Báo cáo lâm nghiệp: " Stand growth model using volume increm

Báo cáo lâm nghiệp: " Stand growth model using volume increment/basal area ratios" pot

... addition, these variables should be of easy measurement and understanding, and should Stand growth model using volume increment/basal area ratios G. J. M P 1 , J. M. C 2 , M. V. ... estimate growths using biometric models previously developed. e growth values of each plot during the last twenty years were calculated to ﬁt the model, using the ratio of...

Ngày tải lên : 07/08/2014, 10:21

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Báo cáo lâm nghiệp: "A growth model for Pinus radiata D. Don stands in north-western Spain" doc

... Transition function for stand basal area growth The GADA was used to develop a function for projecting stand basal area. This requires having an initial value for stand basal area at a given age, ... addition, model errors in inventory data may be magniﬁed by individual-tree models but remain less al- tered by simpler models such as whole -stand models. In sum- mary, whole -st...

Ngày tải lên : 07/08/2014, 16:21

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Báo cáo lâm nghiệp: "Stand structure, competition and growth of Scots pine (Pinus sylvestris L.) in a Mediterranean mountainous environment" pptx

... 826 A. García-Abril et al. Table I. Stand area, climatic, topographic and soil type data of the four Scots pine stands studied. Stand Stand area (ha) P (mm) PDP (mm) DD (months) Slope ... basal area growth of Scots pine in the uneven-aged stand than in the even-aged stand and the plan- tation. Additional research using this kind of approach might be warranted, and the eﬀects...

Ngày tải lên : 07/08/2014, 16:21

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Báo cáo lâm nghiệp: "The allometric model in the stand density management of Pinus pinaster Ait. in Portugal" ppsx

... line. Keeping the stand path in the 35 to 55% interval means that the site is fully used and the self-thinning is probably avoided. Total stand volume harvested is maximized, although tree growth is ... intensity on tree and stand variables development. The heavier the thinnings regimes, the higher the tree variables (average dg and tree volume growth) and the lower the stand v...

Ngày tải lên : 08/08/2014, 01:22

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Báo cáo lâm nghiệp: "Current possibilities of using Norway spruce (Picea abies [L.] Karst.) in forest regeneration in the air-polluted region of the northeastern Krušné hory Mts" doc

... artificial stands on small-sized J. FOR. SCI., 55, 2009 (8): 376–386 385 clearcuts did better than the artificial stands in other stand situations in the Krušné hory Mts. and exhibited equal growth ... regression model. RESULTS AND DISCUSSION Underplanting in the existing stands of Norway spruce and European white birch Growth parameters of underplanted crops were conspicuously affe...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "Stand biometry and leaf area distribution in an old olive grove at Andria, southern Italy" pptx

... a scheme given by the model are certainly not identical, but they all illustrate the situation. 3.4. Leaf distribution at the stand level At the stand level, maximum leaf area within one 0.5 m layer ... tree and stand area unit (1 ha) with stocking density of 132 trees ha −1 with corresponding standard deviation for appropriate variables are given. Biometric parameter Mean tree (U...

Ngày tải lên : 07/08/2014, 16:21

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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

... reduction of radial growth (20%) in symptomatic trees was observed during 1983–2002, when xylem showed frequent traumatic resin ducts. During the year before growth, the radial -growth loss was positively ... intensity, incidence and effects of this disease on tree growth is necessary. Some evidence suggests that broom rust on branches can reduce tree volume growth [34], but this is...

Ngày tải lên : 08/08/2014, 00:22

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Báo cáo lâm nghiệp:"Stand history and its consequences for the present and future dynamic in two silver fir (Abies alba Mill.) stands in the high Pesio Valley (Piedmont, Italy)" potx

... disturbance history of the forest stands investigated: the logging chronologies of the forests where the study areas were situated, the releases in radial growth that occurred in the silver fir stands, and the ... rather than volume) and, according to interviews carried out with local workers, all the figures are underestimated. Stand history and forest dynamic 365 diametric classes: in...

Ngày tải lên : 08/08/2014, 01:21

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Báo cáo lâm nghiệp:"Shoot growth and phenology modelling of grafted Stone pine (Pinus pinea L.) in Inner Spain" potx

... Occasional summer shoot Secondary growth Needle growth Flowering (x = pollination) x 2nd year cone growth 3rd year cone growth Growth and phenology modelling of Stone pine 537 [10] Caraglio ... emerging functional-structural growth modelling needs a deeper view in environment-plant interaction to gain accuracy [31, 33]. Whereas traditional forest modelling methods analysed s...

Ngày tải lên : 08/08/2014, 01:21

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Báo cáo lâm nghiệp: "Oak growth, development and carbon metabolism in response to water stress" pps

... deficiencies on the growth, gas exchange and water relations of red oak and chest- nut oak. Tree Physiol 11, 271-287 Kleinschmit J (1993) Intraspecific variation of growth and adaptive ... 65-78 Kozlowski TT (1982a) Water supply and tree growth. I. Water deficits. For Abs 43, 57-95 Kozlowski TT (1982b) Water supply and tree growth. II. Flooding....

Ngày tải lên : 08/08/2014, 18:21

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