Báo cáo lâm nghiệp: "Relationships between hydraulic traits

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) 81–86 © 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: " Relationships between browsing damage and woody species dominance" doc

... correlate with the dominance of the given species being suitable parameters for the analysis of a relationship between the intensity of damage and dominance. At the same time, the higher the proportion ... Table 2). Other species occurred in a small proportion < 10% (22 transects); in a part of the plots, there was a very broad spectrum of other species (6...

Ngày tải lên : 07/08/2014, 10:21

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Báo cáo lâm nghiệp: "Relationships between stem size and branch basal diameter variability in Norway spruce (Picea abies (L.) Karsten) from two regions of France" doc

... living whorls, the differences between the thickest branch and thinnest one increases as and when the tree grows. • With tree ageing, living whorls also contained dead thin branches contributing ... consequences for the modelling work [24]. An example of the phenomenon is shown in Figure 3 for an old tree crown. In Figure 3, dead and living branches were plotted tog...

Ngày tải lên : 08/08/2014, 01:22

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Báo cáo lâm nghiệp: "Relationships between the parameters of aboveground parts and the parameters of root plates in Norway spruce with respect to soil drainage" docx

... trees growing in well-drained sites. Inter- estingly, on the other hand, in waterlogged sites, the mean value of R rp was 159 cm only, but it was 211 cm in trees growing in well-drained sites. ... results concerning the correlation between the C pi and the root plate width. He reported these two variables being in correlation in the both types of the studie...

Ngày tải lên : 07/08/2014, 10:22

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Báo cáo lâm nghiệp: "Relationships between site and stock quality in Pinus halepensis Mill. reforestation on semiarid landscapes in eastern Spain" ppsx

... in July and December in the ﬁrst year (2004) and Decem- ber in the second year (2005). These variables were computed from records from the weather station network located in the vicinity of the ... accounting by itself for up to 31% of the total planted area and participating in mixed species reforesta- tions in another 55% of the total area [1]. It is one...

Ngày tải lên : 07/08/2014, 16:21

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Báo cáo lâm nghiệp: "Links between tree structure and functional leaf traits in the tropical forest tree Dicorynia guianensis Amshoff (Caesalpiniaceae)" ppsx

... carried out in the morning between 07 00 and 12 00 h in the forest understorey and between 07 00 and 10 00 h in the clearing to avoid a mid-day stomatal closure. During the A-PPFD responses, the mean ... higher in the clearing (e.g. ASD 3), in producing longer internodes and more nodes per GU, than in the understorey (e.g. ASD 2). The former had already...

Ngày tải lên : 08/08/2014, 00:22

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Báo cáo lâm nghiệp:"Relationships between soil factors, Quercus robur health, Collybia fusipes root infection and Phytophthora presence" doc

... computed by taking into account these infected roots. In the three plots, Ainvelle, Mersuay and Filain, there was a significant relationship between the C. fusipes root infection index and the depth ... three other oaks in Mersuay, three oaks in Filain and two in Ainvelle. In these cases Armillaria was present on a minority of roots, inducing superficial lesions, the...

Ngày tải lên : 08/08/2014, 01:21

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Báo cáo lâm nghiệp: "Relationships between the intra-ring wood density assessed by X-ray densitometry and optical anatomical measurements in conifers. Consequences for the cell wall apparent density determination" pps

... width of the section and straightness of the ring limits. The selected widths were 3000 µm for Finland spruce, France spruce and France fir; 1500 µm for France pine and South Finland pine and 1000 ... along the ring. The changes of the cells sizes are greater in the radial [9, 17] than in the tan- gential direction [8] as the number of cells rows increases mu...

Ngày tải lên : 08/08/2014, 01:22

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Báo cáo lâm nghiệp: "Whole tree hydraulic conductance and water loss regulation in Quercus during drought: evidence for stomatal control of embolism?" doc

... from these xylem conduits. In this study, we did not determine the theo- retical point of runaway embolism in the sense of Tyree and Sperry (1988) or Jones and Sutherland ... when Ψ predawn and Ψ midday were still high. Whole tree apparent hydraulic conductance declined steeply at the beginning of the drought and then...

Ngày tải lên : 08/08/2014, 18:21

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Báo cáo lâm nghiệp: "An economic aspect of conversion of Scots pine (Pinus sylvestris L.) stands in the Polish Lowland" docx

... Poland) which provided information concerning 108,000 stands taking up the area of over 344,500 ha, of which the area of single -species pine stands was 92,800 ha and that of mixed stands in ... 293–298 In Europe, in the past, when forest management tried to meet the demands of industry, coniferous species were preferred due to their faster increment and therefore, N...

Ngày tải lên : 07/08/2014, 03:22

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