Báo cáo lâm nghiệp: "Light acclimation and photosynthetic response of beech (Fagus sylvatica L.) saplings under artificial shading or natural Mediterranean conditions" docx

... dominant stand and the volume of dead trees is not included in the calculation. Stand density was calcu- lated according to standard mensurational practice from the ratio of actual basal area ... is the 6 th report on the production potential and stability of mixed forest stands in uplands. A mixed beech/larch stand that was established by...

Ngày tải lên: 07/08/2014, 03:22

... moder in the unmixed spruce stand and mixed stands, mull-moder in the unmixed beech stand (according to N et al. 2001). The high accumulation of humus in H horizon in the mixed stand of ... floor occurs in the stand of larch with beech (52.6 t/ha) and the statistically lowest one in the unmixed beech stand (22.0 t/ha). e mixed s...

Ngày tải lên: 07/08/2014, 03:22

... Nor- way spruce (Picea abies [L.] Karst.) underplantings in the Hrubý Jeseník Mts. In the area concerned 19 research plots were established, representing the ridge sites of the 8 th FAZ of acid ... growth and development of Norway spruce plantings in the ridge part of the Hrubý Jeseník Mts. Keywords: Norway spruce; nutrient defi...

Ngày tải lên: 07/08/2014, 10:21

... effect of land use change on the canopy structure and the understory light of a Holm oak woodland in central Spain. The woodland studied had two dis- tinct zones, one where the original woodland structure ... mean height of individual Holm Tab le I. Mean and standard deviation (SD) of canopy height, number of stems and basal area for the 900 1-m 2 sampling point...

Ngày tải lên: 07/08/2014, 16:20

... Fe Sapwood 1 0.01 0.03 – 0.01 0.05 – – 0.20 0.07 0.02 Sapwood 2 – 0.03 – – 0.02 – – 0.18 0.07 – Sapwood 3 – 0.01 – – – – – 0.11 0.30 – Heartwood 1 < 0.01 < 0.01 – 0.01 < 0.01 – – 0.07 ... the formation of mineral inclusions is induced or increases when the main functions of the woody tissues shift from transport...

Ngày tải lên: 07/08/2014, 16:20

... 177–182 177 c  INRA, EDP Sciences, 2007 DOI: 10.1051/forest:2006102 Original article Ice nucleation and frost resistance of Pinus canariensis seedlings bearing needles in three different developmental ... in frost resistance of expanding current-year needles of the Canary Island pine and subalpine evergreen timberline conifers of continental Europe...

Ngày tải lên: 07/08/2014, 16:20

... ageing of cork oak stands, loss of cork quality [41], intense pruning [8] and increased cork oak decline (“seca”) [27]. Cork oak stands in Spain can be differentiated into open cork oak woodlands ... treatments. In this study, we have developed height and diameter growth models for dominant cork oak trees using stem analysis data from two of the m...

Ngày tải lên: 08/08/2014, 00:22

... GHG- related effects of an increased use of wood within technosphere. One important effect of an increased use of wood was neglected: the decline of the carbon storage in the forests because of an increased ... article Carbon pool and substitution effects of an increased use of wood in buildings in Switzerland: first estimates...

Ngày tải lên: 08/08/2014, 00:22

... 10.1051/forest:2006003 Original article Nutrient status and field performance of tree seedlings planted in Mediterranean degraded areas Alejandro VALDECANTOS a,b *, Jordi CORTINA c , V. Ramón VALLEJO a a Centro ... (SL) and root collar diameter (RCD) of seedlings of Pinus halepensis and Quercus ilex 2.5 years after out- planting in eight degraded woodland...

Ngày tải lên: 08/08/2014, 00:22

... 257 Ann. For. Sci. 63 (2006) 257 266 â INRA, EDP Sciences, 2006 DOI: 10.1051/forest:2006004 Original article Light acclimation and photosynthetic response of beech (Fagus sylvatica L.) saplings under ... from zero). Means of P r and P b were 32.6% and 6.6%, for the natural regeneration, 13.5% and 2.6 % for the potted saplings in north- eastern France, an...

Ngày tải lên: 08/08/2014, 00:22

... 10.1051/forest:2003021 Original article Water relations and hydraulic characteristics of three woody species co-occurring in the same habitat Andrea NARDINI a *, Sebastiano SALLEO a , Patrizia TRIFILÒ a and Maria ... longer in hydraulic continuity with the soil [5, 12]. In view of investigating possible relationships existing between changes in hydrauli...

Ngày tải lên: 08/08/2014, 01:21

... (2003) 527537 â INRA, EDP Sciences, 2003 DOI: 10.1051/forest:2003046 Original article Shoot growth and phenology modelling of grafted Stone pine (Pinus pinea L.) in Inner Spain Sven MUTKE, Javier ... were consistent with observations in mature non -grafted stone pines. stone pine (Pinus pinea) / growth and flowering phenology / phenology mode...

Ngày tải lên: 08/08/2014, 01:21

... 10.1051/forest:2003058 Original article Growth, damage and net nitrogen uptake in Picea abies (L.) Karst. seedlings, effects of site preparation and fertilisation Fredrik NORDBORG*, Urban NILSSON Swedish University of ... following hypotheses: (i) site preparation increases seedling initial growth and reduces damage during the first year after plant...

Ngày tải lên: 08/08/2014, 01:21

... sprouting in F sylvatica seedlings in spring also depended upon prior chilling received. Fa- lusi and Calamassi (1990), also working with seedlings, found that chilling was in fact ... LD also played a role in removing dormancy and/ or initiating growth. The findings of experiment 3 supported this hypothesis. In the Casentino seedlings a LD...

Ngày tải lên: 08/08/2014, 18:21

... Light-quality and -quantity effects on monoterpene-medi- ated photo-bleaching of conifer needles J. Franzen 1 K. Gross 2 M. Bonzon 3 E. Wagner 1 Institutes of I Biology 11 and 2 Silviculture, ... and young plants with P-pinene resulted in a monoter- pene concentration- and photofluency- dependent destruction of chloroplast pig- ments resembling t...

Ngày tải lên: 09/08/2014, 04:20