Báo cáo lâm nghiệp: "Field eﬀect of P fertilization on N2 ﬁxation rate of Ulex europaeus" doc

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 planting stock and thus the changes in the ... from the regression analysis.Our interpretation of the data is that the eﬃciency of root system in terms of plant growth remains stable at least in that ﬁrst growing period of plant in the...

Báo cáo lâm nghiệp: "Short Communication Differences in the structure, species composition and diversity of primary and harvested forests on Changbai Mountain, Northeast China" ppsx

... Program of China No. 201104070.Short Communication Diﬀerences in the structure, species composition and diversity of primary and harvested forests on Changbai Mountain, Northeast ChinaDONGKAI ... species would not become dominant in the forest. e results of the multi-response per-mutation procedures (MRPP) further conﬁrmed the dissimilarity of species composition in the primary and ... identified. Of the overall number of tree species, 21 were present on both the primary and logged forest sites: 6 species of seedlings, 19 species of saplings, 15 species of poles and 9 species of...

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 thinningVariability of ... thinned stands (variant 4t) showed the higher variability of diameter growth response in comparison with those from control stands. DISCUSSION e response of Scots pine to climatic conditions ... eﬀ ect of thinning on variability of diameter growth response in pine stands? In the Czech Republic, where pine stands take up 18% of the forest area, a relatively wide collection of long-term...

Báo cáo lâm nghiệp: "old hardiness as a factor for assessing the potential distribution of the Japanese pine sawyer Monochamus alternatus (Coleoptera: Cerambycidae) in China" pdf

... distribution of the Japanese pine sawyer Monochamus alternatus (Coleoptera: Cerambycidae) in ChinaRui-Yan M a, b, Shu-Guang H a ,Wei-NaKb, Jiang-Hua S a ,LeK a * a State Key Laboratory of Integrated ... saltuarirs in northeastern China, M. galloprovinialis in the whole of Europe except for Scandinavia and Siberia, andM. scutellatus scutellatus in Alaska and Canada [6, 18, 28].These Monochamus species ... China(Received 31 May 2005; accepted 3 November 2005)Abstract – To assess cold tolerance as a factor for potential distribution of Monochamus alternatus, parameters of cold hardiness and acclimationresponses...

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 wheremultiple abiotic (including drought) and biotic (pathogens and insects) factors are involved [80, 85,106, ... PROCESSES AND MECHANISMSTheoretically, three main types of drought- disease interac-tion can be expected:– A direct eﬀect of drought on pathogens; – Indirect eﬀects of drought on pathogens ... factor in the biocenosis, by reducing the biomass and modulating thespecies composition.4.3. Possible role of root pathogens in declinesassociated with drought The role of root pathogens in drought...

Báo cáo lâm nghiệp: "Temperate forest trees and stands under severe drought: a review of ecophysiological responses, adaptation processes and long-term consequences" ppt

... forest trees and stands under severe drought: a review of ecophysiological responses, adaptation processes and long-term consequencesNathalie B´ a *,RolandHb, André G a ,ErwinD a aUMR ... dailydata) and of relative extractable soil water (REW) in: (a) beech stands (Soroe, Hesse and Hainich), (b) coniferous stands (Tharandt,Hyytiälä and Loobos), (c) Mediterranean stands (Puechabon, SanRoccore). ... shortage under similar rainfall than decid-uous stands (see Fig. 2). This is probably one of the most im-portant causes of variation in the net availability of rain wateramong forest stands. Transpiration...

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.orgDOI: 10.1051/forest:2007024Original articleThe eﬀects of thinning treatments on density, MOE, MOR and maximum crushing strength of ... low. In addition, theseed source of samples taken from two plantations areas was Thinning eﬀects on Pinus brutia wood properties 475[33] Larson P.R., Wood formation and the concept of wood quality,School ... density [20]. Zobel and van Buijtenen listeda number of publications on the relationship between thin-ning treatments and wood density, and based on the generalconsensus concluded that wood...

Báo cáo lâm nghiệp: "Field eﬀect of P fertilization on N2 ﬁxation rate of Ulex europaeus" doc

... / P fertilization / Pinus pinasterRésumé – Eﬀet in situ de la fertilisation en phosphore sur le taux de ﬁxation de l’azote atmosphérique d Ulex europaeus. Le taux de ﬁxation de l’azote atmosphérique ... method) to be properly ap-plied were not met in the fertilized site. It was thus impossibleto address the question of the ﬁeld P eﬀect on ﬁxation rate, even though other P eﬀects on ﬁxing shrubs ... (P8 0and P1 20) and Blagon (P1 60 and P2 40). Again, an individualresponse of gorse seems to be more likely to occur for high orvery high P doses.3.2. Ulex europaeus ﬁxation rate (Fig. 1; Appendix...

