Báo cáo lâm nghiệp:" Response of newly planted Norway spruce seedlings to fertilization, irrigation and herbicide treatments" pps

... various irrigation, herbicide and fertiliza- tion treatments. In each graph, not irrigated plots are shown to the left and irrigated plots to the right. Response of newly planted Norway spruce seedlings ... 10.1051/forest:2003056 Original article Response of newly planted Norway spruce seedlings to fertilization, irrigation and herbicide treat...

Ngày tải lên: 08/08/2014, 01:21

... 2007). e aim of the paper is to evaluate the response of some phytophages to changes being in progress in assimilatory organs in the first four years after the application of dolomitic limestone. A ... 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,...

Ngày tải lên: 07/08/2014, 10:22

... weight values of seeds of serotinous and mature brown cones in both sites. The high production of mature and serotinous cones and viable seeds will promote high values of seedling density and survival ... prob- ability of canopy fires and consequent death of P. halepensis trees. Both the natural and artificial expansion of P. halepensis stands along with the increase i...

Ngày tải lên: 07/08/2014, 16:20

... causes of the decline of spruce stands in five selected regions of the Czech Republic – from FAVZ 2 to FAVZ 5 in nutrient-rich and acidic sites. With respect to the size of the pa- per and to the ... biotechnique and forest stand tending) and planting of non-autochthonous Norway spruce. J. FOR. SCI., 54, 2008 (6): 245–254 251 DISCUSSION Symptoms of injury, det...

Ngày tải lên: 07/08/2014, 03:22

... measurements A series of permanent plots was used in this study to scale tree leaf area to the stand-level and to relate stand attributes to LAI and foliage litterfall. A total of 26 young plantations ... canopy and by acceler- ated addition of relatively high-quality litter to the forest floor. Quantification of these fluxes should therefore lead to a better understand...

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 ... conductance and shoot growth of Norway spruce, particularly the effect of acidity and the addition of a realistic ionic mixture to simulated acidic pre...

Ngày tải lên: 09/08/2014, 04:20

... F., Masera O.R., Assessment and measurements issues related to soil carbon sequestration in land-use, land-use change, and forestry (LULUCF) project under the Kyoto Protocol, Climatic Change 65 ... than in NE forest (64.6 Mg ha −1 ). The tree species and age of stands of FE are similar to NE forest; but because of a noticeable difference of annual rainfall, FE (drier) had a h...

Ngày tải lên: 07/08/2014, 16:20

... abundance of common AMF species The number of spores per 100 g of dry soil was above 400 at sites 1, 5 and 7, between 210 and 300 at sites 3 and 6, and between 135 and 150 at sites 2 and 4 (Tab. ... The sampling was conducted from October to December in 2002 and 2003. 2.4. Root clearing and staining One to 5 g of T. articulata fine roots were collected and maint...

Ngày tải lên: 08/08/2014, 00:22

... photosynthesis, photochemical efficiency of photosystem II, photosynthetic pigments, leaf area and stomatal density. The parameters stomatal conductance, net photosynthesis and pho- tochemical ... nursery were planted in the spring of 1992 in the experimental garden of the Institute of Silviculture of the University of Freiburg, Germany, half i...

Ngày tải lên: 08/08/2014, 18:21

... of the great needs of local popu- lations for wood. Native species adapted to aridity do not produce enough wood. Plantations of adapted and fast-growing species seem to ... for their salt-tolerance. Saline stress was applied at germination and to seedlings in a greenhouse. Materials and Methods Seeds wete collected in the natural range...

Ngày tải lên: 09/08/2014, 04:20