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Báo cáo lâm nghiệp:"Inter-annual mobility of nitrogen between beech rings: a labelling experiment" pot

Báo cáo lâm nghiệp: " Flight activity of Anthribus nebulosus Forster, 1770 (Coleoptera: Anthribidae) and notes to its life history" potx

Báo cáo lâm nghiệp: " Flight activity of Anthribus nebulosus Forster, 1770 (Coleoptera: Anthribidae) and notes to its life history" potx

... 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

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Báo cáo lâm nghiệp: "The results of manipulated experiments with inoculation of Ips typographus (L., 1758) to spruce trees under various levels" potx

Báo cáo lâm nghiệp: "The results of manipulated experiments with inoculation of Ips typographus (L., 1758) to spruce trees under various levels" potx

... inoculation of Ips typographus (L., 1758) to spruce trees under various levels of water stress M. T, O. N Faculty of Forestry and Wood Sciences, Czech University of Life Sciences ... Republic ABSTRACT: Manipulated experiments with males of Ips typographus (L., 1758) were conducted in spruce stands in north-western Slovakia. Some...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "The influence of irradiation on the behaviour and reproduction success of eight toothed bark beetle Ips typographus (Coleoptera: Scolytidae)" doc

Báo cáo lâm nghiệp: "The influence of irradiation on the behaviour and reproduction success of eight toothed bark beetle Ips typographus (Coleoptera: Scolytidae)" doc

... of irradiation on the behaviour and reproduction success of eight toothed bark beetle Ips typographus (Coleoptera: Scolytidae) M. T 1 , J. V 2 1 Faculty of Forestry and Wood Sciences, ... Slovakia ABSTRACT: Irradiation experiments on Ips typographus (L., 1758) with doses of 15 and 30 Gy (cobalt 60) were conducted in 2006. e eﬀect...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "Spatial distribution of four spruce bark beetles in north-western Slovakia" pps

Báo cáo lâm nghiệp: "Spatial distribution of four spruce bark beetles in north-western Slovakia" pps

... 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

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Báo cáo lâm nghiệp: "Initial evaluation of half-sib progenies of Norway spruce using the best line" potx

Báo cáo lâm nghiệp: "Initial evaluation of half-sib progenies of Norway spruce using the best line" potx

... 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

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Báo cáo lâm nghiệp: "The use of silica sand in micropropagation of woods" pot

Báo cáo lâm nghiệp: "The use of silica sand in micropropagation of woods" pot

... was used in part as liquid with sand (25 cm 3 sand + 20 ml solution), in part reinforced by heating 6g of agar in a 1 l medium. Cultures were incubated for 6 weeks with a daily lighting period ... substances. White silica sand marked PR 21 from the sandpit Provodín near Česká Lípa (http://www.pisky.cz) was used in laboratories of the North-Bohemian Museum in Libere...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "Earthworms (Lumbricidae) of an air-polluted area aﬀected by ameliorative liming" pdf

Báo cáo lâm nghiệp: "Earthworms (Lumbricidae) of an air-polluted area aﬀected by ameliorative liming" pdf

... 210–218 JOURNAL OF FOREST SCIENCE, 57, 2011 (5): 210–218 Earthworms (Lumbricidae) of an air-polluted area aﬀ ected by ameliorative liming E. K, L. M Faculty of Forestry and Wood Technology, ... carbon and nitrogen, exchangeable soil sorption and degree of base saturation of the sorption complex and available nutrients P, Mg, Kand Ca) were determined for m...

Ngày tải lên : 07/08/2014, 10:21

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Báo cáo lâm nghiệp: "Eﬀects of resource availability on condensed tannins and nitrogen in two Quercus species diﬀering in leaf life span" doc

Báo cáo lâm nghiệp: "Eﬀects of resource availability on condensed tannins and nitrogen in two Quercus species diﬀering in leaf life span" doc

... Available online at: c  INRA, EDP Sciences, 2007 www.afs-journal.org DOI: 10.1051/forest:2007021 Original article Eﬀects of resource availability on condensed tannins and nitrogen in two Quercus species ... radiation), at two water regimes (500 and 800 mm) and with two nutrient availabilities (standard substrate and 7% increase in soil N). The concentratio...

