Báo cáo lâm nghiệp: "Response to an ozone gradient of growth

Báo cáo lâm nghiệp: "Response to an ozone gradient of growth and enzymes implicated in tolerance to oxidative stress in Acer saccharum (Marsh.) seedlings" pot

... tolerance of sugar maple to O 3 and on the detoxiﬁcation and repair capacities of sugar maple seedlings under an extensive gradient of O 3 in contrasting light environments. Thus, the aim of ... MATERIAL AND METHODS 2.1. Growth of the seedlings and fumigation treatments One hundred and forty four sugar maple (Acer saccharum Marsh .) seedlings (two years...

Ngày tải lên : 08/08/2014, 00:22

11
392
0

Báo cáo lâm nghiệp: "Response of the Norway spruce (Picea abies [L.] Karst.) root system to changing humidity and temperature conditions of the sit" ppt

... weaker than in older stands and reaches lesser rooting depths. In general, it is necessary to take in account increased sanitary felling in the al- ready injured (weakened) older stands. e analyses ... of drought), weak and malformed root system (induced by planting biotechnique and forest stand tending) and planting of non-autochthonous Norway spruce. J. FOR. SCI....

Ngày tải lên : 07/08/2014, 03:22

10
338
0

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

... (Can .) (e), Eriophyes leionotus (Nal .) (f) depending on the applied dose of dolomitic limestone (t/ha) ( %) (t/ha) (a) (b) (d)(c) (f) (e) ( %)( %) ( %) ( %) ( %) (t/ha) (t/ha)(t/ha) (t/ha)(t/ha) ... signiﬁcant and the diﬀerence between the spring and summer aspect is related to the spring feeding and persistence of leaves with mines even in the summ...

Ngày tải lên : 07/08/2014, 10:22

7
261
0

Báo cáo lâm nghiệp: "Response of Douglas-ﬁr leaf area index and litterfall dynamics to Swiss needle cast in north coastal Oregon, USA" ppt

... plantation in New Zealand [69] and a Pinus taeda plantation with varying water and nutrition amendments in the southern United States [52]. Our understanding of the seasonal variation in stand ... expected to cause a decrease in standing LAI, an in- crease in annual litterfall (including foliage turnover rate), and an upward shift in the proportion of foliage lit...

Ngày tải lên : 07/08/2014, 16:20

12
337
0

Báo cáo lâm nghiệp: "Response to natural and simulated browsing of two Mediterranean oaks with contrasting leaf habit after a wildﬁre" docx

... promoted extensive land use changes involving the conversion of 2365 ha of post-fire woodlands (9.7% of the total burned area) to rangelands [16]. In these areas, domestic cattle, mainly cows, eat grasses and resprouting ... significant effect of species and a very important effect of browsing in total height and crown projection (Tab. II). These variables attained higher va...

Ngày tải lên : 08/08/2014, 00:22

7
386
0

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

... effect and its interactions (AB)ij and (AC)ik were regarded as random effects and all others as fixed effects. The following mean squares (MS) were 640 U. Nilsson, G. Örlander (Fig. 1). Seedling growth ... spread); 7 = differentiation of shoot (basal needles spread); and 8 = onset of new buds. Five seedlings per treatment, block and planting year were har- vested during dor...

Ngày tải lên : 08/08/2014, 01:21

7
248
0

Báo cáo lâm nghiệp: "Evaluation through a simulation model of nutrient exports in fast-growing southern European pine stands in relation to thinning intensity and harvesting operations" doc

... SI 20 and 15% of thinning intensity to 30% for SI 12 and the strongest thinning) and in thinnings (close to 25% higher matching the best site quality and the strongest thinning). The ratio between ... of percentage of trees removed and SG-ratio tested depending on thinning intensities for radiata pine and maritime pine. Pinus radiata Pinus pinaster Intensity of First...

Ngày tải lên : 07/08/2014, 16:21

10
304
0

Báo cáo lâm nghiệp: "Ecological conditions influencing the localization of egg-laying by females of the cockchafer (Melolontha hippocastani F.)" pps

... degree of weed infestation at the time of swarming was evaluated statistically using variance analysis (ANOVA). Considering that the values of the individual degrees of factors were very unbalanced ... the damage and the individual characteristics of the experimental plots. e relation between the extent of the damage and the method of estab- lishment of the stands...

Ngày tải lên : 07/08/2014, 03:22

9
302
0

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

... ground of minor preference of small mammals in food than in domestic fowl (B et al. 195 9) and also thanks to intensive additional feeding and perhaps also due to changes in the ethology of ... 200 2). MATERIAL AND METHODS e study was carried out in 2002 to 2005. Small mammals were sampled using the standard method of line trapping by means of sna...

Ngày tải lên : 07/08/2014, 03:22

8
282
0

Báo cáo lâm nghiệp: "Can 13C stable isotope record of Norway spruce tree rings display the effect of environmental conditions" pot

... Karst .) forest of at least secondary origin, with scarce Euro- pean beech (Fagus sylvatica L .). e land use history of the catchment suggests important timber harvesting and charcoal and potash ... S., ANDREASSEN K., CLARKE N., TORSETH K., TVEITO O.E., STRAND G.H., TOMTER S., 2004. e possible in uence of nitrogen and acid deposition on forest growth in Norway. F...

Ngày tải lên : 07/08/2014, 03:22

7
413
0

Báo cáo lâm nghiệp: "Response to an ozone gradient of growth and enzymes implicated in tolerance to oxidative stress in Acer saccharum (Marsh ) seedlings" pot

Báo cáo lâm nghiệp: "Response to an ozone gradient of growth and enzymes implicated in tolerance to oxidative stress in Acer saccharum (Marsh.) seedlings" pot

Báo cáo lâm nghiệp: "Response of the Norway spruce (Picea abies [L.] Karst.) root system to changing humidity and temperature conditions of the sit" ppt