Báo cáo lâm nghiệp: "Nursery fertilisation aﬀects the frost-tolerance and plant quality of Eucalyptus globulus Labill. cuttings" ppsx

... 10.1051/forest:2007071Original articleNursery fertilisation aﬀects the frost-tolerance and plant quality of Eucalyptus globulus Labill. cuttingsManuel Fern´andeza*, Celia Marcosa,RaúlTapiasa, ... how nursery fertilisation aﬀects the ﬁeld performance of plants. Thisled us to study the eﬀect of three mineral nutrients (N, P and K) on both plant quality and frost tolerance. The experiment ... in the usual range used in the nurseries during the growing phase of the plants [28]. It was taken as a reference for calculating the dosage of nutrients applied in the other treatments. The...

Báo cáo lâm nghiệp: "Field trials of potential attractants and inhibitors for pine shoot beetles in the Yunnan province, China" pps

... pine and other pine species, and between the trunk xylem and twig xylem and phloem of Yunnan pines. Unlike Pinus sylvestris L., a major host of T. piniperda in Europe, the trunk xylem of P. yunnanensis ... attractiveness of the YB lures may be in the latespring-early summer, when the beetles are dispersing to the shoots. Our results and the profiles of monoterpene composi-tion of Yunnan pines [2, 7] ... twoblends of host volatiles for Tomicus n. sp. in the Yunnan prov-ince, and to determine if the inhibitors utilized for T. piniperdaalso deter the response of the new species. 2. MATERIALS AND METHODS2.1....

Báo cáo lâm nghiệp: "Characterizing fertility targets and multi-element interactions in nursery culture of Quercus rubra seedlings" pot

... 10.1051/forest:2006001Original articleCharacterizing fertility targets and multi-element interactions in nursery culture of Quercus rubra seedlingsK. Francis SALIFU, Douglass F. JACOBS*Hardwood Tree Improvement and ... seedling field performance. 3.3. Multi-element interactions Vector diagnosis is used to interpret and improve under-standing of multi-element interactions at the deficiency (Fig. 4A) and toxicity ... quan-tifying and characterizing fertility targets in seedling culture, and can help improve diagnostic precision in nutritional studies of forest tree seedlings.Acknowledgements: This research was financially...

Báo cáo lâm nghiệp: "Field performance of Pinus pinea and P. halepensis seedlings inoculated with Rhizopogon spp. and outplanted in formerly arable land Javier" ppsx

... 507514â INRA, EDP Sciences, 2004DOI: 10.1051/forest:2004045Original articleField performance of Pinus pinea and P. halepensis seedlings inoculated with Rhizopogon spp. and outplanted in formerly ... inoculation* Corresponding author: xavier.parlade@irta.es Field performance of Pinus inoculated with Rhizopogon 5113.3. Pinus halepensis seedling performance in Plot P-2 Pinus halepensis seedlings ... 3.2. Pinus pinea seedling performance in plot P-2 Pinus pinea seedlings inoculated with R. roseolus showeda high root colonization level (over 50%) before outplanting(Tab. III). Non-inoculated...

Báo cáo lâm nghiệp: "Physiological, morphological and growth responses to rhizosphere hypoxia by seedlings of North American bottomland oaks" potx

... and 800 μmol m-2 s-1. Stomatal conductance and Original articlePhysiological, morphological and growth responses to rhizosphere hypoxia by seedlings of North American ... stomatal and photosynthetic responses of three bottomland tree species. For Sci 32, 914-923Ponnamperuma FN (1984) Effects of flooding on soils.In: Flooding and Plant Growth ... Photosynthetic and growth responses of silver maple (Acer saccharinumL) seedlings to flooding. Am Midl Nat 112, 261-272Pezeshki SR (1991) Root responses of flood-tolerantand...

Báo cáo lâm nghiệp: "Biomass, litterfall and nutrient content in Castanea sativa coppice stands of southern Europe" ppt

... 99.6 Mg ha-1; San Original articleBiomass, litterfall and nutrient content in Castanea sativa coppice stands of southern EuropeS Leonardi1I Santa ReginaM Rapp4HA Gallego3M ... VII.This indicates again that there was muchhigher calcium content in the litterfall in theEtna Castanea sativa stands as comparedto the San Martin stand in Spain. For ... Mediterranean.Biomass of individual trees, abovegroundstand biomass, their yearly increments and nutrient contents were studied in coppices of Spain, Italy and France. Litterfall and nu-trient...

Báo cáo lâm nghiệp: "Field studies of leaf gas exchanges (Elaeis guineensis Jacq.)" pdf

... optimization of carbon diox-ide uptake with respect to water loss. Ausf. J.Plant Physiol. 7, 3i 5-327 Field studies of leaf gas exchanges in oil palm tree (Elaeis guineensis ... made on the8th or 9th leaf of 8 different palm trees(last leaf fully opened is numbered 1 ).Light was the only limiting factor. Relativeerror of measurements in low ... field:Bolle-Jones (1968) determined theamount of soluble sugars in 9 yr old leaf- lets and Corley (1983) observed theeffects of leaf senescence on photosyn-thesis using the...

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