Ngày tải lên : 07/08/2014, 16:21

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Báo cáo lâm nghiệp: "Genetic variation of wood density components in a radiata pine progeny test located in the south of Chile" pps

Báo cáo lâm nghiệp: "Genetic variation of wood density components in a radiata pine progeny test located in the south of Chile" pps

... control of this trait appears to reach a maximum early in the life of trees and therefore maximum gains from selection can be obtained in the first-formed wood. In a 23 year-old radiata pine progeny ... until ring 18, while ear- lywood density followed an oscillating pattern of variation. In their study of families of radiata pine established in sever...

Ngày tải lên : 08/08/2014, 00:21

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Báo cáo lâm nghiệp:"Inter-annual mobility of nitrogen between beech rings: a labelling experiment" pot

Báo cáo lâm nghiệp:"Inter-annual mobility of nitrogen between beech rings: a labelling experiment" pot

... rings of beech. 2. MATERIALS AND METHODS Three dominant beech trees (Fagus sylvatica L.), aged 16 years and between 4 and 5 meters high, were sampled on a calcareous soil in a large natural regeneration ... 10.1051/forest:2003043 Original article Inter-annual mobility of nitrogen between beech rings: a labelling experiment Sliman ELHANI a , Brígida FERNÁNDEZ LE...

Ngày tải lên : 08/08/2014, 01:21

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Báo cáo lâm nghiệp: "Interannual variation of soil respiration in a beech forest ecosystem over a six-year study" pps

Báo cáo lâm nghiệp: "Interannual variation of soil respiration in a beech forest ecosystem over a six-year study" pps

... growing, beech stand, and stand biomass increased by about 10% each year (unpublished data). An increase in soil respiration in a young slash pine plantation has been ascribed to an increase in ... RESULTS Soil respiration exhibited pronounced seasonal variations with minimal values in winter and high values in early summer Interannual variation of soil respirati...

Ngày tải lên : 08/08/2014, 01:22

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Báo cáo lâm nghiệp: "The effect of excess nitrogen and of insect defoliation on the frost hardiness of bark tissue of adult oaks" pot

Báo cáo lâm nghiệp: "The effect of excess nitrogen and of insect defoliation on the frost hardiness of bark tissue of adult oaks" pot

... majority of oak stands had shown high leaf nitrogen concentrations. Therefore, the effect of nitrogen status and of insect defoliation on the frost hardiness of the bark of adult ... better understanding of the underlying physiolog- ical mechanisms. The findings of adverse effects of ample N supply and of spring defoliat...

Ngày tải lên : 08/08/2014, 18:21

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Báo cáo lâm nghiệp: "The effect of nitrogen content on the of Scots pine needles and shoots photosynthesis" doc

Báo cáo lâm nghiệp: "The effect of nitrogen content on the of Scots pine needles and shoots photosynthesis" doc

... The effect of nitrogen content on the photosynthesis of Scots pine needles and shoots H. Smolander 1 P. Oker-Blom 2 The Finnish Forest Research Institute, Suonenjoki ... photosynthesis of conif- erous trees (Linder and Rook, 1984). The aim of this study was to analyze separate- ly the effect of nitrogen content on the photo...

Ngày tải lên : 09/08/2014, 04:20

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Báo cáo lâm nghiệp: "Biochemical aspects of inorganic nitrogen assimilation by woody plants" pdf

Báo cáo lâm nghiệp: "Biochemical aspects of inorganic nitrogen assimilation by woody plants" pdf

... Springer-Verlag, Berlin, pp. 137-141 Biochemical aspects of inorganic nitrogen assimilation by woody plants G.R. Stewart, J. Pearson J.L. Kershaw E.C.M. Clough Department of Biology (Darwin Building), ... U.K. Introduction For the majority of woody plants, the min- eralization of organic nitrogen in soil pro- vides their source of nitrogen fo...

Ngày tải lên : 09/08/2014, 04:20

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Báo cáo lâm nghiệp: "Autophagic response of higher plant cells to a prolonged period of sucrose deprivation" docx

Báo cáo lâm nghiệp: "Autophagic response of higher plant cells to a prolonged period of sucrose deprivation" docx

... whereas the increase in total cell fatty acids was attributable to the synthesis of new cyto- plasmic material, such as mitochondria. Of particular interest was the marked ... ratio was maintained at a high value and it was possible therefore that the total amount of NTP per unit vol- ume of cytoplasm might be maintained if the total cyto...

Ngày tải lên : 09/08/2014, 04:20

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