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Báo cáo lâm nghiệp: "Water relations of oak species growing in the natural 2 CO spring of Rapolano (central Italy) " potx

Báo cáo lâm nghiệp:

Báo cáo lâm nghiệp: "Water relations of oak species growing in the natural 2 CO spring of Rapolano (central Italy) " potx

... in diameter), situated5 mm below and 10 mm above the heating device.Original articleWater relations of oak species growing in the natural CO 2 spring of Rapolano (central ... osmotique et une diminution de la fraction d’eau* Correspondence and reprints growing in the CO 2 spring showed increasedproduction of secondary compounds (tan-nins) and total ... CO 2 spring near Rapolano Terme (central Italy) (van Gardin-gen et al, 1995) offer the opportunity to bet-ter investigate the long-term response toconcurrent CO 2 increase...
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Báo cáo lâm nghiệp: "Water relations of cork oak (Quercus suber L.) seedlings in response to shading and moderate drought" ppt

... and inverse of osmotic potential at full turgor (Ψπ100). The x- and y-coordinates of the first data point of the linear portion of the PV curve corresponded to relative water content at the ... 66–70%, HL2: 44–50%,LL1: 13.5–16% and LL2: 5–6% of full sunlight). Water relations of cork oak seedlings 379 of the water stress conditions was assured. Analysis of variance of water content in every ... growth in young seedlings of Quercus robur L., For. Ecol. Manage. 127 (20 00) 139–151.ςςWater relations of cork oak seedlings 383 of determination (r 2 > 0.7) has been reported [3, 19], the...
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Báo cáo lâm nghiệp:"Water relations and hydraulic characteristics of three woody species co-occurring in the same habitat" pptx

... longer in hydraulic continuity with the soil [5, 12] . In view of investigating possible relationships existingbetween changes in hydraulic resistance of plants and theiradaptation to the environment, ... symbols indicate different species (see Fig. 7). The centre solid line is the linear regression and the curved dotted lines are95% confidence intervals. The coefficients of the straight line arereported ... 10, 24 ]. A previous study of some of us [17] had shown that the co- occurrence of twoMediterranean Quercus species (Q. suber L. and Q. cerris L.) in Sicily could be explained in terms of their complementarychanges...
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Báo cáo lâm nghiệp: "Water relations of adult Norway spruce (Picea abies (L) Karst) under soil drought in the Vosges mountains: whole-tree hydraulic conductance, xylem embolism and water loss regulation " ppsx

... with confidence in this paper the values of gL computed with the second technique. The changes in the flux/potential rela-tionships during the summer for one treefrom the ... 1). The agreement between the 2 methods resultedfrom the linearity of the dF/Ψleaf relation-ships (see fig 2) observed for most of the trees. Therefore, we include ... ie, the most significantdecrease was noted at the beginning of the the sap flux through the plant, the soil waterstatus and the total hydraulic conductancefrom the soil...
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Báo cáo lâm nghiệp: "Air pollution load and stand nutrition in the Forest District Jablunkov, part Nýdek" docx

... within the area of interest.e nutrient content in the soil was determined in the upper humus layer (FH) and in the mineral soil (B) to a depth of 30 cm. A part of the samples was taken by the ... soils showing the insufficiency of main nutrients remain today as the main factor affecting the forest vitality. e situation in the soil is subsequently reflected in the nutrition level of the assimilation ... decomposed in HNO3 and H 2 O 2 in the MDS -20 00 microwave system, and the con-tent of the elements is determined with an OES-ICP analyzer. A part of the results of the Central Institute for...
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Báo cáo lâm nghiệp: " Pinus pumila growth at different altitudes in the Svyatoi Nos Peninsula (Russia)" pps

... to determine the number of specimens originating generatively in extensive polycormons.Fig. 4. Mean annual linear increment of terminal branches in Pinus pumila (Pall.) Regel in the period ... K 20 04). According to O and I (1984) the height of P. pumila generally depends on the intensity of prevailing winds which cause differences in the accumulation of snow in winter. ... 0.9556190 21 0 23 0 25 0 27 0LMA (g.m 2 ) high site medium site 2 34needle age1y = 1. 823 7x - 138.08R² = 0.9556y = 0.1763x + 138.08R² = 0.1675150170190 21 0 23 0 25 0 27 0150 170 190 21 0 23 0 25 0 27 0LMA...
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Báo cáo lâm nghiệp: "Rodent-caused damage to forest trees from the viewpoint of forestry practice" potx

... while the field vole and common vole are much less harmful according to the foresters. However, this opinion concerning the significance of the individual species is in contradic-tion with the information ... stands80100 20 406080ent of damage (% stands)0 20 00 20 03 20 05 20 07ExteYear80100 20 406080ent of damage (% stands)0 20 00 20 03 20 05 20 07ExteYear 27 0 J. FOR. SCI., 56, 20 10 (6): 26 5 27 0ties: ... environment, their feeding behaviour and the damage they cause. At the beginning of the research, we conducted a survey among foresters in the form of a questionnaire with the aim to find out how they...
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Báo cáo lâm nghiệp: "Forest yield index and its applicability to the assessment of future forest yields" docx

... obtained for Scotch pine and European beech, which questions the rank-ing of Scotch pine among economic tree species, at least in the examined territory. e low accuracy of determination of the ... significant increase in radial increment of Norway spruce in Austria in the period of 1961 to 1990, during which the length of growing season increased by 11 days associated with the increase in mean ... tree growth in changing climate are the main sources of the final error. In addition, the low presence of some tree species in the source data set negatively in uenced the accuracy of the results....
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Báo cáo lâm nghiệp: "old hardiness as a factor for assessing the potential distribution of the Japanese pine sawyer Monochamus alternatus (Coleoptera: Cerambycidae) in China" pdf

... ranking the highest in adults and the lowest in the overwintering larvae. The SCP has proved to be a reliable index to estimate the cold hardiness of the beetle M. alternatus. The mean SCP of the ... 0.05).ThebarlineisS.E.Atlas of the People’s Republic of China, 20 02) . Therefore, the northern limit of the beetle distribution can be determined byecological and physiological indexes of cold ... is the lowest in a year in China, is critical for the suc-cessful winter survival of the species. Accordingly, the Januaryisotherm rather than latitude is more useful for predicting the northern...
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Báo cáo lâm nghiệp: "Radial-growth and wood anatomical changes in Abies alba infected by Melampsorella caryophyllacearum: a dendroecological assessment of fungal damage" ppt

... America [20 , 27 , 34, 42] , Europe[16, 25 , 33], and Asia [2, 28 , 37]. The first report of the disease in Spain, where A. alba reaches its SW distribution limit in Europe, was in 20 02 [22 ].Previous ... G., Ecology and ecophysiology of circum-Mediterraneanfirs in the context of climate change, Ann. For. Sci. 59 (20 02) 823 –8 32. [4] Bannan M.W., Vertical resin ducts in the secondary wood of the Abietineae, ... in early summer [8]. Nine sam-pling points, 15 .2 m apart, were marked along two intersectingtransects (5 points on one transect and 4 points on the other) in each of the 3 plots (Fig. 2) . The...
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