Báo cáo lâm nghiệp: "Inventaires successifs en forêt : intérêt théorique et limites pratiques de l’échantillonnage partiellement renouvelé" potx
Báo cáo lâm nghiệp: "Inventaires successifs en forêt : intérêt théorique et limites pratiques de l’échantillonnage partiellement renouvelé" potx
... des résultats d’inventaire, ou d’études prospectives ; on rejoint alors la question (3) de l’introduction. Inventaires successifs en forêt : intérêt théorique et limites pratiques ... Cn, m et n tendent très rapidement vers (CF — CO)/Cm et 0 (respectivement) quand wk /z k tend vers 0. Un ordre de grandeur de 50 % pour le...
Ngày tải lên: 09/08/2014, 06:21
Báo cáo lâm nghiệp: " Egouttement F.en et intensité de la FRANÇOIS, jeunes pessières première éclaircie" pdf
... éclaircie, dont l’intensité dépasse sensiblement les normes généralement retenues dans le traitement de l’épicéa, favorise la croissance des arbres et des peuplements et cela, malgré ... (1977 et 1978), correspondant chacune à la phase de croissance secondaire des arbres. Le choix de cette période de mesure découle directement de l’objectif...
Ngày tải lên: 09/08/2014, 06:21
Báo cáo lâm nghiệp: "The results of manipulated experiments with inoculation of Ips typographus (L., 1758) to spruce trees under various levels" potx
... of Applied Entomology, 12 4: 1–5. ELLENBERG H., 1986. Vegetation Mitteleuropas mit den Alpen. Stuttgart, Verlag Eugen Ulmer: 110. FÜHRER E., 1990. Forest decline in Central Europe: Addi- tional ... Befallsdispo- sition von Fichtenbeständen für Borkenkäfer bei Vorliegen neuartiger Waldschäden im üringer Wald (Coleoptera: Scolytidae). Entomologica Generalis, 2 1: 17–25. REEVE J.D., A...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "An economic aspect of conversion of Scots pine (Pinus sylvestris L.) stands in the Polish Lowland" docx
... W 2 1 Department of Forest Management, Poznan University of Life Sciences, Poznań, Poland 2 Department of Game Management and Forest Protection, Poznan University of Life Sciences, Poznań, ... intervals (m 3 /ha) J. FOR. SCI., 55, 2009 (6 ): 293–298 293 JOURNAL OF FOREST SCIENCE, 55, 2009 (6 ): 293–298 In Europe, in the past, when forest management tried to meet the demands o...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "Germination of acorns and development of oak seedlings (Quercus robur L.) following flooding" pot
... Behandlung der Auenwälder am Oberrhein unter beson- derer Berücksichtigung der Stieleiche (Quercus robur L.). Schriften aus der Forstlichen Fakultät der Universität Göttingen und der Niedersächsischen ... GARREAU B., 1986. Comportement expérimental de semis de chêne pedonculé, chêne sessile et hêtre en présence d’une nappe d’eau dans le sol. Annales des sciences forestières, 4 3...
Ngày tải lên: 07/08/2014, 03:22
![Báo cáo lâm nghiệp: "Merocoenoses of cambioxylophagous insect fauna of Norway spruce (Picea abies [L.] Karst.) with focus on bark beetles (Coleoptera: Scolytidae) and types of tree damage in different gradation conditions" ppsx](https://media.store123doc.com/images/document/2014_08/07/medium_eml1407381692.jpg)
Báo cáo lâm nghiệp: "Merocoenoses of cambioxylophagous insect fauna of Norway spruce (Picea abies [L.] Karst.) with focus on bark beetles (Coleoptera: Scolytidae) and types of tree damage in different gradation conditions" ppsx
... Ecomed: 292–314. S F. (1955 ): Pathogenese der Borkenkäfer- Epidemie 1946–1950 in Nordwest-deutschland. Schriften- reihe der Forstlichen Fakultät der Universitet Göttingen, 13/1 4: 1–135. W ... B T., S H. (1998 ): Die Be- deutung der Sturmwurffl ächen als Borkenkäferquellen für umliegende Wirtschaftswälder. In: F A. (ed. ): e Developme...
Ngày tải lên: 07/08/2014, 10:21
![Báo cáo lâm nghiệp: "Soil environment and nutrient status of Norway spruce (Picea abies [L.] Karst.) underplantings in conditions of the 8th FAZ in the Hrubý Jeseník Mts" potx](https://media.store123doc.com/images/document/2014_08/07/medium_vax1407381694.jpg)
Báo cáo lâm nghiệp: "Soil environment and nutrient status of Norway spruce (Picea abies [L.] Karst.) underplantings in conditions of the 8th FAZ in the Hrubý Jeseník Mts" potx
... Republic e-mail: xpechace@node.mendelu.cz J. FOR. SCI., 57, 2011 (4 ): 141–152 149 derplantings increases with a decreasing content of these nutrients in needles. An opposite correlation was determined ... calculated between the foliar N and P content and the degree of damage to evaluated underplantings caused by nutrient de ciency (Tables 5 and 6). Damage to un- Fig 2. e correlati...
Ngày tải lên: 07/08/2014, 10:21
![Báo cáo lâm nghiệp: "Polyamines during somatic embryo development in Norway spruce (Picea abies [L.])" potx](https://media.store123doc.com/images/document/2014_08/07/medium_xmd1407381712.jpg)
Báo cáo lâm nghiệp: "Polyamines during somatic embryo development in Norway spruce (Picea abies [L.])" potx
... a detailed study of developmental processes accom- panying differentiation of embryo and its conversion during polyembryogenesis. Regeneration of complete plants by means of so- matic embryogenesis ... Experimental Botany, Academy of Sciences of the Czech Republic, Prague, Czech Republic ABSTRACT: Contents of free polyamines (putrescine, spermidine and spermine) were determined in different...
Ngày tải lên: 07/08/2014, 10:21
Báo cáo lâm nghiệp: " Possibilities of using rooted cuttings of European beech (Fagus sylvatica L.) for stabilisation of forest ecosystems" pptx
... 2002. České Budějovice, INPROF: 11–17. KLEINSCHMIT J., 1989. Perspektiven und Grenzen der vegetativen Vermehrung forstlichen Pflanzenmaterials. Forstarchiv, 6 0: 139–145. MAUER O., PALÁTOVÁ E., ... Society, Vol. 5 3: 575–576. CORNU C. et al., 1977. Recherche des meilleures conditions d’enrancinement des boutures herbacées de chêne rouvre (Quercus petraea /M./ Liebl.) et hêtre...
Ngày tải lên: 07/08/2014, 10:21
![Báo cáo lâm nghiệp: "Architecture of root branches of Norway spruce trees (Picea abies [L.] Karst.) growing in gley soil" pptx](https://media.store123doc.com/images/document/2014_08/07/medium_dos1407381720.jpg)
Báo cáo lâm nghiệp: "Architecture of root branches of Norway spruce trees (Picea abies [L.] Karst.) growing in gley soil" pptx
... forest types: peaty fir-spruce (50%) that belongs to the vegetation unit Abieto-Piceetum, birch-alder on a fluvio-glacial substrate (40%) that belongs to the vegetation unit Betuleto-Alnetum, and ... biomass in- ventory. e methods for the belowground biomass inventory have been comprehensively described by K et al. (1968), K (1972), B (1979), and recently by S...
Ngày tải lên: 07/08/2014, 10:22