Báo cáo lâm nghiệp: "Analysis of the aerial application of fertilizer and dolomitic limestone" docx

... stands de- struction arose after 1982, and in the first half of the 1980s the health conditions of stands gradually wors- ened. In the period after 1988 health improvement and decline of the ... (about 1 m) from the stem of five selected trees. e cylinder of the soil probe used for this purpose had the inner diameter of 6 cm and the height (depth of sp...

Ngày tải lên: 07/08/2014, 03:22

... (54% of trees, 40% of basal area at the age of 16 years) represented a loss of ca 8.7 thousand kg/ha of total biomass, which contained 53 kg of N, 5 kg of P, 22 kg of K, 26 kg of Ca and 4 kg of ... deficiency of Ca and Mg be- cause of their low content in forest soil. On the other hand, thinning supported the faster growth of trees left after thinning an...

Ngày tải lên: 07/08/2014, 10:21

... only in Sicily and particularly in the south-eastern part of the island, close to the Etna region. Haplotype 6 characterises the south-western part of Sicily, including the island of Pantelleria. ... either to the presence of the same haplotype in the two different ref- ugia, or to the migration that took place through the Adriatic bridge during glacial period [...

Ngày tải lên: 08/08/2014, 00:21

... variability of the applied amount of fertilizers (meeting the required amount in the particular parts of Habovka area) 2001). On the other hand, the complex analyses of aerial spraying and quality ... needles before the application of fertilizer or dolomitic lime- stone, and to evaluate the total amount of substance (whether the amount of substance...

Ngày tải lên: 07/08/2014, 10:21

... rather negative trend of development due to the development of timber prices on the one hand and due to increasing inputs on the other hand, last but not least also due to the projections of ... going to be the matter of objective impacts and what would be the result of “management” (including supranational impacts) is however a merit of the question and a su...

Ngày tải lên: 07/08/2014, 03:22

... tables of tree species (P et al. 1996) that give the proportion of quality and diameter classes of logs in stands with regard to their age and site index. According to the external and ... 2003 SP 26 028 OC 04 Modification of Utility Properties of Wood Materials and Extension their Using. Analysis of the production potential of raw wood in the forests o...

Ngày tải lên: 07/08/2014, 03:22

... of differences in the snow water equivalent in the spruce and beech stands in the period of snow melting (10. 4. to 28. 4. 2006). Paired t-test at the level of significance 0.05 Stand Mean Standard ... stands, roughly the same amount of snow melted away. In the spruce stand, the rate of snowmelt was slightly higher in this period. From the aspect of hydrologic...

Ngày tải lên: 07/08/2014, 04:20

... component of the coordinates (MSE XY) was 4.0 m for measurements without the application of the post-process corrections (the minimum 0.2 m, maximum 15.5 m and standard deviation 2.8 m) and the ... to August in 2007 and 2008 in a forest stand on the outskirts of Brno. e first experimental area (area A) was located west of Brno, in the vicinity of the B...

Ngày tải lên: 07/08/2014, 10:21

... analysis of variance (MANOVA) was applied. CLU and MANOVA were used to evaluate the close- ness of the nutrient status of the spruce stands and to assess the closeness of chemical properties of the ... Differences in the properties of the particular sampling points and the fact that the influence of soil heterogeneity on the specificity of forest st...

Ngày tải lên: 07/08/2014, 03:22

... forests on the area of 4,808.5 ha, that is about 0.2% of forest land of the Czech Republic. Forest stands of the first four age classes prevail (A 2008). Further, a favour- able impact of this ... research was focused on the study of natural regeneration of Douglas fir under the parent stand shelter. e parent stand 441D10 is one of the oldest and most...

Ngày tải lên: 07/08/2014, 03:22