Báo cáo lâm nghiệp:"The d13C of Scots pine (Pinus sylvestris L ) needles: spatial and temporal variations" pps
Báo cáo lâm nghiệp:"The d13C of Scots pine (Pinus sylvestris L.) needles: spatial and temporal variations" pps
... 10.1051/forest:2003001 Original article The d 13 C of Scots pine (Pinus sylvestris L. ) needles: spatial and temporal variations Oliver Brendel*, Linda Handley and Howard Griffiths Scottish Crop ... in Scots pine (Pinus sylvestris) , Tree Physiol. 20 (200 0) 145–157. [19] Kocon J., Occurrence and structure of the reaction wood of the European larch...
Ngày tải lên: 08/08/2014, 01:21
Báo cáo lâm nghiệp:"Optimising the management of Scots pine (Pinus sylvestris L.) stands in Spain based on individual-tree models" potx
... MATERIALS AND METHODS 2.1. Simulation model 2.1.1. Initial stand The simulation model accepts two alternative ways of describing the stand and to initialise the simulation – a list of trees in a plot ... model for Scots pine (Pinus sylvestris L. ) in north-east Spain, For. Ecol. Manage. (submitted). [23] Palahí M., Pukkala T., Miina J., Montero G., Individual-tree gro...
Ngày tải lên: 08/08/2014, 01:21
Báo cáo lâm nghiệp: "The influence of acid mist upon transpiration, shoot water potential and pressure—volume curves of red spruce seedlings" pot
... eds .), NATO ASI Series, Springer-’Verlag, Berlin, pp. 83-99 Kim J.M. & Lee-3tadelmann O.Y. (198 4) Water relations and cell wall elastic quantities in Phaseolus vulgaris leaves. ... - 858 McLaughlin S.B. (198 5) Effects of air pollution on forests. A criiical review. J. Air Pollut. Con- trol Assoc. 35, 5!; 2-532 Stadelmann E.J. (198 4)...
Ngày tải lên: 09/08/2014, 04:20
Báo cáo lâm nghiệp: "Modelling branchiness of Corsican pine (Pinus with mixed-effect models nigra Arnold ssp. laricio (Poiret) Francis" pps
... branches were living; crown length 1 (CL): CL = TH - HLLB (in m); crown length 2 (HLLWA): HLLWA = TH - HLLW (in m); length between the lowest living whorl and the lowest living ... of mixed models which improves both modelling and simulation of the vertical profiles of angle, diameter and length of branch for Corsican pine. 2. MATERIAL...
Ngày tải lên: 09/08/2014, 04:20
Báo cáo lâm nghiệp: "An economic aspect of conversion of Scots pine (Pinus sylvestris L.) stands in the Polish Lowland" docx
... case of imma- ture stands, their full production potentials can be wasted. On the other hand, stands well-adapted to a given site are usually more stable and allow obtaining higher numbers of ... rate of the mean value of pine stands from unsuitable sites is initially greater than that of oak stands but these relationships get reversed at older age. – e mean value of p...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: " The applicability of the Pipe Model Theory in trees of Scots pine of Poland" ppsx
... parameters and the vol- ume of the assimilation apparatus (L 196 6). A total of 114 model trees were selected and felled in the experimental plots. ey were pines with healthy, straight stems and ... class S V /C H 0.12 0.11 0.10 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0.00 –0.01 Biological tree class I Biological tree class II Biological tree class III Fig. 7. Mean va...
Ngày tải lên: 07/08/2014, 10:22
Báo cáo lâm nghiệp: "The effect of nitrogen content on the of Scots pine needles and shoots photosynthesis" doc
... shoot (Oker- Blom and Smolander, 198 8). Materials and Methods One yr old experimental shoots were collected from 5 young Scots pine (Pinus sylvestris L. ) stands in Suonenjoki ... A randomly selected shoot from the uppermost whorl of each tree was used in measurements of photosynthesis. Morphological characteristics and silhouette to...
Ngày tải lên: 09/08/2014, 04:20
Báo cáo lâm nghiệp: "The results of manipulated experiments with inoculation of Ips typographus (L., 1758) to spruce trees under various levels" potx
... Assessment of site characteristics as predictors of the vulnerability of Norway spruce (Picea abies Karst .) stands to attack by Ips typographus L. (Col., Scolytidae). Journal of Applied Entomology, ... středohor. Lesnická práce, 81: 106–109. KANDLER O., INNES J .L. , 1995. Air pollution and forest decline in Central Europe. Environmental Pollution, 90: 171–180. LINDELÖW...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "The influence of irradiation on the behaviour and reproduction success of eight toothed bark beetle Ips typographus (Coleoptera: Scolytidae)" doc
... ȱ=ȱ5 a a a a a b a a a a b a a a a 0 10 20 30 40 50 60 70 80 Size of mating chamberȱ(mm ) Lenght of mother tunnelȱ(mm) Number of eggsȱper motherȱtunnel Number of larvae perȱmotherȱtunnelȱ Lenght of larvae tunnelȱ(mm) Control 15Gy 30Gy 2 J. ... feral population with large numbers of sterile individuals (mostly males). When there is a high flooding ratio of sterile over feral individu- a...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "The use of silica sand in micropropagation of woods" pot
... completely sterilized in an autoclave (K et al. 196 7). Logically, we have come to the conclusion that chemically stable siliceous sand with numerous advantages could be an aid to resolving ... Kostelec nad Černými lesy. Low pH and high levels of phytohormones can bear interesting results by cultures in vitro, especially in somatic embryogenesis of Abies hybrids and Ul...
Ngày tải lên: 07/08/2014, 03:22