Báo cáo lâm nghiệp: "Unexpected disproportion observed in species composition between oak mixed stands and their progeny populations" pdf
Báo cáo lâm nghiệp: "Unexpected disproportion observed in species composition between oak mixed stands and their progeny populations" pdf
... 10.1051/forest:2007018 Original article Unexpected disproportion observed in species composition between oak mixed stands and their progeny populations Monika D, Andrzej L * Institute of Dendrology, ... established from seeds gained from oak selected seed stands of mixed composition. We were inter- ested in changes in species composition o...
Ngày tải lên: 07/08/2014, 16:21
Báo cáo lâm nghiệp: "Effect of tree species substitution on organic matter biodegradability and mineral nutrient availability in a temperate topsoil" pptx
... soil quality of sloping oak stands in a German low mountain range, Ann. For. Sci. 62 (2005) 23–29. [31] Paavolainen L., Kitunen V., Smolander A., Inhibition of nitrification in soil by monoterpenes, ... of compounds inhibiting nitrogen mineralization (i.e. 20000-fold less in clear-cut plot than in the forest). Net nitrification was mainly the highest in soils originat- ing from be...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Addressing spatial variability in provenance experiments exemplified in two trials with black spruc" pps
... 1970’s and 1990’s. e choice of tree species for re- forestation of immission clearings and restoration of forest stands, especially in the Krušné hory Mts. (Ore Mountains) and the Jizera Mountains, ... m; spacing between individu- als is 1.2 × 1.2 m. Every plot contains 25 individuals of one provenance; provenances are represented by open-pollinated families. Data were coll...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: " Natural forest regeneration in spruce monocultures in the Ukrainian Beskids – prognosis by FORKOME model" ppt
... Carpathians and in the Beskids. According to G (1978), their area increased during two centuries from initial 126 thousand hectares to 325 thousand hectares presently. Health and density ... a possibility of de- fining felling scenarios. e interface supports de- termining the time of felling and diameters of tree species. e felling series can also be determined. e bloc...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "Short Communication Differences in the structure, species composition and diversity of primary and harvested forests on Changbai Mountain, Northeast China" ppsx
... after harvesting. By initially decreasing over- storey density and basal area, canopy openings created by logging triggered a rapid increase in recruitment into the seedling and sapling layers. ... associations of Pinus ko- raiensis and Tilia amurensis in broad-leaved Korean pine mixed forest in Changbai Mountain. Chinese Journal of Applied Ecology, 18: 1681–1687. (In Chines...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "Coppice-with-standards in floodplain forests – a new subject for nature protection" potx
... 307 stand layer. e features of the coppice-with-stan- dards silvicultural system with prevailing oak in the top layer and coppice in the bottom layer proved very interesting from an economic point ... the oak standards was set at 150 years, for the ash and elm standards it was 70 years. e oldest oak standards in the Březová forest district were as old as 586 years. e do...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "Red deer density in the air-polluted area of forest ecosystems in the Krušné hory" pdf
... deter- mined in the Jelení hora hunting district in 2007 and 2008 using the FSC method, viz 24 ± 23 individuals·km –2 (95% CI) and the CPM method, viz 105 ± 88 individuals·km –2 (95% CI) and in ... omorica) and white birch (Betula pubescens). Plots No. 3, 4 and 5 were laid out in the resting area of game, namely in peat bogs. Plots No. 6–8 were laid out in beech...
Ngày tải lên: 07/08/2014, 10:21
Báo cáo lâm nghiệp: "Evaluation of changes in the landscape management and its influence on animal migration in the vicinity of the D1 motorway in Central Bohemia" ppsx
... combination help to explain the existence of diverse landscapes? Fenina, 178: 55–80. W T. (1998): Landscape structure as indicators for sustainable land use? A case study in alpine and ... in uencing the landscape structures in the vicinity of the linear construction in the form of a motorway, and especially due to the accompanying structures of linear or polygon character...
Ngày tải lên: 07/08/2014, 10:21
Báo cáo lâm nghiệp: "Quality of wood in the stands of poplar clones" docx
... pulp industry and class D1 includes fuel wood. e volume of larger decay or cavity, mainly in lower parts of stems, was included in waste. In 2007 the standard STN 48 0056 was amended and traditional ... these issues in Slovakia. In the past models of tree and stand assortment tables were con- structed for 8 commercially important tree species, namely for spruce, fir, pin...
Ngày tải lên: 07/08/2014, 10:21
Báo cáo lâm nghiệp: " Influence of a planting hole application of dolomitic limestone powder and basalt grit on the growth of Carpathian birch (Betula carpatica W. et K.) and soil chemistry in the air-polluted Jizerské hory Mts." pptx
... content in the initial years after planting. is dif- ference, however, gradually diminished. A marked rise in foliar P was recorded in 2001, nonetheless, no significant increasing or decreasing linear ... the K cations, in contrast to liming, surely participated in it. e increased CEC as a result of liming and also basalt grit application is in line with the expectations a...
Ngày tải lên: 07/08/2014, 10:22