Báo cáo lâm nghiệp: "Spatio-temporal pattern of bog pine (Pinus uncinata var. rotundata) at the interface with the Norway spruce (Picea abies) belt on the edge of a raised bog in the Jura Mountains, Switzerland" doc

... 17°58'46.72''E, 460 m a.s.l.; Flight activity of Anthribus nebulosus Forster, 1770 (Coleoptera: Anthribidae) and notes to its life history J. H 1,2 , M. T 3 1 Forestry and Game Management Research ... consump- tion, mating behavior, and shelter selection of Anthribus nebulosus Forster (Coleoptera: Anthribidae), an introduce...

Ngày tải lên: 07/08/2014, 03:22

... traps give information influenced by mi- gration of beetles. CONCLUSIONS I. typographus remained dominant species on the majority of sites having high intensity of tree infes- tation mainly along ... understanding of bark beetles spatial distribution. It may be used for practical forest protection only as preliminary information. No environmental factor controlling observed...

Ngày tải lên: 07/08/2014, 03:22

... selection of the best plus trees based on the performance of their half- sib progenies (R 1 ); response to selection of the best half-sib progenies (R 2 ); response to selection of the best clonally ... by the Czech University of Life Sciences in Prague, Faculty of Forestry and Environment, Project No. 41130/1312/413162. Initial evaluation of half-si...

Ngày tải lên: 07/08/2014, 03:22

... complex analyses of foliage nutrient status in a Scots pine stand in Lithuania. Site. e study site lies in the SW part (54°55'N, 23°43'E) of Lithuania in a common Scots pine stand for ... study aim was to interpret the foliage and soil analyses, and to find possible indications in the soil-plant relation in the stand. e analyses of the fol...

Ngày tải lên: 07/08/2014, 03:22

... e direct costs of the production of 1 m 3 of raw wood assortments were derived by means of the product of SH/m 3 with the wage schedule and coef- ficient of recalculation of labour costs ... Quality of wood in the stands of poplar clones. Journal of Forest Science, 54: 9–16. PETRÁŠ R., MECKO J., NOCIAR V., 2008b. Models of as- sortment yield tables for poplar...

Ngày tải lên: 07/08/2014, 03:22

... Ministry of Agriculture of the Czech Republic, Project No. QG 60063. Production potential of Douglas fir at mesotrophic sites of Křtiny Training Forest Enterprise P. K Faculty of Forestry ... evaluates the production po- tential of Douglas fir growing at mesotrophic sites in mature stands of Křtiny TFE. In total, 29 mixed stands were assessed...

Ngày tải lên: 07/08/2014, 03:22

... stability according to M (1994) and the level Floodplain forests of Litovelské Pomoraví and their management I. M Department of Biology, Faculty of Education, Palacký University in ... forests in the Litovelské Pomoraví PLA Fig. 5. Proportions of age class areas of floodplain forests in the Litovelské Pomoraví PLA % total area of floodplain f...

Ngày tải lên: 07/08/2014, 03:22

... preparation of soil/ site by ploughing, the concentrations of nitrogen and carbon slightly decrease as a result of mixing the soil of the upper horizon with the central part of the soil profile. – ... guidelines for the realization of the above-mentioned project. CONCLUSION – The natural regeneration of oak in floodplain forests of Spačva protect...

Ngày tải lên: 07/08/2014, 03:22

... possibilities of using Norway spruce (Picea abies [L.] Karst.) in forest regeneration in the air-polluted region of the northeastern Krušné hory Mts. P. K, O. M Faculty of Forestry and ... parts of the stands) than in the Krušné hory Mts. (with underplanting realized inside the stands) was also a reason for the relative...

Ngày tải lên: 07/08/2014, 03:22

... gradual. At the end of the growing season, 66% of phloem remained live or in the first stage of wilting. ere is available wood for the invasion of secondary cambiophages in the following growing ... colonized the breaks in particular. e upper and the lower side of the lying breaks-off differ in the intensity of attack and the degree of cover of th...

Ngày tải lên: 07/08/2014, 04:20

... 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

... the current results of the evaluation of the degree of the beech bark necrotic disease in selected localities in Southern Poland. Be- cause of the absence of analogical investigations in Poland, ... 2/7004/27. Current state of beech bark necrotic disease in Southern Poland A. C, I. M Institute of Forest Ecology of the Slovak Academy...

Ngày tải lên: 07/08/2014, 04:20

... Succession from bog pine to Norway spruce stands 351 Table I. Vegetation tabular of the phytocoenotic relevés and their synusial relevés in the bog pine stand of phytocoenosis No 1 and in the bog pine ... A., Schweingruber F.H., Gobat J M., Stand structure, invasion, and growth dynamics of bog pine (Pinus uncinata var. rotundata) in relation to pe...

Ngày tải lên: 08/08/2014, 01:21

... (Pinus uncinata var. rotundata) at the interface with the Norway spruce (Picea abies) belt on the edge of a raised bog in the Jura Mountains, Switzerland Franỗois FRELẫCHOUX a, b,c *, Alexandre ... Gobat J M., Stand structure, invasion and growth dynamics of bog pine (Pinus uncinata var. rotundata) in relation to peat cu...

Ngày tải lên: 08/08/2014, 01:21

... over the trees. Original article Modelling branchiness of Corsican pine with mixed-effect models (Pinus nigra Arnold ssp. laricio (Poiret) Maire) Céline Meredieu Francis Colin b Jean-Christophe ... Corsican pine. 2. MATERIALS AND METHODS 2.1. Structural development of Corsican pine This study concerns Corsican pine (Pinus nigra...

Ngày tải lên: 09/08/2014, 04:20