Báo cáo lâm nghiệp: " Effects of site preparation with micro-basins on Pinus halepensis Mill afforestations in a semiarid ombroclimate" potx

Báo cáo lâm nghiệp: " Effects of site preparation with micro-basins on Pinus halepensis Mill. afforestations in a semiarid ombroclimate" potx

... of site preparation with micro-basins on Pinus halepensis Mill. afforestations in a semiarid ombroclimateAlberto SAQUETE FERRÁNDIZ a *, Mar a José LLEDÓ SOLBES a , Antonio ESCARRÉ ESTEVE a , ... pre-ferring a particular orientation and which only appear in thatspecific orientation, whereas some species appearing in oneFigure 6. Annual mean ring growth compared to spring rainfall on that particular ... de Investigación y FormaciónAgraria [Agriculture Research and Training Centre] in Granada,Spain, to the nursery centre of the Junta de Andaluc a [AndalusianRegional Government] and the funding...

Báo cáo lâm nghiệp: "Effects of high temperatures and ash on seed germination of two Iberian pines (Pinus nigra ssp salzmannii, P sylvestris var iberica)" pps

... effect on seed germination (Trabaud and Casal, 1989;Neéman et al, 1993; González-Rabanal andCasal, 1995), whereas charred wood canfacilitate germination, probably via nitrates(Keeley, ... tempera-tures on germination of Pinus halepensis Mill. andP pinaster Aiton ssp. pinasler seeds in southeastSpain. Vegetatio 116, 69-72Naveh Z (1974) Effects of fire in ... regeneration was observed 1 year after a large fire in a Pinus nigra forest (15 000 ha) in southern Cuenca, eastern Spain and in Catalonia (> 25 000 ha) (Retana, perscomm).With...

Báo cáo lâm nghiệp: " Effects of long-term water stress on net photosynthesis, growth and water-use efficiency of conifers in the field" doc

... netphotosynthesis was always greater on long and sunny summer days with highdaily integrals of water vapor saturationdeficit. On moist and overcast days orshort days in autumn, however, ... MacGregor M.E. &Talbot A. J.B. (1978) The characteristics of sea-sonal and ontogenetic changes in thetissue-water relations of Acer, Populus, Tsuga,and Picea. Can. ... Thepredawn water potential (Vfpd) was used as a measure of water supply. This potential washeld at a constant level in each group for a pe-riod of 2 yr by controlling...

Báo cáo lâm nghiệp: "Effects of drainage treatment and stand growth on changes in runoff components from a forested watershed" pps

... 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 ... periodical variability of the runoﬀ generation. Black area is a permanent stream runoﬀ source. Horizontally-hatched areas generate runoﬀ seasonally in late winter, spring and early summer. Areas ... of variable source areas and consequent changes in a drainage network during a discharge event. e runoﬀ investigation was carried out in a forested watershed situated in the summit area of the...

Báo cáo lâm nghiệp: "Effects of nitrogen on the selection of food by Phyllobius arborator (Herbst)" pot

... consumption of food in the creation of a fat body in females of Lochmaea caprae (L.) Diﬀerences of imagoes in the consumption of food in particular variants cannot be confronted with ﬁndings ... 60%, insolation 0%) (with a 4-hour gradual transition between them) for the period of monitoring (6 days).Using a Leave Area Meter (AM 300), the area of leaves with feeding marks was scanned ... between particular variants. On the basis of the evaluation of colour changes at the end of the growing season using non-parametric statistics (Kruskal-Wallis test) a statisti-cally signiﬁcant...

Báo cáo lâm nghiệp: "Effects of spruce, beech and mixed commercial stand on humus conditions of forest soils" pdf

... growing season, in autumn, after the leaf fall (Fagus sylvatica) in 2004–2006. Particular samples were taken by a standard method using a metal frame of a known area (0.1 m2). In each of ... range, which can be another factor indicat-ing man-conditioned acidiﬁcation of the soil proﬁle. According to the classiﬁcation of buﬀer zones, the spruce monoculture occurs predominantly in ... generally by Al3+ sorption (U 1983). Aluminium ions act partly as a weak acid and partly toxically, thus limiting mycorrhizae. erefore, the compensation of acid inputs within this zone...

Báo cáo lâm nghiệp: " Effects of ectomycorrhizal inoculation and the type of substrate on mycorrhization, growth and nutrition of containerised Pinus pinea L. seedlings produced in a commercial nursery" docx

... obtainmycorrhizal P. pinea seedlings produced in container. The highquantity of spores that can be obtained from one basidioma andthe ease of application of this type of inoculum makes of ... with a solution of 20-7-19 Peters Professional Conifer Grower (Scott, Tarragona, Spain)Tabl e I. Analytical characteristics of substrates used to grow Pinus pinea seedlings in the nursery of ... Williams S., Official methods of analysis of the Association of Official Analytic Chemists, Sidney W. (Ed.), AOAC, Inc. Arling-ton VA, 1984.Nursery production of containerised P. pinea 819(1.8...

Báo cáo lâm nghiệp: " Effects of intensive versus no management strategies during an outbreak of the bark beetle Ips typographus (L.) (Col.: Curculionidae, Scolytinae) in the Tatra Mts. in Poland and Slovakia" ppsx

... first stages of the outbreak in NP Šumava [22], to a larger extent than in the Tatra mountains. The area of clearcutsafter salvage cuttings was considerably larger than the area of dead trees in ... / montagnes1. INTRODUCTIONThe Tatra Mountains are the highest mountain range in theCarpathian arch. They are located along the border betweenSlovakia (75% of mountain land area) and Poland ... barriers) according to the zonation of attacked areas based on their naturalness and ecological stabil-ity [27].Intensive salvage cutting along with the widespread use of trap trees and low intensity...

Báo cáo lâm nghiệp: "Effects of artificial damage on the branching pattern of Nothofagus dombeyi (Nothofagaceae)" ppsx

... like in many other tree species, thebranching system consisting of a parent shoot extended in oneyear and a cohort of offspring shoots extended a year later ischaracterized by a gradient of increasing ... the effects of bud and leaf removal on the extent of organ differentiation in nearby undamaged buds were assessed. Thefour most distal axillary buds and leaves of seven growing main-branch ... branching pattern of shoots afterdamage occurring at different stages of the yearly growth cycle. 2. MATERIALS AND METHODS2.1. Sampling site and treesThe sampling site lies within the Nahuel...

Báo cáo lâm nghiệp: "Effects of light intensity on the growth and energy balance of photosystem II electron transport in Quercus alba " potx

... analyzedseparately for each light level using one-way analysis of variance.Similarly, differences in RCD and HT among light levels were ana-lyzed separately for each measuring date using one-way ... and thus more biomass was pro-duced by the same amount of leaf area. The rapid rise in LAR with decreasing light intensity (Tab. I) together with the abilityto maintain a positive carbon balance ... photosynthetic apparatushas a lower conductance as actinic light increases. The con-ductance estimate is derived by dividing ETR by 1-qP to obtainan approximate estimate of the conductance of the...

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