Báo cáo lâm nghiệp: "Verification of the food supply to game under conditions of the floodplain forest ecosystem" docx

... standardized stocks of game, which sets the standardized stock of the particular species of hoofed game not to be higher than 1 individual of hoofed game per 2 ha of the game preserve area. With the ... and 0.83% is of low carrying capacity. Numerical stock of game At the end of the last century, there were high stocks of game in the Soutok...

Ngày tải lên: 07/08/2014, 10:21

... height levels: at the base, at 5% of total height and subsequently at intervals of 10% up to 65% and at 90% of total tree height, that corresponded to a diameter of approximately 7 cm and the limit of the ... 88% of the total vari- ation while between-tree variation accounted for 5% to 9% of the total variation. The radial width of sapwood (Fig. 5) remained r...

Ngày tải lên: 07/08/2014, 16:21

... important in the long-term perspective. From the point of view of nutrient balance and the sustainability of forest management it would be of special interest to make further studies of species ... than in other species (with the exception of lime). The study of Canadian hardwoods referred to above [13] showed that while the Ca concentration in the heartwood...

Ngày tải lên: 08/08/2014, 01:22

... the sandy subsoil of both stands. In the damaged stand, this led to a con- siderable variation in the exploitable water stock. In the Hakel Forest, the subsoil of the ... irre- spective of the degree of damage of the stand, for comparisons of PWP, AWP and RWC between the vitality classes of the trees. PWP and AWP clearly fo...

Ngày tải lên: 08/08/2014, 18:21

... dead wood was collected in the field during the inventory of the forests of the nature reserve Babia hora. The data were used for the calculation of CWD timber volume. In the next step, CWD timber ... If the average basic wood density of coarse woody debris is used for the conversion of deadwood volume to carbon stock, the results show that carbon stock is u...

Ngày tải lên: 07/08/2014, 10:21

... process of C mineralization is complex and might be co-regulated by other factors such as SOC and total N content of soils (G, G 2002). At the end of the incubation experiment, the quan- tities ... investigated the relationship between soil moisture and mineralization of C and N in soils with different vegetation types on the northern slope of the Natural Res...

Ngày tải lên: 07/08/2014, 10:21

... the factor of age, the fi nal numbers of cells of par- ticular tissues (EP, AP, LP) did not diff er consider- ably, however, there were diff erences of weeks in the timing of the formation of the ... cells. To conclude, the number of cells is not the only important aspect for the description of the phloem cell formation.  e timing of their formation, it...

Ngày tải lên: 07/08/2014, 10:21

... introduced to the United States [7, 8]. Tomicus piniperda is one of the most destructive pests of pine forests in Europe, where it is considered to be a secondary col- onizer of pine tree stems. Tomicus ... states. Ophiostomatoid fungi, including the genera Ceratocystis, Ophiostoma, Cera- tocystiopsis and their anamorphs, are the most important as- sociates of scolytids [2...

Ngày tải lên: 07/08/2014, 16:20

... physiological traits in response to drought. However it was not possible to relate these differ- ences to the dryness of the seed origin. These results sup- port the expectation suggested in a previous ... plants received a propor- tion of the water used by C plants of their respective provenance: at the beginning of the drought period, S plants received 50% of cont...

Ngày tải lên: 07/08/2014, 16:20

... facing side of the boards. The needle followed the grain and left a track in the wood. The angle of this track relative to the longitudinal direction of the boards was measured by a protractor in ... on the sample from tree n in family i in block j. μ is the total mean, α i is the fixed effect of family i, γ j is the random effect of the blocks, βX ijn is the...

Ngày tải lên: 07/08/2014, 16:21