Báo cáo lâm nghiệp: "Intra- and interannual variations of transpiration, leaf area index and radial growth of a sessile oak stand (Quercus petraea)" doc

... chemical thinning consists in the fact that trees killed by chem- ical treatment and left in the stand to their natural Chemical thinning in blue spruce (Picea pungens Engelm.) stands and its effects ... Institute, Brandýs nad Labem, Czech Republic ABSTRACT: Chemical thinning was applied in blue spruce (Picea pungens Engelm.) stands by the appli...

Ngày tải lên: 07/08/2014, 03:22

... 70 J. FOR. SCI., 57, 2011 (2): 70–77 JOURNAL OF FOREST SCIENCE, 57, 2011 (2): 70–77 Spatially constrained harvest scheduling for strip allocation under Moore and Neumann neighbourhood ... t. In the case of strip window management, each forest stand was divided into strips following com- mon shelterwood management conventions for strip width and forest stand borde...

Ngày tải lên: 07/08/2014, 10:21

... in the research area, mean values of the estimate of the red deer population density were deter- mined in the Jelení hora hunting district in 2007 and 2008 using the FSC method, viz 24 ± 23 individuals·km –2 ... (2): 59–63 59 JOURNAL OF FOREST SCIENCE, 57, 2011 (2): 59–63 Red deer density in the air-polluted area of forest ecosystems in the...

Ngày tải lên: 07/08/2014, 10:21

... verified in future studies. The mean wood density of a ring is a composite of several intra-ring components, including wood density of early- and latewood and width of early- and latewood, that ... cumulated ring properties of poplar hybrids: (a) ring width and mean wood density, (b) ring width and minimum wood density, (c) ring width and maximum wo...

Ngày tải lên: 07/08/2014, 16:20

... explains intra-tree-ring wood density change, and (2) sorting out tracheid anatomical characteristics in order of im- portance. The work was carried out with Douglas fir (Pseudotsuga menziesii (Mirb.) ... between wood den- sity and tracheid characteristics along a tree-ring, i.e. on intra- tree-ring variations. However, it is also interesting from these...

Ngày tải lên: 07/08/2014, 16:20

... were higher in the inland area than in the coastal area (Tab. I). Val- ues of mean sensitivity and standard deviation were higher for latewood than for earlywood and tree-ring width at each area. In both ... temper- ature in August had a negative effect on latewood formation, in the coastal and inland area. Climatic significance of IADFs in Pinus pinea 233 Fig...

Ngày tải lên: 07/08/2014, 16:20

... petraea Liebl.) site index variations in relation to climate, topography and soil in even-aged high-forest stands in northern France Laurent BERGÈS a *, Richard CHEVALIER a , Yann DUMAS a , Alain ... water and nutrient budgets in predicting site index variations The climate/water-related factors and nutrient-related fac- tors explained 0 to 25...

Ngày tải lên: 08/08/2014, 00:22

... cost associated to leaf area renewal in saplings of two co-occurring temperate tree species (Acer platanoides L. and Fraxinus excelsior L.) along a light gradient Sandrine BARTHOD a , Daniel ... leaf mass per unit area, LMA) to the cost associated with leaf area renewal (construction cost of the leafy shoot per unit leaf...

Ngày tải lên: 08/08/2014, 00:22

... 831 Ann. For. Sci. 62 (2005) 831836 â INRA, EDP Sciences, 2005 DOI: 10.1051/forest:2005089 Original article Aboveground biomass relationships for mixed ash (Fraxinus excelsior L. and Ulmus glabra Hudson) ... – About 5% of forest area of Friuli Venezia Giulia (Italy) is covered by mixed ash stands. In most cases, these are secondary forest establishe...

Ngày tải lên: 08/08/2014, 00:22

... 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

... 1929 â INRA, EDP Sciences, 2003 DOI: 10.1051/forest: 2002070 Original article Intra- and interspecific variations of polycyclism in young trees of Cedrus atlantica (Endl.) Manetti ex. Carrière and ... variability Résumé – Variations intra- et interspecifiques du polycyclisme chez de jeunes arbres de Cedrus atlantica (Endl.) Manetti ex. Carrière...

Ngày tải lên: 08/08/2014, 01:21

... in Scots pine (Pinus sylvestris) , Tree Physiol. 20 (2000) 145–157. [19] Kocon J., Occurrence and structure of the reaction wood of the European larch (Larix europaea DC) and of Scots pine (Pinus sylvestris ... shrinkage and resin content of the wood in and around knots in Swedish pine (Pinus sylvestris L.), and in Swedish spruce (Picea abies Kars...

Ngày tải lên: 08/08/2014, 01:21

... analysis for tree FV1: (A) skeleton of the standing tree; (B) reconstruction of the tree shape and of the sampled discs; (C) disc measurements of tension wood; loca- tion of the pith (M), the disc ... occurrence of compres- sion wood. The objective of this paper is to present the method devel- oped in our laboratory to measure the geometry of...

Ngày tải lên: 08/08/2014, 01:21

... availability. In this study we analysed the leaf traits and patterns of gas- exchange during the well-watered part of the growth season in mature trees and seedlings of three co-occurring Quercus ... However, in our case it seems that the interspecific differences in leaf life span show a smaller effect on the phys- iological differences at leaf level in...

Ngày tải lên: 08/08/2014, 01:21

... of May on a sample of ten control and 15 thinned trees from each plot Original article Intra- and interannual variations of transpiration, leaf area index and radial growth ... of transpiration were successively analysed as a consequence of i) seasonal and annual variations in leaf area index and ii) soil water balance. F...

Ngày tải lên: 08/08/2014, 18:21