Báo cáo lâm nghiệp: "Response of birch (Betula pendula Roth) phytophages to liming" pdf

... in Chomutov and Dieter Bussmann Co. in Ústí nad Labem. Response of birch (Betula pendula Roth) phytophages to liming E. K Faculty of Forestry and Wood Technology, Mendel University of Agriculture ... as well as the vitality of trees are changed. Changes in the chem- istry of assimilatory organs of birch (Betula pendula Roth) after the application of d...

Ngày tải lên: 07/08/2014, 10:22

... Sweden, bud induction occurs in the begin- ning of July [18] with a rapid period of development for a period of up to six weeks [8]. The length of the leading shoot the second year after planting ... e ijkl where m is the general mean, A i is effects of the blocks, B j is effects of irrigation, C k is effects of herbicide treatment and D l is effects of fertilization. Th...

Ngày tải lên: 08/08/2014, 01:21

... 100 ecto M-5-P 43 56 96 ecto M-7-Z 100 100 100 ecto M-7-P 62 64 149 ecto M-12-Z 100 110 100 ecto M-12-P 40 112 121 ecto M-23-Z 100 100 100 ecto M-23-P 58 125 134 ecto M-25-Z 100 100 100 ecto M-25-P ... ecto R-3-Z 100 100 100 ecto R-3-P 49 142 140 ecto R-5-Z 100 100 100 ecto R-5-P 46 126 130 ecto R-8-Z 100 100 100 ecto R-8-P 40 163 174 ecto *relative expression, in all stand situations 100% o...

Ngày tải lên: 07/08/2014, 03:22

... tree leaf area to the stand-level and to relate stand attributes to LAI and foliage litterfall. A total of 26 young plantations (10–30 years of age) and 10 older plantations (30–60 years of age) were ... predicting litter input to soil and the size of soil carbon pools [31]. Currently, over 72 000 ha of Douglas-fir plantations in the Coast Range of Oregon, USA, are showing...

Ngày tải lên: 07/08/2014, 16:20

... 728-733 Response of shoot growth and gas exchange of Picea abies clones to rain acidity and the addition of ions P. Van Elsacker I. Impens Department of Biology, University of Antwerp ... by several factors, among them, air pollution is thought to be very important. Interfer- ence of pollutants with the ecophysiologi- cal performance of fo...

Ngày tải lên: 09/08/2014, 04:20

... 2005). e aim of presented paper is to explore possibili- ties of using DEM for mapping vegetation tiers. DEM is considered to be a useful tool for transferring the knowledge of vegetation ... around the towns of Valašské Klobouky and Bru- mov-Bylnice, and between the towns of Uherský Brod, Luhačovice, and Bojkovice. Both sites cover an area of approximately 10,000 ha in...

Ngày tải lên: 07/08/2014, 10:21

... retarding action of AS. Pyrolysis of pine needles in presence of retardants 555 The presence of phosphoric acid and phosphorous pentoxide would cause an earlier dehydration of cellulose through ... of some domi- nant Mediterranean vegetation species, Int. J. Wildland Fire 10 (2001) 23–27. [2] Faroq A.A., Price D., Milnes G.J., Use of gas chromatographic ana- lysis of volatile...

Ngày tải lên: 08/08/2014, 01:22

... growth retardation of Carpathian birch is still to be done and should be a topic of further research. Despite some growth retardation of Carpathian birch, the application of basic amendments ... 2001 . Some experience of European birch (Be- tula pendula Roth) and Carpathian birch (Betula carpatica W. et K.) planted on the ridge part of the Jizerské hory Mts. J...

Ngày tải lên: 07/08/2014, 10:22

... August 2004) Abstract – The reduction of wood response to variations of ambient humidity, described as kind of ageing, has been studied from both points of view of moisture uptake and dimensional ... thereby giving to the cellulose, and therefore by extension to the wood, a hygroscopic nature. Due to its hygroscopic nature, a consequence of the presence of OH groups in t...

Ngày tải lên: 08/08/2014, 00:21

... part of the species-related survivalist strategy of growth for sugar maple, which allowed seedlings to tolerate the high O 3 levels of this experiment. However, under high O 3 , growth of neoformed ... de- fensive capacity of these neoformed flush seems to collapse at the end of the season. As previously explained, this may lead to a decreased production of reducing power a...

Ngày tải lên: 08/08/2014, 00:22