Báo cáo lâm nghiệp: "Carbon and nitrogen winter storage and remobilisation during seasonal flush growth in two-year-old cork oak (Quercus suber L ) saplings" pptx
Báo cáo lâm nghiệp: "Carbon and nitrogen winter storage and remobilisation during seasonal flush growth in two-year-old cork oak (Quercus suber L.) saplings" pptx
... study, cork- oak saplings were subjected to a dual long-term labeling with 13 C and 15 N isotopes in winter, when no growth was expected. In this way, C and N stored in winter were labeled, allowing ... internal cycling of nitrogen in sycamore (Acer pseudoplatanus L. ) seedlings in relation to nitrogen supply, New Phytol. 117 (199 1) 587–596. [18] Millard P...
Ngày tải lên: 08/08/2014, 01:22
Báo cáo lâm nghiệp: "Micrometeorological assessment of sensitivity of canopy resistance to vapour pressure deficit in a Mediterranean oak forest * " potx
... datalog- ger (Campbell Sci, UK), which also controlled the valve switching. Sampling rate for all sensors was 1 s, and averages were recorded every 20 min. Overall resolution ... soil was still holding plentiful water. In addition, Jarvis et al (197 5), discussing data gathered on Pinus sylvestris at Thetford (a moderately humid oceanic climate...
Ngày tải lên: 08/08/2014, 18:21
Báo cáo lâm nghiệp: "Carbon and nitrogen allocation in trees" pot
... nitrogen storage. Nitrogen is stored during periods of inactive growth and then retranslocated to new developing leaves and shoots during flushing. In Nitrogen allocation in trees The ... accumulated during vegetative growth and then hydroly- zed and used in reproduction (Millard, 198 8). Specific storage proteins may also accumulate...
Ngày tải lên: 09/08/2014, 04:20
Báo cáo lâm nghiệp: "Carbon accumulation in Finland’s forests 1922–2004 – an estimate obtained by combination of forest inventory data with modelling of biomass, litter and soil" potx
... Variation in tree growth in Finland: results from the 6th National Forest Inventory, Folia For. 407 (197 9) 1–12. [67] Tomppo E., National forest inventory in Finland and its role in estimating the ... we calculated the annual estimates using growth indices and modelling of litter and soil. We found high annual variation in the carbon balance of both biomass and litte...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Carbon pool and substitution effects of an increased use of wood in buildings in Switzerland: first estimates" pdf
... service life of the building elements. If all the wood that is additionally used in the building stock will be used thermally in specialised wood incinerators, an additional energetic sub- stitution ... Wien, 1999 (in German). [3] BUWAL, Final consumption of wood in Switzerland 1996, Bunde- samt für Umwelt, Wald und Landschaft (BUWAL), Bern, 1996 (in German). [4] Dias A.C., Louro M.,...
Ngày tải lên: 08/08/2014, 00:22
Báo cáo lâm nghiệp: "Effects of elevated carbon dioxide on leaf gas exchange and growth of cork-oak (Quercus suber L) seedlings " pps
... grass- land annuals on soil water and blue oak (Quercus douglasii) seedlings. Ecology 74, 68-82 Griffin JR (197 1) Oak regeneration in the upper valley, California. Ecology ... (+138 %) and Pinus pinaster (+63 %) (Guehl et al, 199 4). In Q suber, root and shoot biomass, and total leaf area were increased, like in Populus gra...
Ngày tải lên: 08/08/2014, 18:21
Báo cáo lâm nghiệp: "A model of light interception and carbon balance for sweet chestnut coppice (Castanea sativa Mill.)" pdf
... calculated at randomly distributed points P by calculating the extinction coefficient from the leaf angle distri- bution (de Wit, 196 5), and the pathlength (Fig. 1) of light ... the ellipsoids (Norman and Welles, 198 3). Diffuse light was treated as direct light and integrated over the whole sky. Thus the model enabled calculation of...
Ngày tải lên: 09/08/2014, 04:20
Báo cáo lâm nghiệp: "Effect of nitrogen supply on growth and internal cycling within deciduous trees nitrogen" docx
... and that from internal cycling. Materials and Methods One year old ah ple trees (Malus domestica Borkh) were planted in sand in April 1987 and watered with nutrient solution ... 2QJ, Scotland Introduction Deciduous trees cycle nitrogen (N) inter- nally by remobilising N from senescing leaves into woody tissues, from where it is available for...
Ngày tải lên: 09/08/2014, 04:20
Báo cáo lâm nghiệp: "Carbon and phosphorus relations in and non-mycorrhizal pine seedlings" pps
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Ngày tải lên: 09/08/2014, 04:20
Báo cáo lâm nghiệp: "Occurrence of Ips duplicatus (Coleoptera: Curculionidae, Scolytinae) on pines (Pinus sp.) in the Czech Republic and southern Poland – Short Communication" pdf
... (Regel .) Kom. (in orig. Picea excelsa var. uralensis Tepl .) but also pines Pinus sylvestris L. , Pinus sibirica (Du Tour .) Rupr. (in orig. Pinus cembra L. ). K and S (194 8), ... consequently infested by I. duplicatus during summer (July–September 200 7); a similar pattern could be applied to the findings in Poland, next to the outbreak ar...
Ngày tải lên: 07/08/2014, 03:22