Báo cáo lâm nghiệp: "A pheasantry as the habitat of small terrestrial mammals (Rodentia, Insectivora) in southern Moravia (Czech Republic)" doc

... study of the synusiae of small terrestrial mammals of pheasantries in southern Moravia is therefore aimed at monitoring the effect of specific properties of these habitats (high diversity of biotopes, ... Moreover, in the region of southern Moravia, pheasantries represent isolated areas of woody vegetation in the middle of intensive- ly managed land...

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 ... F 2 40% of maximal loading, a 2 – a 1 – increase in the deflection of the sample at the point of load force (mm), adequate to loading increment (...

Ngày tải lên: 07/08/2014, 04:20

... 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 (rpm) Mean ... affecting abrasion. If the ply is not prepared well, the connection of a veneer with a foil is imper- fect after gluing the foil. It results in a decrease of the i...

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 be...

Ngày tải lên: 08/08/2014, 00:22

... total number of the entire period of swarming; in this time interval intensive egg laying into the soil could be assumed. Basing on records of daily temperatures meas- ured using the automatic ... explored the ecological conditions, which in uence the female Melolontha hippocastani F. in their selection of the locality for laying eggs. In the region of mass o...

Ngày tải lên: 07/08/2014, 03:22

... the stand (in m), c is the individual girth at 1.3 m (in cm), H50 is the site index of the stand (in m), and Age is the age of the stand (in years). This model was built from data collected in 99 ... address the multi- faceted nature of management questions. Considering the in- creasing complexity of new challenges in forestry they are very useful in a wide...

Ngày tải lên: 07/08/2014, 16:21

... relationship was found between CDI5 and LM indices in the plantation, as a result of thinning during the last 10 years in this stand. In contrast, competition in uenced Scots pine stem growth in other ... minimum. The measurement of these variables was restricted to Scots pine. Sample size for these variables was inferred assuming a sampling error of less than 9% as a...

Ngày tải lên: 07/08/2014, 16:21

... Because R root as derived on the basis of equation 6 includes the resistance of the soil-to-root pathway, it is possible that the measured R root was due to the increase of R soil . In turn, R soil ... recovery of the hydraulic efficiency of the shoot i.e. xylem refilling and stomatal re-opening, is likely to require less metabolic investment by the plant than...

Ngày tải lên: 08/08/2014, 01:21

... to point estimation, hypothesis testing, and classi- fication of objects based on their reflectance spectra is needed. In addition to minimizing problems of data mining and colin- earity, the ... to the variance of a spectra. The choice of r–1 degrees of freedom in the numerator of the F-ratio test instead of 2 was adopted to keep the experiment-wide error rate a...

Ngày tải lên: 08/08/2014, 01:22

... on the young plants. This interaction was demonstrated in the laboratory by measuring the respiration of excised spruce roots. Using oxygen consumption as an indi- cator of ... (Hansatech Ltd.) This was used to follow the kinetics of oxygen consumption by excised roots in a liquid The next stage in these studies is the investigation...

Ngày tải lên: 09/08/2014, 04:20