Báo cáo lâm nghiệp:"Succession from bog pine (Pinus uncinata var. rotundata) to Norway spruce (Picea abies) stands in relation to anthropic" docx

... international IUFRO experiment dealing with the ra - tionalization of young spruce stand tending (A 1977). One part of this series, Machov CZ 14 experi- Effect of stand segmentation on growth and ... values (mean and standard deviation) of stand volume (open triangles) and volume of mean stem (grey circles) of spruce stands in Machov experiment at the...

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

... vegetation and the rest of phytocoenosis contribut- ing to the formation of the soil environment or on the contrary, the absence or presence of herbs on the soil surface is primarily caused by the ... paupera, on the contrary, the contribution to the knowledge of this ecosystem is in the determina- tion of complicated soil environment, compare...

Ngày tải lên: 07/08/2014, 10:21

... Establishment and Silviculture, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic ABSTRACT: The paper summarizes results from the analyses of Norway spruce ... development and health condition of the root system in Norway spruce af- fected by the decline and yellowing of assimilatory apparatus in forest stand...

Ngày tải lên: 07/08/2014, 10:21

... stand composition) from each taxon used for the reforestation of the state of reclamation “A” and “B” Fig. 3. Fraxinus excelsior L. in the treatment with the application of CCB Fig. 4. Populus ... L. in the treatment with the application of CCB Fig. 5. Tilia cordata Mill. and Pinus nigra Arn. in the treatment with the application of CCB Fig. 6. Deform...

Ngày tải lên: 07/08/2014, 10:21

... 831 Ann. For. Sci. 62 (2005) 831836 â INRA, EDP Sciences, 2005 DOI: 10.1051/forest:2005089 Original article Aboveground biomass relationships for mixed ash (Fraxinus excelsior L. and Ulmus glabra Hudson) ... – About 5% of forest area of Friuli Venezia Giulia (Italy) is covered by mixed ash stands. In most cases, these are secondary forest establishe...

Ngày tải lên: 08/08/2014, 00:22

... 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

... 10.1051/forest:2003065 Original article Post-grazing Scots pine colonization of mid-elevation heathlands: population structure, impact on vegetation composition and diversity Thomas CURT a *, Bernard PRÉVOSTO a , ... heathlands and grasslands, pure pine stands, mixed (i.e. pine- beech) stands, and pure beech stands. Forest colonization and heathland vege...

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

... Original article A dendroclimatic analysis of Pinus densiflora from Mt. Chiri in southern Korea Won-Kyu Park* Ram R. Yadav* Department of Forest Products, College of Agriculture, ... (1801-1996) tree-ring chro- nology of Korean red pine was developed from the Chiri mountain range in south- ern Korea. Cross-dating of samples revealed t...

Ngày tải lên: 09/08/2014, 04:20

... temperature on gas exchange and mor- phological structure of shoot and root in 1 yr old Scots pine (Pinus sylvestris L.) seedlings J. Lippu P. Puttonen Department of Silviculture, ... University of Helsinki, Unioninkatu 40 B, 0 017 0 Helsinki, Finland Introduction Low soil temperature is one of the envi- ronmental factors affe...

Ngày tải lên: 09/08/2014, 04:20

... plant cuticular membranes. An overview. Studies on Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst.) needle cuticles S. Huttunen M. Turunen J. Reinikainen Department ... Results The young needles of Norway spruce (Picea abies L. Karst.) develop in early June under northern Finnish conditions, the Sc...

Ngày tải lên: 09/08/2014, 04:20

... nutrient status and vitality of Pinus sylvestris (L.) Vitality, nutrient supply of P. sylvestris, chemical constitution of the soil solution and NH 4 concentrations of the air ... preparation) sup- port this hypothesis. In addition, NH 4 /NH3 deposition may have toxic effects on the plant tissue (Ewert, 1978). Conclusion Acid deposition b...

Ngày tải lên: 09/08/2014, 04:20

... McGraw-Hill, London, pp. 383-417 7 Experimental study of pine ectomycorrhizae: ectomycorrhizal organization after girdling of the hypocotyl J. Lei J. Dexheimer Laboratoire de Biologie ... leading morphologically in the pine to the swelling of the stem above the ablation (Fig. 1 ) and in the fungal partner to the more or less complet...

Ngày tải lên: 09/08/2014, 04:20

... Succession of mycorrhizae: a matter of tree age or stand age? D. Blasius F. Oberwinkler Institut für Botanik, Spezielle BotaniklMykologie, Universität TObing 6 ,n Auf der Morgenstelle ... a considerable amount of pub- lished evidence to support the view that a succession of mycorrhizae occurs during the development of first-rotation forest plant...

Ngày tải lên: 09/08/2014, 04:20