Báo cáo lâm nghiệp:"Water relations and hydraulic characteri

Báo cáo lâm nghiệp:"Water relations and hydraulic characteristics of three woody species co-occurring in the same habitat" pptx

... 10.1051/forest:2003021 Original article Water relations and hydraulic characteristics of three woody species co-occurring in the same habitat Andrea NARDINI a *, Sebastiano SALLEO a , Patrizia TRIFILÒ a and Maria ... longer in hydraulic continuity with the soil [5, 12]. In view of investigating possible relationships existing between changes in hydrauli...

Ngày tải lên : 08/08/2014, 01:21

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Báo cáo lâm nghiệp: " Humus conditions and stand characteristics of artificially established young stands in the process of the transformation of spruce monocultures" pdf

... moder in the unmixed spruce stand and mixed stands, mull-moder in the unmixed beech stand (according to N et al. 2001). The high accumulation of humus in H horizon in the mixed stand of ... than in the spruce stand. e main indicator of the biomass decomposi- tion rate is just the content of nitrogen and N/C ratio, which is given by the close...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "Modelling height and diameter growth of dominant cork oak trees in Spain" ppt

... the parameters of the function were related to other tree and stand features, but the form of the original function remained the same [13, 23]. The site index was defined using the height growth ... by omitting each observation in turn from the data, fitting the model to the remaining observations, predicting the response for the omitted observation and com...

Ngày tải lên : 08/08/2014, 00:22

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Báo cáo lâm nghiệp: "Biomass increment and carbon balance of ash (Fraxinus excelsior) trees in an experimental stand in northeastern France" docx

... were obtained (in the same way as for branch increment samples). As the relative volume increments of the increment samples (ratio of the volume increment (dV 95 ) to the volume of the samples ... by hand only partially, and then, remaining leaves had to be collected in a net enclosing the crown as and when they were naturally falling until the end of leaf fal...

Ngày tải lên : 08/08/2014, 01:22

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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

... noted at the beginning of the the sap flux through the plant, the soil water status and the total hydraulic conductance from the soil to the leaves. It is therefore necessary ... high scaffoldings to give access to the crown of the trees. The summer drought was increased in the "dry" treat- ment by restraining external...

Ngày tải lên : 08/08/2014, 18:21

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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

... (RWC a ) and inverse of osmotic potential at full turgor (Ψπ 100 ). 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 ... using the Pearson (r) coefficient, and considering the individual values of all seedlings. Linear regressions of osmotic potential at full turgor (Ψπ 100 ,...

Ngày tải lên : 08/08/2014, 00:22

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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

... the same dimension selected for the experiment both in the CO 2 spring and in the control site. In July (just before the second day of mea- surements), the amount of xylem ... and two thermistor probes (1.8 mm in diameter), situated 5 mm below and 10 mm above the heating device. Original article Water relations of oak speci...

Ngày tải lên : 08/08/2014, 18:21

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Báo cáo lâm nghiệp: "Water movement and its resistance in young trees of Cryptomeria japonica" pot

... that the measuring point for water flow should be located in the middle of the range of the points for water potential. Therefore, in the following experiment, the water ... between water flow in the canopy and in the stem. Furthermore, using the data of water flow in the stem, there was a larger diurnal variation of...

Ngày tải lên : 09/08/2014, 04:20

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Báo cáo lâm nghiệp: "Production potential and ecological stability of mixed forest stands in uplands – VI. A beech/larch stand on a mesotrophic site of the Křtiny Training Forest Enterprise" pot

... proportion of larch slightly decreased, nevertheless, the species has taken up steadily 35% of the reduced stand area in the last 20 years. On the other hand, the proportion of the second main species, ... m 3 /ha/year). In the next years, it will be of inte- rest to compare the trend of current increments of both species. Similarly like in basal ar...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "Soil environment and nutrient status of Norway spruce (Picea abies [L.] Karst.) underplantings in conditions of the 8th FAZ in the Hrubý Jeseník Mts" potx

... mg·kg –1 . In the subsequent organomineral horizon (Ae/Ep) the values of Ca indicate the lower optimum reserves in the range of 80–160 mg·kg –1 , and in 15% of the studied plots the content of soil ... 149 derplantings increases with a decreasing content of these nutrients in needles. An opposite correlation was determined for aluminium: with an increasing...

Ngày tải lên : 07/08/2014, 10:21

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