Báo cáo lâm nghiệp: "Susceptibility of native French elm clones to Ophiostoma novo-ulmi" potx

... OF FOREST SCIENCE, 53, 2007 (Special Issue): 3–10 Composition of psocid taxocenoses (Insecta: Psocoptera) in Fageti -Piceeta s. lat. and Piceeta s. lat. forests in the Western Carpathian Mts. O. ... Fageti -Piceeta s. lat. and the 8 th – Piceeta s. lat. ese AVZ occur in the study area in the Moravskoslezské Beskydy Mts. in...

Ngày tải lên: 07/08/2014, 03:22

... broad natural range that includes most of Europe and extends into North Africa, Asia Minor, and western Siberia Study of natural hybridization between Alnus incana (L.) Moench. and Alnus glutinosa ... Republic ABSTRACT: Variation of metric and qualitative characteristics of A. incana (L.) Moench. and A. glutinosa (L.) Gaertn. has been st...

Ngày tải lên: 07/08/2014, 03:22

... m 3 /ha (according to Report on the Condition of Forests and Forestry in the Czech Republic, 2004). Timber felling In the whole post-war period, annual timber fell- ing in the forestry of Czech Republic ... some dynamic series of forest production and trends of forest economics in the Czech Republic V. K Faculty of Forestry and Woo...

Ngày tải lên: 07/08/2014, 03:22

... forestry mapping rationalization. Digital photogrammetry in forestry mapping Digital photogrammetry is a process of digital image interpretation in a computer without human assistance. Digital image ... the beginning of the 90’s, forestry mapping changed from the analogue making of the maps with thematic forestry themes into a system, the output of which is...

Ngày tải lên: 07/08/2014, 03:22

... (At). Determination of the percentage of PF resin hardening e aim of studying the character of PF resins in the field of UV spectrum was to determine the amount of the insoluble proportion of a heat-hardened ... tolerate Supported by the Ministry of Education, Youth and Sports of the Czech Republic, Project No. MSM 6215648902. Determination of the pressi...

Ngày tải lên: 07/08/2014, 03:22

... by the Scientific Grant Agency of the Ministry of Education of Slovakia and Slovak Academy of Sciences VEGA, Project No. 2/0045/08. Amounts of throughfall and lysimetric water in a sub-mountain ... 207–211 Water as a substantial component of the living environment is a limiting factor for plants, animals and humans themselves. e amount of (surface...

Ngày tải lên: 07/08/2014, 03:22

... Poland. Supported by the Ministry of Agriculture of the Czech Republic, Project No. 0002070201. Occurrence of Ips duplicatus (Coleoptera: Curculionidae, Scolytinae) on pines (Pinus sp.) in the ... in the eastern part of the Czech Republic and in southern Poland, where the population density of Ips duplicatus has been increase...

Ngày tải lên: 07/08/2014, 03:22

... only species showing economical importance, the ANFI sub- sumed maple species. A generally small amount of maple in the species composition had been expected and is plausible because of intolerance ... for mortality with increasing dbh for the other tree species, result- ing in large trees never dying. erefore the results of the long term simulations became unre...

Ngày tải lên: 07/08/2014, 03:22

... Supported by the Ministry of Agriculture of the Czech Republic, Research Project No. MZE 0002070203. Comparison of the impact of blue spruce and reed Calamagrostis villosa on forest soil chemical ... mitigate the acidification of soil solution and the leaching of basic cations of Ca and Mg from soil. is study aims to compare impact of...

Ngày tải lên: 07/08/2014, 03:22

... on high growing stock, wood production and especially the values of mensurational indices attract attention. At Analysis of herbicide effects on Douglas fir (Pseudotsuga menziesii [Mirb.] Franco) ... Effect of site preparation on survival and growth of Douglas fir (Pseudotsuga menziesii [Mirb.] Franco) seedlings. New Forests, 3: 89–98. G L. (1...

Ngày tải lên: 07/08/2014, 03:22

... 6215648902, and the Ministry of Agriculture of the Czech Republic, Project QG 60060. Response of the Norway spruce (Picea abies [L.] Karst.) root system to changing humidity and temperature conditions ... difference in the rooting depth of the whole root system (see Rooting depth of the whole root sys- tem). As the result of dis...

Ngày tải lên: 07/08/2014, 03:22

... and in the Bieszczady and Świętokrzyskie Mountains (J, P Processes of loss, recruitment, and increment in stands of a primeval character in selected areas of the Pieniny National ... 115–131. JAWORSKI A. , KOŁODZIEJ Z., 2002. Natural loss of trees, recruitment and increment in stands of primeval character in selecte...

Ngày tải lên: 07/08/2014, 03:22

... nutrient content of aboveground biomass of teak plantation in a tropical dry deciduous forest of Udaipur, Rajasthan, India. e nutrient contents in the total biomass of teak in the plantation ... involved. Plantation species of the genus Acacia, Pinus, Euca- Quantication of nutrient content in the aboveground biomass of...

Ngày tải lên: 07/08/2014, 03:22

... plantation. In the Nogent-nursery test, automatic watering resulted in better Figure 1. Origins of the native French elm clones tested for sus- ceptibility to Ophiostoma novo- ulmi. AL: Alsace, AQ: ... used to assess the proportion of symptoms (wilt and defoliation) affecting the crown of each tree. Classes were defined as: 1 = no symptom, 2 = 1 to 10% symptomatic, 3 =...

Ngày tải lên: 08/08/2014, 00:22

... photosynthesis induced by abscisic acid in leaves having different mesophyll anatomies. Plant Cell Physiol. 29, 385-394 Responses of photosynthesis and stomatal conductance to atmospheric humidity ... diffusional and mesophyll photosynthetic processes in response to increasing Aw: Pinus pinea seedlings, having a leaf diffusional struc- (Cow...

Ngày tải lên: 09/08/2014, 04:20