Báo cáo lâm nghiệp: "Influence of the fertilisation method in controlled ectomycorrhizal inoculation of two Mediterranean pines" ppt

... the individual additional examination of a large num- ber of branches which would have considerably enlarged the survey. The risk of fork emergence of 71.7% obtained in plot P1, in the case of ... originating from the same point. The forks observed in this study were those which emerged on the annual shoot of the principal axis of each plant in 1994. Acco...

Ngày tải lên: 07/08/2014, 16:20

... mycorrhization of pine seedlings 581 Table III. Effect of the inoculation with different ectomycorrhizal fungi and of the fertilisation method on growth of containerised Pinus pinea seedlings. For each fertilisation ... obtain- ing mycorrhizal seedlings of both pines. The highest ECM percentages were obtained in the fertilisation treatments, in- dependently of...

Ngày tải lên: 07/08/2014, 16:21

... sampled using the standard method of line trapping by means of snap traps (P 1975) and combinations of snap and fall traps laid in the shape of Y (Ř et al. 1998). Traps in lines were ... clematis as dominant species in the herb stratum. ere were two lines of traps led in a trees cropping mast oak forest, one line in a young oak stand, one in a sp...

Ngày tải lên: 07/08/2014, 03:22

... i.e. in the more northern regions. In the 3-year developmental cy- cle the first moulting takes place as soon as in the year of hatching and already in the advanced sec- ond stage the larvae winter. ... spe- cies then damaged was almost exclusively pine and is due to the fact that the proportion of pine in re- forestation in the region is ca 90%. e effect...

Ngày tải lên: 07/08/2014, 03:22

... than the sum of the values of their parts (H, K 2005). At the end of the 70s and at the begin- ning of the 80s of the 20 th century, the principle of plywood allowed the origin of OSB ... the loading of a sample that is suspended on two supports whereas the sin- gle loading interacts in the middle of sample (Figs. 4 and 5). During t...

Ngày tải lên: 07/08/2014, 04:20

... important input into the mountainous catchments of the Czech Republic. In: Proceedings of the International Confe- rence on Interdisciplinary Approaches in Small Catchment Hydrology: Monitoring and ... that the con- tribution of condensed fog water to the amount of bulk precipitation was about 9% in a catchment in the Šumava Mts. in the course of 1994–2000....

Ngày tải lên: 07/08/2014, 10:21

... e frequency of the sanding paper replacement is Table 1. e initial and final point of abrasion in samples without glass fibres Sample Initial point of abrasion (rpm) Final point of abrasion ... recorded again. e initial point of abrasion occurs when: – the first disturbance of the printed picture is vis - ible in the printed decoration; – in single-coloured deco...

Ngày tải lên: 07/08/2014, 10:21

... just as in the case of phosphorus, there is a potential to increase it by weathering or by changes in chemical valence in the case of pH change. e nutrition of the spruce stands in the investi- gated ... within the area of interest. e nutrient content in the soil was determined in the upper humus layer (FH) and in the mineral soil (B) to a depth of...

Ngày tải lên: 07/08/2014, 10:21

... showed the pres- ence of two large resin ducts at both sites. The finding of a single resin duct in some needles was of exceptional note. e cross-section area of the needle as well as the area of ... altitudes. Interesting is a significant increase of MLI in the last decade, particularly in P. pumila growing at the high site. It could be caused by an increas...

Ngày tải lên: 07/08/2014, 10:21

... (BAI) instead of the ring width. The basal area is defined as the area of the cross-section of a tree stem near the base, generally measured at breast height. The BAI is then defined as the increase ... timber. In order to secure a sustainable source of firewood, the structure of the remaining forests was often altered. Especially coppice of European oak became...

Ngày tải lên: 08/08/2014, 00:22