Báo cáo lâm nghiệp: "An economic aspect of conversion of Scots pine (Pinus sylvestris L.) stands in the Polish Lowland" docx

... al. Hydroxycinnamoyltransferases from Scots pine FEBS Journal 272 (2005) 14151424 ê 2005 FEBS 1421 Flavonol 3-O-glycoside hydroxycinnamoyltransferases from Scots pine (Pinus sylvestris L.) Florian ... and Discussion Detection of HCT activities in cell extracts from Scots pine needles Cell extracts from developing needles of Scots pine trees were assaye...

Ngày tải lên: 23/03/2014, 13:20

... assort- ments with the potential income possible to obtain An economic aspect of conversion of Scots pine (Pinus sylvestris L.) stands in the Polish Lowland A. W 1 , R. J 1 , G. R 1 , ... beginning has been fixed on the basis of the relation of the value of wood increment from the stands which need conversion to the value o...

Ngày tải lên: 07/08/2014, 03:22

... Results of studies have indicated that some quantitative aspects of beetle feeding in Feeding ecology of pine shoot beetles (Tomicus spp.) in tree crowns of Scots pine (Pinus sylvestris L.) stands ... distribution of losses in growth of trees caused by the feeding of pine shoot beetles Tomicus piniperda and T. minor (Col., Sco...

Ngày tải lên: 07/08/2014, 04:20

... t in 1998/99 and 74.9 t in 2000/01 (DFO 2002). Of the total amount of asparagus exported from Nepal, the An estimation of willingness to pay for asparagus (Asparagus racemosus Willd.) collectors ... Pre-testing of questionnaire and its final set- ting. Before formulating the exact wording of the question, two meetings of collectors were organized...

Ngày tải lên: 07/08/2014, 10:21

... 10.1051/forest:2006052 Original article Mycorrhizal associations of nursery grown Scots pine (Pinus sylvestris L.) seedlings in Poland Michał I ´ ,MariaR * ,TomaszL  Institute of Dendrology, ... amendments are a common nursery practice, it is likely that P. fortinii is beneficial for pine seedlings in nursery conditions. Mycorrhizal fungi...

Ngày tải lên: 07/08/2014, 16:20

... effect of land use change on the canopy structure and the understory light of a Holm oak woodland in central Spain. The woodland studied had two dis- tinct zones, one where the original woodland structure ... mean height of individual Holm Tab le I. Mean and standard deviation (SD) of canopy height, number of stems and basal area for the 900 1-m 2 sampling point...

Ngày tải lên: 07/08/2014, 16:20

... the undocumented ecophysiological responses of pure American chestnut to water stress, and the approaching reintroduction of resistant hybrids, the timing is right to assess the ability of the species to survive ... efficiency of American chestnut seedlings increases in response to water stress regard- less of the environment under which the seedlings were grown. Thi...

Ngày tải lên: 07/08/2014, 16:20

... 10.1051/forest:2007036 Original article An integrated analysis of 33 Eucalyptus trials linking the onset of competition-induced tree growth suppression with management, physiographic and climatic factors Keith M. ... burning) and the interaction between these two factors were significantly related to the timing of tree growth suppression. Rega...

Ngày tải lên: 07/08/2014, 16:21

... GHG- related effects of an increased use of wood within technosphere. One important effect of an increased use of wood was neglected: the decline of the carbon storage in the forests because of an increased ... article Carbon pool and substitution effects of an increased use of wood in buildings in Switzerland: first estimates...

Ngày tải lên: 08/08/2014, 00:22

... site. The comparison of predator/prey ratios between sites and years was carried out using a two-way analysis of variance of the angular trans- form of the predator/prey ratio, with the site, year, ... clearly higher in HA and ST (the two sites with pines) than in GU and 2L, and all ratios tend to increase with years (two-way ANOVA using arc- sine-transformed ratios...

Ngày tải lên: 08/08/2014, 00:22

... 10.1051/forest:2003002 Original article Optimising the management of Scots pine (Pinus sylvestris L.) stands in Spain based on individual-tree models Marc Palahí a * and Timo Pukkala b a European Forest Institute, ... simulation-optimisation system, SPINE, for the management of Pinus sylvestris L. stands in Spain. The simulation sub-system is b...

Ngày tải lên: 08/08/2014, 01:21

... C. Hoff and S. Rambal fall and leaf quantity [33, 43]. Important then are the timing of rainfall and drought events, the quantity of rainfall, the storage capacity of the soil and quantity and ... relations between the LAI and both climatic and soil factors; (2) understand how the water and carbon balances behave as a function of water availabilit...

Ngày tải lên: 08/08/2014, 01:21

... to the spec- tral variance is denoted by TT. 2.3. Non-linear mixed model of power spectra Visual inspections of truncated power spectra suggested the following non-linear relationship between the ... with the relative ease of modeling the trends in a power spectrum within a well-known statistical framework is perhaps the best feature of the proposed...

Ngày tải lên: 08/08/2014, 01:22

... compared to wood biomass increment of beech trees of comparable diameter in an experimental stand (Hesse) in northeastern France [24]. Biomass increment and carbon balance of ash 579 layer to total ... 577 Ann. For. Sci. 61 (2004) 577588 â INRA, EDP Sciences, 2004 DOI: 10.1051/forest:2004053 Original article Biomass increment and carbon balance of...

Ngày tải lên: 08/08/2014, 01:22

... 81 Ann. For. Sci. 61 (2004) 8186 â INRA, EDP Sciences, 2004 DOI: 10.1051/forest:2003087 Original article Relationships between hydraulic traits and habitat preference for six Acer species occurring ... adapted for high water transport. In contrast, plants need to invest less in means of acquiring water for their growth in dry habitats, and therefore reduced...

Ngày tải lên: 08/08/2014, 01:22