Báo cáo lâm nghiệp: "Effects of microsite on growth of Pinus cembra in the subalpine zone of the Austrian Alps" docx

... Hydrotechnical meliorations. Drainage channels. Praha, ČSNI 1993. (in Czech) Drainage (1973): Principles and applications. Part II – eo- ries of drainage and watershed runoff. Wageningen, Interna- tional ... based on the expansion and shrinkage of variable source areas and consequent changes in a drainage network during a discharge event. e runoff investigation...

Ngày tải lên: 07/08/2014, 03:22

... Weevils of the genus Phyllobius – consumption of food on birch affected by differentiated inputs of nitrogen Fig. 7. e weight of the dry matter of birch leaves affected by the application of ammonium ... Mean consumption of food by females of Phyllobius arborator after 6 days of feeding in a laboratory rearing (0.95 reliability intervals) Fig. 10. Me...

Ngày tải lên: 07/08/2014, 10:21

... horizon in different forest stands 0 1 2 3 4 5 6 Spruce forest stand Beech forest stand Mixed forest stand pH layer L layer F layer H Ah Mixed Beech Spruce forest forest forest stand stand stand 0 ... 40 Spruce forest stand Beech forest stand Mixed forest stand C/N layer L layer F layer H Ah Mixed Beech Spruce forest forest forest stan...

Ngày tải lên: 07/08/2014, 10:21

... high quantity of spores that can be obtained from one basidioma and the ease of application of this type of inoculum makes of it a method particularly well suited for large-scale inoculation of containerised ... (Scott, Tarragona, Spain) Tabl e I. Analytical characteristics of substrates used to grow Pinus pinea seedlings in the nursery of Breda (Girona,...

Ngày tải lên: 08/08/2014, 00:22

... of site preparation with micro-basins on Pinus halepensis Mill. afforestations in a semiarid ombroclimate Alberto SAQUETE FERRÁNDIZ a *, Mar a José LLEDÓ SOLBES a , Antonio ESCARRÉ ESTEVE a , ... pre- ferring a particular orientation and which only appear in that specific orientation, whereas some species appearing in one Figure 6. Annual mean ring growt...

Ngày tải lên: 08/08/2014, 00:22

... assess the effects of traumatic factors on the branching pattern of N. dombeyi through artificial interventions on shoots. The second- ary objectives were the evaluations of differences in the branch- ing ... the size of the largest branch and the mean size of the other branches on a particular shoot of N. dombeyi depends on a number of factor...

Ngày tải lên: 08/08/2014, 00:22

... article Effects of light intensity on the growth and energy balance of photosystem II electron transport in Quercus alba seedlings G. Geoff WANG a *, William L. BAUERLE b a Department of Forest and Natural ... shade intensity increased. The apparent reduction in electron transport rate (ETR) through photosystem II (PS II) increased with l...

Ngày tải lên: 08/08/2014, 00:22

... 2003) Abstract – We examined the impacts of competing vegetation on survival and juvenile growth of white spruce (Picea glauca (Moench) Voss) on 3 units in south-central Alaska and on 3 units in interior Alaska. ... sus- ceptibility of seedlings to fall freezing injury. Height and diameter of white spruce were increased by decreasing competing...

Ngày tải lên: 08/08/2014, 01:21

... SE. Field vegetation control and pine weevil damage 671 colonisation following scarification is an important factor to consider when attempting to reduce pine weevil damage. The vegetation cover ... article Effects of field vegetation control on pine weevil (Hylobius abietis) damage to newly planted Norway spruce seedlings Gưran ƯRLANDE...

Ngày tải lên: 08/08/2014, 01:21

... of this study was to compare the impact of six tree species on vegetation and soil. Eighty stands growing side by side, and of different dominant species, were selected in 26 locations. Within ... studies have examined the impact of tree species on the composition of * Corresponding author: laugusto@bordeaux.inra.fr Effects of tree species on vegetat...

Ngày tải lên: 08/08/2014, 01:21

... 10.1051/forest:2004025 Original article Effects of microsite on growth of Pinus cembra in the subalpine zone of the Austrian Alps Mai-He LI a,b *, Jian YANG c a Institute for Forest and Mountain Risk Engineering, ... cor- responding to the decrease in length of the growing season [19]. Paulsen et al. [31] found that annual radial increments of Pinus...

Ngày tải lên: 08/08/2014, 01:21

... nitrification in non-nitrifying soil, although mineralisation increased. Finally, Barg and Edmonds [4] found no change in mineralisation and nitrification rates after partial or total clear- cut, as ... containing an anion resin bag and six cylinders containing a cation resin bag were set up. Finally, at the beginning of October 1996, the quantity of resin in each cy...

Ngày tải lên: 08/08/2014, 01:21

... defoliation of oaks in the spring – especially when occurring in consecutive years – reduces the frost hardiness of the bark in the following winter via a reduc- tion in the content of soluble sugars ... 455463 â INRA, EDP Sciences, 2004 DOI: 10.1051/forest:2004039 Original article Effects of defoliation on the frost hardiness and the conce...

Ngày tải lên: 08/08/2014, 01:21

... that Pinus halepensis root systems restrain growth of C. monspe- liensis in high density conditions after fire. Effect of fire recur- rence on Mediterranean vegetation has been also studied. In ... of competition on the root system architecture of Pinus halepensis Mill. and Cistus monspeliensis L. saplings colonizing a recently burnt area in SE Spain, in: T...

Ngày tải lên: 08/08/2014, 01:22

... the plant species diversity of forest-floor vege- tation in long -rotation L. kaempferi plantations, as compared with that of standard -rotation plantations and abandoned cop- pice forest, in central ... 31]). Thus, investigation of plant species diversity in long -rotation plantations requires compa- rison with standard -rotation plantations. Roberts and...

Ngày tải lên: 08/08/2014, 01:22