngày tải lên : 07/08/2014, 16:20
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Báo cáo lâm nghiệp: "A method for describing and modelling of within-ring wood density distribution in clones of three coniferous species" ppt

Báo cáo lâm nghiệp: "A method for describing and modelling of within-ring wood density distribution in clones of three coniferous species" ppt

... expected change in distribution of within-ring density for one sd increase in ring width is presented in Figure 3. 3.4. Differences among clones in within-ring density Fluctuations in growth rate and within-ring ... relative contribution of clone differences to the overall variation in shape of within-ring frequency distributions of wood density....
Ngày tải lên : 08/08/2014, 00:21
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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

... 2005 DOI: 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 Para...
Ngày tải lên : 08/08/2014, 00:21
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Báo cáo lâm nghiệp: "Leaf and whole-plant water relations of the Patagonian conifer Austrocedrus chilensis (D. Don) Pic. Ser. et Bizzarri: implications on its drought resistance capacity" ppt

Báo cáo lâm nghiệp: "Leaf and whole-plant water relations of the Patagonian conifer Austrocedrus chilensis (D. Don) Pic. Ser. et Bizzarri: implications on its drought resistance capacity" ppt

... 10.1051/forest:2005024 Original article Leaf and whole-plant water relations of the Patagonian conifer Austrocedrus chilensis (D. Don) Pic. Ser. et Bizzarri: implications on its drought resistance capacity Javier ... Pastorino M.J., Genetic variation and reproduction system of Aus- trocedrus chilensis (D. Don) florin et Boutelje, a cy...
Ngày tải lên : 08/08/2014, 00:21
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Báo cáo lâm nghiệp: "Morning, noon, or afternoon: does timing of direct radiation influence the growth of Picea abies seedlings in mountain forests?" pptx

Báo cáo lâm nghiệp: "Morning, noon, or afternoon: does timing of direct radiation influence the growth of Picea abies seedlings in mountain forests?" pptx

... amount of direct sun- light enhances the growth of P. abies seedlings in subalpine environments, the timing of exposure to direct sunlight is less important. The pathways of influence of direct ... treatment). Like the other seedlings, these seedlings were either potted (32 seedlings) or outside pots (8 seed- lings). However, we did not include these...
Ngày tải lên : 08/08/2014, 00:22
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Báo cáo lâm nghiệp: "Tension wood occurrence in three cultivars of Populus × euramericana. Part I: Inter-clonal and intra-tree variability of tension wood" ppsx

Báo cáo lâm nghiệp: "Tension wood occurrence in three cultivars of Populus × euramericana. Part I: Inter-clonal and intra-tree variability of tension wood" ppsx

... most planted cultivars in Valley of Cinca (Spain): I214, Luisa Avanzo and I-MC, as well as the intra-tree variability. We present here the distribution of tension wood in nine stems of poplar rapidly ... Lean in red alder (Alnus rubra): growth stress, tension wood, and righting response, Can. J. For. Res. 26 (1996) 1951–1956. Tension wood variability in t...
Ngày tải lên : 08/08/2014, 00:22
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Báo cáo lâm nghiệp: "Age-related physiological and structural traits of chestnut coppices at the Castelli Romani Park (Italy)" pot

Báo cáo lâm nghiệp: "Age-related physiological and structural traits of chestnut coppices at the Castelli Romani Park (Italy)" pot

... sativa in the Castelli Romani Park, due to the favourable climatic and soil conditions for the species. Although the intensive exploi- tation of this area, the analysed coppice showed the great capac- ity ... indicator of potential productivity in response to changing factor [23, 25, 26, 42]. The analysis of the physiological traits trend underlined the impo...
Ngày tải lên : 08/08/2014, 00:22
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Báo cáo lâm nghiệp: " On the niche breadth of Fagus sylvatica: soil nutrient status in 50 Central European beech stands on a broad range of bedrock types" potx

Báo cáo lâm nghiệp: " On the niche breadth of Fagus sylvatica: soil nutrient status in 50 Central European beech stands on a broad range of bedrock types" potx

... 355 c  INRA, EDP Sciences, 2006 DOI: 10.1051/forest:2006016 Original article On the niche breadth of Fagus sylvatica: soil nutrient status in 50 Central European beech stands on a broad range of bedrock ... among the sites than do actually exist in the main rooting horizon. A major disadvantage of our study is the lack of appropriate...
Ngày tải lên : 08/08/2014, 00:22
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Báo cáo lâm nghiệp: "Response to natural and simulated browsing of two Mediterranean oaks with contrasting leaf habit after a wildfire" docx

Báo cáo lâm nghiệp: "Response to natural and simulated browsing of two Mediterranean oaks with contrasting leaf habit after a wildfire" docx

... late winter to early summer, and eat foliage, shoots and acorns of oaks in summer and autumn [20]. We have carried out two different studies in these rangelands to assess the effect of post-fire natural and ... Mediterranean oaks with contrasting leaf habit after a wildfire Josep Maria E * , Abdessamad H ,JavierR Centre de Recerca Ecològica i...
Ngày tải lên : 08/08/2014, 00:22
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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

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

... tremuloides and the resultant canopy gaps formed, appear to be critical for P. glauca regen- eration in mature and old stands. Natural regeneration may be enhanced by taking advantage of the advanced regeneration during ... Recruitment pattern of P. glauca seedlings changed along the chronosequence. L(t) analysis (Fig. 4) showed that the spatial distribution...
Ngày tải lên : 08/08/2014, 01:22
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Báo cáo lâm nghiệp: "Relationships between hydraulic traits and habitat preference for six Acer species occurring in the French Alps" pptx

Báo cáo lâm nghiệp: "Relationships between hydraulic traits and habitat preference for six Acer species occurring in the French Alps" pptx

... 81 Ann. For. Sci. 61 (2004) 8186 â INRA, EDP Sciences, 2004 DOI: 10.1051/forest:2003087 Original article Relationships between hydraulic traits and habitat preference for six Acer species occurring ... adapted for high water transport. In contrast, plants need to invest less in means of acquiring water for their growth in dry habitats, and therefore reduced...
Ngày tải lên : 08/08/2014, 01:22
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Báo cáo lâm nghiệp: "On the durability of Burkea africana heartwood: evidence of biocidal and hydrophobic properties responsible for durability" ppt

Báo cáo lâm nghiệp: "On the durability of Burkea africana heartwood: evidence of biocidal and hydrophobic properties responsible for durability" ppt

... by measuring the diameter of the colony estimated from the mean of two perpendic- ular diameters and expressed as a percentage of the room available for growth, i.e. the diameter of the dish. Growth ... Independently of the nature of the extraction, weight losses observed on Burkea africana blocks are weak, while beech blocks are strongly degraded. These re...
Ngày tải lên : 08/08/2014, 01:22
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Báo cáo lâm nghiệp: "Distribution, historical development and ecophysiological attributes of oak species in the eastern United States " pdf

Báo cáo lâm nghiệp: "Distribution, historical development and ecophysiological attributes of oak species in the eastern United States " pdf

... even in the absence of fire. ECOPHYSIOLOGICAL ATTRIBUTES OF EASTERN OAK SPECIES The studies reviewed in the previous sec- tions indicate that eastern oak species have expanded ... on the gently rolling till plains of Ohio and Indi- ana, and with Tilia americana in south- western Wisconsin, northwestern Illinois, northeastern lowa...
Ngày tải lên : 08/08/2014, 18:21
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