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Báo cáo lâm nghiệp: "The eﬀects of thinning treatments on density, MOE, MOR and maximum crushing strength of Pinus brutia Ten. wood" ppt

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: "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: "The root-plant ratio changes in the first growing periods of wild cherry (Prunus avium L.) plantations" pptx

Báo cáo lâm nghiệp: "The root-plant ratio changes in the first growing periods of wild cherry (Prunus avium L.) plantations" pptx

... that the fine root ratio is stable at least in the first growing period of new plantation and the best growing plants have about the same fine root ratio as the poorly growing ones. Even the regression ... explaining 92% of the relationship. An adequate proportion of fine roots (thinner than 2 mm) in the root system is another important parameter of p...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "The first reaction of soil mite fauna (Acari, Mesostigmata) caused by conversion of Norway spruce stand in the Szklarska Poręba For" potx

Báo cáo lâm nghiệp: "The first reaction of soil mite fauna (Acari, Mesostigmata) caused by conversion of Norway spruce stand in the Szklarska Poręba For" potx

... occurrence of beech we can observe that on the converted plots the domination of Uropo- dina mites was increased and domination rate of Parasitidae mites was decreased. Similar results of the reaction ... reaction of this group of mites to increasing amount of broadleaves in tree-stands were presented in “common-garden” forest experiment (S 2007). Th...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "The effect of point application of fertilizers on the soil environment of spread line windrows in the Krušné hory Mts" docx

Báo cáo lâm nghiệp: "The effect of point application of fertilizers on the soil environment of spread line windrows in the Krušné hory Mts" docx

... were observed mainly in regions exposed to the heavy deposition e eﬀect of point application of fertilizers on the soil environment of spread line windrows in the Krušné hory Mts. D. V 1 , ... scariﬁcation the top -soil horizons were moved into line windrows, which caused marked degradation of the soil environment. e present revita...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "The proposal of biotic hazard zones in selected spruce dominated regions in Slovakia" pptx

Báo cáo lâm nghiệp: "The proposal of biotic hazard zones in selected spruce dominated regions in Slovakia" pptx

... of biotic hazard zones in three spruce dominated regions in Slo- vakia; (3) Proposal of zone-speciﬁc forest protection mea- sures. Study regions ree regions with diﬀerent kind of spruce decline ... Descriptive statistics of data on accidental felling of spruce (m 3 of felled volume) used for the proposal of biotic hazard zones in three inves...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "The influence of selected factors on energy requirements for plain milling of beech wood" ppsx

Báo cáo lâm nghiệp: "The influence of selected factors on energy requirements for plain milling of beech wood" ppsx

... information on the given problems. Energy requirements were assessed on the basis of measurement and evaluation of electric input e inﬂuence of selected factors on energy requirements for plain ... of selected factors of energy requirements at plain milling of beech wood on cutting input as well as on basic technological parameters v c...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: " The response of weevil communities (Coleoptera: Curculionoidea) to the altitudinal zones of beech stands" ppt

Báo cáo lâm nghiệp: " The response of weevil communities (Coleoptera: Curculionoidea) to the altitudinal zones of beech stands" ppt

... System. e response of weevil communities (Coleoptera: Curculionoidea) to the altitudinal zones of beech stands J. B Faculty of Forestry and Wood Technology, Mendel University of Agriculture ... is impossible to deﬁne the outline of the occurrence of the found species. Many faunal researches suggest the possibility of the occurrence of...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "The role of Hylastes cunicularius Erichson (Coleoptera: Scolytidae) in transferring uropodine mites in a mountain spruce forest" pptx

Báo cáo lâm nghiệp: "The role of Hylastes cunicularius Erichson (Coleoptera: Scolytidae) in transferring uropodine mites in a mountain spruce forest" pptx

... importance of the passive transfer of uropodine mites assisted by H. cunicularius cannot be overlooked in mountain spruce forests in the Tatra Mountains and, possibly in other mountain areas in ... e role of Hylastes cunicularius Erichson (Coleoptera: Scolytidae) in transferring uropodine mites in a mountain spruce forest B. K,...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "The evolution of natural floodplain forests in South Moravia between 1973 and 2005" pptx

Báo cáo lâm nghiệp: "The evolution of natural floodplain forests in South Moravia between 1973 and 2005" pptx

... In 1949, the Supported by the Ministry of Education, Youth and Sports of the Czech Republic, Projects No. VaV-SM/6/153/05 and MSM 6293359101. e evolution of natural ﬂoodplain forests in South ... relevés. The increasing trend in the number of recorded species may, however, also mean the movement of some of the ecologi- cal factors. In the case of floodpl...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "The eﬀect of diﬀerent stand density on diameter growth response in Scots pine stands in relation to climate situations" potx

Báo cáo lâm nghiệp: "The eﬀect of diﬀerent stand density on diameter growth response in Scots pine stands in relation to climate situations" potx

... were included in the clusters together with trees from unthinned control plots 1c. Variability of growth response of pine stands to climate characteristic in relation to thinning Variability of ... thinned stands (variant 4t) showed the higher variability of diameter growth response in comparison with those from control stands. DISCUSSION  e respon...

Ngày tải lên : 07/08/2014, 10:21

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Báo cáo lâm nghiệp: "Interactive eﬀects of drought and pathogens in forest trees" docx

Báo cáo lâm nghiệp: "Interactive eﬀects of drought and pathogens in forest trees" docx

... approach has proved very interest- ing and useful in the case of complex decline syndromes where multiple abiotic (including drought) and biotic (pathogens and insects) factors are involved [80, 85,106, ... PROCESSES AND MECHANISMS Theoretically, three main types of drought- disease interac- tion can be expected: – A direct eﬀect of drought on pathogens; – Indirect eﬀe...

Ngày tải lên : 07/08/2014, 16:20

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Báo cáo lâm nghiệp: "The contribution of remote sensing to the assessment of drought eﬀects in forest ecosystems" ppsx

Báo cáo lâm nghiệp: "The contribution of remote sensing to the assessment of drought eﬀects in forest ecosystems" ppsx

... from the similarity of the detected changes with those caused by drought. This part gives an overview of the state of the art in the use of remote sensing for detecting and monitor- ing forest ... are: to brieﬂy review the existing sources of remote sensing data and their potential to detect drought damage; to review the remote sensing applica...

Ngày tải lên : 07/08/2014, 16:20

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Báo cáo lâm nghiệp: "The eﬀects of thinning treatments on density, MOE, MOR and maximum crushing strength of Pinus brutia Ten. wood" ppt

Báo cáo lâm nghiệp: "The eﬀects of thinning treatments on density, MOE, MOR and maximum crushing strength of Pinus brutia Ten. wood" ppt

... online at: c  INRA, EDP Sciences, 2007 www.afs-journal.org DOI: 10.1051/forest:2007024 Original article The eﬀects of thinning treatments on density, MOE, MOR and maximum crushing strength of ... low. In addition, the seed source of samples taken from two plantations areas was Thinning eﬀects on Pinus brutia wood properties 475 [33] Larson P.R., Wood fo...

Ngày tải lên : 07/08/2014, 16:21

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