Báo cáo lâm nghiệp: "Forest yield index and its applicabilit

Báo cáo lâm nghiệp: "Forest yield index and its applicability to the assessment of future forest yields" docx

... role in projecting future multi-functional forests is to harmonize the requirements for the Forest yield index and its applicability to the assessment of future forest yields L. K 1,2 , ... Examples of relative yield assessment in assumed conditions of even-aged, fully stocked forest stands, for the main types of target forests and most fre...

Ngày tải lên : 07/08/2014, 10:21

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Báo cáo lâm nghiệp: "Air pollution load and stand nutrition in the Forest District Jablunkov, part Nýdek" docx

... After the pollutant concentrations in the air decreased, the main factor aﬀecting the forest stands is the state of forest soils which shows the insuﬃciency of the main nutrients available, and ... performed soil analyses. In the humus layer of the two stands, the amounts of Ca were comparable, however, the total amount of this element was higher in t...

Ngày tải lên : 07/08/2014, 10:21

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Báo cáo lâm nghiệp: "Diﬀerential photosynthetic and survival responses to soil drought in two evergreen Nothofagus species" docx

... stress. Acknowledgements: We thank the staﬀ of the Instituto de Botánica of the Universidad Austral de Chile for their logistic support and maintenance of the experiment, E. Gianoli for use of his IRGA and The Nature ... 684−695. [19] Read J., Hill R.S., Photosynthetic responses to light of Australian and Chilean species of Nothofagus and their relevance to...

Ngày tải lên : 07/08/2014, 16:21

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Báo cáo lâm nghiệp: "Variations in seed and seedling responses to water stress in three provenances of Eucalyptus camaldulensis Dehnh" pptx

... in the production of hairs on the collar of ger- minating seedlings (Fig. 1 which bind the III seedling firmly to the soil and assist early water uptake. Shoot growth of ... matter into leaves at the expense of roots, whereas the reverse situation prevailed in seedlings from the other 2 provenances. The proportion of dry matter d...

Ngày tải lên : 09/08/2014, 04:20

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báo cáo hóa học:" Daily physical activity and its contribution to the health-related quality of life of ambulatory individuals with chronic stroke" pot

... determine the contribution of daily PA to the HRQL of individuals with chronic stroke liv- ing in the community and 2) to assess the relationship between the functional ability (motor impairments of lower ... extremity, balance and walking distance) of these individuals to the amount of daily PA they undertake. This will enhance our understanding and identify...

Ngày tải lên : 20/06/2014, 16:20

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Báo cáo lâm nghiệp: "Sustainable cutting cycle and yields in a lowland mixed dipterocarp forest of Borneo" docx

... share of the species group in the basal area of all stand. Each value is the average over the 11 to 14 subplots of the group of damage of the mean proportion over a complete cutting cycle in the stationary ... by: Y(t) = 1’Y(t) and B(t) = Y(t) where 1 is the vector of length 22 whose all elements equal unity, and is the vector of the average basal are...

Ngày tải lên : 08/08/2014, 01:21

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Báo cáo lâm nghiệp: "Litterfall, nutrient return, and leaf-litter decomposition in four plantations compared with a natural forest in subtropical China" ppt

... multi-peak. The highest annual Ca and Mg returns were noticed in the FH and in the CK, respectively. The amounts of N, P, and K which potentially returned to the soil were the highest in the NF. The ... range of subtropical broadleaved forests, except that of K in the CK [9, 23, 44, 52]. Compared with the CK, the OX had much lower return of K and Mg. T...

Ngày tải lên : 08/08/2014, 01:22

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Báo cáo lâm nghiệp: "Picea glauca dynamics and spatial pattern of seedlings regeneration along a chronosequence in the mixedwood section of the boreal forest" potx

... section of the boreal forest. Further, we quantitatively characterize the spatial pattern of seedlings and the importance of seedbed conditions to the success of recruitment and survival of white spruce ... L.) and dewberry (Rubus pubescens Raf.) [4, 37] With the use of forest inventory and topographic maps, 35 stands were selected in and around the Pr...

Ngày tải lên : 08/08/2014, 01:22

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Báo cáo lâm nghiệp: "Modelling canopy conductance and stand transpiration of an oak forest from sap flow measurements " docx

... properties of the canopy, and the latter is considered as the sum of the stomatal conductance of all the leaves, according to the ’big-leaf’ hypoth- esis. When stand transpiration ... évapotranspiration INTRODUCTION Transpiration of a forest depends on inter- actions between a number of variables, some being the physical characteristic...

Ngày tải lên : 08/08/2014, 18:21

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Báo cáo lâm nghiệp: " Root system development and health condition of sycamore maple (Acer pseudoplatanus L.) in the air-polluted region of Krušné hory Mts" ppt

... maple is one of the noble broadleaved species. Its representation in the existing species composition of forest stands being rather low, the study of the species and mainly of its root system ... corroborate the statements of the authors according to whom the sycamore maple mainly roots into a depth during the initial stages and the development of...

Ngày tải lên : 07/08/2014, 04:20

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