Báo cáo lâm nghiệp: "Eﬀects of selective thinning on growth

Báo cáo lâm nghiệp: "Eﬀects of selective thinning on growth and development of beech (Fagus sylvatica L.) forest stands in south-eastern Slovenia" docx

... types of selective thinning have been studied, such as group selective thinning [22], and the consequences of early and late thinning [18, 23]. Classical selective thinning according to Schädelin ... smaller number of crop (selected) trees in the ﬁrst thinning and thinning intensities, taking account of economical factors [46, 51]. In Slovenia, selective...

Ngày tải lên : 07/08/2014, 16:20

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Báo cáo lâm nghiệp: "Eﬀects of microsite variation on growth and adaptive traits in a beech provenance trial." pps

... spa- tial arrangement of blocks used was very ineffi cient in handling the microenvironmental variation within the trial site. All blocks are clearly heterogeneous with respect to all environmental ... variation within populations and/ or environmental variation on very small scales. Analysis of covariance confi rmed the expected signifi cant provenance eff ect on all traits (Tab...

Ngày tải lên : 07/08/2014, 10:21

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Báo cáo lâm nghiệp: "Eﬀects of drought and heat on forest insect populations in relation to the 2003 drought in Western Europe" ppt

... region did not materialize. Conversely, exceptionally high population levels of the beech woolly aphid, Phyllaphis fagi L. were observed in 2004 (Fig. 2) following a period of latency of several ... level or population increase; (+ +) = important but local damages or no changes in population level; ( +) = local damages with low population level; ( ) = population decre...

Ngày tải lên : 07/08/2014, 16:20

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Báo cáo lâm nghiệp: "Eﬀects of the clear-cutting of a Douglas-ﬁr plantation (Pseudotsuga menziesii F.) on the chemical composition of soil solutions and on the leaching of DOC and ions in drainage waters" pps

... Eﬀects of clear-cutting on soil solutions and ecosystem functioning In the soil upper layers, ZTL and TL solutions changed in diﬀerent ways: the concentration of elements in ZTL solutions strongly ... collected: (i) gravitational solutions using zero-tension plate lysimeters (ZTL) made up of polyethylene because they are the solutions really drained out of the soil, and,...

Ngày tải lên : 07/08/2014, 16:20

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Báo cáo lâm nghiệp: "Eﬀects of soil mechanical treatments combined with bramble and bracken control on the restoration of degraded understory in an ancient beech forest" pptx

... Soil Till. Res. 53 (199 9) 41−47. [2] Aura E., Eﬀects of shallow tillage on physical properties of clay soil and growth of spring cereals in dry and moist summers in southern Finland, Soil Till. ... conventional and zero tillage in two soils of the Rolling Pampa of Argentina, Soil Till. Res. 49 (199 8) 57−63. [61] Ter Braak C.J.F., Gremmen N.J.M., Ecological am...

Ngày tải lên : 07/08/2014, 16:20

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Báo cáo lâm nghiệp: "Eﬀects of resource availability on condensed tannins and nitrogen in two Quercus species diﬀering in leaf life span" doc

... effects of light, nutrients and species on leaf CT, N and growth under a fixed level of water (W80 0). The sources of variation are light levels (L8 , L3 6), nutrient levels (N−,N +) and species (Q. ilex, ... (carbon source) and growth (carbon sink) with different intensity will affect the relative carbon pool available for allocation to carbon-based compounds. Ac...

Ngày tải lên : 07/08/2014, 16:21

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Báo cáo lâm nghiệp: "Effect of stand segmentation on growth and development of Norway spruce stands" pps

... the only one of all of them, is situated perpendicularly to the direction of prevailing winds, in contradiction to plot 3 where the skidding track follows the direction of prevailing winds. J ... 2009 ( 7): 323–329 confirmed under conditions of this investigated locality. CONCLUSION Based on the analysis of a part of results from the international IUFRO trial C...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "Drought conditioning improves water status, stomatal conductance and survival of Eucalyptus globulus subsp. bicostata seedlings" ppt

... observed among prove- nances of several Eucalyptus [25, 42], between and within subspecies of E. globulus [15, 54], as well as among clones of E. globulus subsp. globulus [34]. After preconditioning we ... Veilleux L. , Bernier P.Y., Growth, physiology, root architecture and leaching of air-slit containerized Picea glauca seedlings (1+ 0) in response to time domain reﬂectro...

Ngày tải lên : 07/08/2014, 16:20

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Báo cáo lâm nghiệp: "Eﬀect of Melampsora larici-populina on growth and biomass yield of eight clones of Populus nigra" ppsx

... clones from each other in the best way as for the intensity of rust infection. Yield decline was quite low (9 %) in clone 49, which belonged to the most infected clones. Similarly, in clone ... and beginning of August). Evaluation  e trait of resistance to Melampsora larici- populina was evaluated in ﬁ eld conditions using a 6-point scale: 0 – no signs of rust infect...

Ngày tải lên : 07/08/2014, 10:21

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Báo cáo lâm nghiệp: "Eﬀect of species composition, stand density and site index on the basal area increment of oak trees (Quercus sp.) in mixed stands with beech (Fagus sylvatica L.) in northern France" potx

... to the individual trees [9]. In addition, our dataset is not based on crop-tree selection thinnings, but on stand-related thinning regimes. This partly explains the linear relation of ∆g and DBH ... simulations to analyze the behaviour of the model [60]. All graphic and statistical analysis was realised with SAS [51]. 4. RESULTS The segmented nonlinear model (Eq. ( 1)) ﬁt...

Ngày tải lên : 07/08/2014, 16:20

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Báo cáo lâm nghiệp: "Eﬀects of selective thinning on growth and development of beech (Fagus sylvatica L ) forest stands in south-eastern Slovenia" docx

Báo cáo lâm nghiệp: "Eﬀects of selective thinning on growth and development of beech (Fagus sylvatica L.) forest stands in south-eastern Slovenia" docx

Báo cáo lâm nghiệp: "Eﬀects of microsite variation on growth and adaptive traits in a beech provenance trial." pps