Báo cáo lâm nghiệp: "C and 15 N isotopic fractionation in trees, soils and fungi in a natural forest stand and a Norway spruce plantation" pps

... collected in the natural stand and in the Norway spruce plantation according to δ 13 Candδ 15 N, Breuil forest, (all sporophores, mean and stan- dard deviation for each group). (ASF) saprotrophic fungi ... were collected only in the natural stand, 24 were collected only in the Nor- way spruce stand and 13 were collected both in the natural stand and...

Ngày tải lên: 07/08/2014, 16:21

... of maritime pine 7 [2] Adams M .A. , Attiwill P.M., Nutrient cycling and nitrogen minera- lization in eucalypt forests of south-eastern Australia. I. Nutrient cycling and nitrogen turnover, Plant ... minutes in a microfuge and the supernatant used for protein analysis. Proteins were denatured by heating at 95–100 °C for 10 min in a water bath. Benzoic acid was used as an inter...

Ngày tải lên: 08/08/2014, 00:21

... Republic 3 Department of Forest Management in Mountain Regions, Forest Research Institute, Cracow, Poland ABSTRACT: Spruce is regarded as the only host plant of Ips duplicatus in Central Europe, whereas ... The incidental infestations on Scots pine were also observed recently in North- ern Poland (Kartuzy Forest District), in the newest outbreak area of I. duplicatus on No...

Ngày tải lên: 07/08/2014, 03:22

... by P. gonapodyides and P. cambivora isolates on one hand and from the most aggressive P. cinnamomi isolate on the other hand (Table 1). Infection experiment II. Confirmation of sub- strate specificity ... pathogen of some broad- leaved tree species belonging to genera Acer, Aes- culus, Castanea, Fagus, Fraxinus, Juglans, Prunus, Pyrus, Quercus, Salix, Ulmus etc. and many or- namentals...

Ngày tải lên: 07/08/2014, 10:21

... 395–436. [14] Tagliavini M., Millard P., Quartieri M., Marangoni B., Timing of nitrogen uptake affects winter storage and spring remobilisation of nitrogen in nectarine (Prunus persica var. nectarina) trees, ... fol- lowing weeks, however, partitioning of labelled N increased in the shoots and decreased in the roots in the elevated treatment, and at Week 12, no difference i...

Ngày tải lên: 08/08/2014, 00:21

... for at least one month significantly led to a two-fold increase of germination attaining approximately 60% and a better control of dormancy. Indeed, average germination was even higher when both ... contamination. This probably has to do with the fra- gility of the argan nut contained within the slightly cracked stone and weighing less 5 g in average [15] but rich in lipids and...

Ngày tải lên: 08/08/2014, 01:22

... costs and erosion. It may also a ect the soil compaction, so in planning forest operations and aligning skid trails the terrain slope may be an im- portant consideration for protecting soil ... these machines are likely to remain the most common type of skid- ding machine used. In mountainous and steep areas, the terrain slope is an important factor that a ects operational e...

Ngày tải lên: 07/08/2014, 03:22

... stability. MATERIAL AND METHODS e quality of rooted cuttings for planting was evaluated according to the standards of quality for plantable material, laid down by the Czech Technical Standard ... dynamics in the first and second generation rooted cuttings of beech, i.e. in the individuals originating from cuttings collected from trees of generative and vegetative origin (plan...

Ngày tải lên: 07/08/2014, 10:21

... qui a une teneur initiale en lignine et en résine plus importante. 3.2. Cinétique de la délignification Sur la base du résultat précédent, nous avons mené une étude de la cinétique de délignification ... détermination du point de transition entre la délignification principale (a) et la délignification finale (b). Ln : logarithme n périen, K : indice Kappa, R : rendement brut. Figure 3. Évolutio...

Ngày tải lên: 07/08/2014, 16:20

... fortinii significantly improved P uptake and growth of Pinus contorta seedlings and increased N uptake and total seedling biomass when N was added. In light of the fact that N amendments are a common ... Högberg N. , Dahlberg A. , Jonsson L., Nylund J E., Inter- and intraspecific variation in the ITS region of rDNA of ectomycor- rhizal fungi in Fennoscandia as detected...

Ngày tải lên: 07/08/2014, 16:20