Báo cáo lâm nghiệp: " Effect of the root temperature on growth parameters of various European tree species" ppsx

... 82–88 in Růžová hora the average decrease was 0.70 g, in Sněžka 0.81 g (Fig. 5). Changes in the parameters within the years 2004–2006 Data on mycorrhizal status of roots obtained from spring ... approximately in the same distance (about 1 m) from the stem of five selected trees. e cylinder of the soil probe used for this purpose had the inner diameter of...

Ngày tải lên: 07/08/2014, 03:22

... 6215648902. Contribution to the knowledge of Clethrionomys glareolus populations in forests of managed landscape in Southern Moravia (Czech Republic) J. S Faculty of Forestry and Wood Technology, ... found in southern Moravian forests as exerted by the bank vole gnawing the stems of young trees. In controlled forests 40% of young o...

Ngày tải lên: 07/08/2014, 03:22

... international IUFRO experiment dealing with the ra - tionalization of young spruce stand tending (A 1977). One part of this series, Machov CZ 14 experi- Effect of stand segmentation on growth and ... values (mean and standard deviation) of stand volume (open triangles) and volume of mean stem (grey circles) of spruce stands in Machov experiment at the...

Ngày tải lên: 07/08/2014, 03:22

... respect to damage to forest stands. In the present paper, the population dynamics of As is described in larger forest complexes of southern Moravia depending on the biotope and food supply including ... (Apodemus sylvaticus) . Journal of Zoology (London), 198: 83–102. SUCHOMEL J., 2007. Contribution to the knowledge of Clethrionomys glareolus populatio...

Ngày tải lên: 07/08/2014, 03:22

... Republic ABSTRACT: The effect of ethephon (80, 100 and 120 mg·l –1 ) and gibberellic acid (GA 3 ) (40, 300 and 1,000 mg·l –1 ) on the germination capacity (GC) and mean germination time (MGT) of European beech ... of the present paper was to deter- mine the effect of gibberellic acid and ethephon on overcoming beechnut dormancy and stimulati...

Ngày tải lên: 07/08/2014, 10:21

... the effect of climatic factors on radial increments of trees e effect of climatic factors on radial increments of trees was studied in detail by means of corre- lation analysis on standardized ... correlation models of the effect of climatic factors on radial increments of trees After performing the detailed analysis of pair cor- relation...

Ngày tải lên: 07/08/2014, 10:21

... Functions in Anthropically Disturbed Biotopes in Changing Environmental Conditions. Effect of initial height of seedlings on the growth of planting material of Norway spruce (Picea abies [L.] Karst.) ... growing seedlings from a mountain population of Norway spruce after their planting in extreme mountain conditions compared to the...

Ngày tải lên: 07/08/2014, 10:21

... difference in the index was confirmed in the spruce virgin forest in the altitudi- nal range of 1,300–1,400 m. e analysis of the structure of the spruce virgin forest in Nefcerka NNR assessed according ... Education of the Slovak Republic, Project No. 0082-06. A change in structural diversity and regeneration processes of the spr...

Ngày tải lên: 07/08/2014, 10:22

... correlation between the aboveground parameters and the depth of root plates in spruce trees growing both in waterlogged and in well-drained sites. According to our results, it seems that the roots of ... 353 JOURNAL OF FOREST SCIENCE, 56, 2010 (8): 353–360 Relationships between the parameters of aboveground parts and the parameters of...

Ngày tải lên: 07/08/2014, 10:22

... evaluated by plots of residuals against measure- ment years and natural-geographical regions of Denmark according to Jakobsen [22]. In addition to the visual appraisal of the errors a number of ... is often a limited amount of data available for esti- mating the site-specific parameter. We employed a sensitivity analysis to assess the importance of the available amount...

Ngày tải lên: 07/08/2014, 16:21

... on the diameter growth of Norway spruce and aspen in mixed stands: a case study from the southern Russian taiga Fyodor TATARINOV a, b,c *, Yury BOCHKAREV d , Alexander OLTCHEV a, e , Nadezhda ... Stand seasonal growth pattern in 2000 Seasonal increment of basal area in spruce represented over 80% of the entire stand basal area increment (a...

Ngày tải lên: 08/08/2014, 00:22

... Lebanon [2, 9, 31]. The effects of tube shelters on growth were determined using the number and the lenght of growth phases of the stem. So, we compared the growth of individuals in tube shelters ... to the position of the growth unit in the tube. Firstly, the 1997 growth units inside the tube don’t show a significative difference on thei...

Ngày tải lên: 08/08/2014, 01:21

... (1992) Effects of root temperature on growth and photosynthesis in conifer seedlings during shoot elongation. Tree Phys- iol 10, 217-230 Short note Effect of the root temperature ... European forest tree species have been investigated regarding the reaction of growth of shoots, roots and leaves during an incubation of the root...

Ngày tải lên: 08/08/2014, 18:21

... between the stand of intense thinning and the stands of conservative thinning and old forest. The yields the most information about forest structure. Nevertheless, and for the ... coppicing through selective cutting at intervals of approximately Original article Effect of site quality and thinning management on the structure o...

Ngày tải lên: 08/08/2014, 18:21

... large pro- Effect of soil temperature upon the root growth and mycorrhizal formation of white spruce (Picea glauca (Moench) Voss) seedlings grown in controlled environments L. ... and root morphology of white spruce seedlings were examined in a controlled environ- ment. A companion study evaluated ef- fects of root...

Ngày tải lên: 09/08/2014, 04:20