Báo cáo lâm nghiệp: "Field trials of potential attractants and inhibitors for pine shoot beetles in the Yunnan province, China" pps
Báo cáo lâm nghiệp: "Field trials of potential attractants and inhibitors for pine shoot beetles in the Yunnan province, China" pps
... pine and other pine species, and between the trunk xylem and twig xylem and phloem of Yunnan pines. Unlike Pinus sylvestris L., a major host of T. piniperda in Europe, the trunk xylem of P. yunnanensis ... attractiveness of the YB lures may be in the late spring-early summer, when the beetles are dispersing to the shoots. Our results and the profile...
Ngày tải lên: 08/08/2014, 00:21
Báo cáo lâm nghiệp: "Field performance of Pinus pinea and P. halepensis seedlings inoculated with Rhizopogon spp. and outplanted in formerly arable land Javier" ppsx
... deter- mine the usefulness and possibilities of this simple way of esti- mating plant performance after outplanting. Inoculation of seedlings for the restoration of formerly arable lands under the established ... with inoculated and non-inoculated seedlings in an abandoned cereal field representative of the Mediterranean area. Pinus halepensis Mill. and Pinus pinea...
Ngày tải lên: 08/08/2014, 01:22
Báo cáo lâm nghiệp: "Energy consumption of a chipper coupled to a universal wheel skidder in the process of chipping wood" pptx
... directly in the scrub, on the skid road and in the factory. ese are input materials for subsequent in- dustrial delimbing, e.g. in chemical industry for the production of cellulose and paper, in ... the result of chipping, e.g. the shape and position of a loading inlet, shape and setting of knives, number of knives on a disc and also the s...
Ngày tải lên: 07/08/2014, 10:21
Báo cáo lâm nghiệp: " Diurnal evolution of water flow and potential in an individual spruce: experimental and theoretical study" pps
... obtain an estimation of the total re- sistance of the transpirational pathway (Fig. 3). It is possible to determine the 3 parameters (2 resistances and 1 capacitance) of ... of the equi- valent circuit having the same transfer function (= transpiration versus absorption). This trans- formation allows those interested in water balance of...
Ngày tải lên: 09/08/2014, 04:20
Báo cáo lâm nghiệp: "Field studies of leaf gas exchanges (Elaeis guineensis Jacq.)" pdf
... in the field: Bolle-Jones (1968) determined the amount of soluble sugars in 9 yr old leaf- lets and Corley (1983) observed the effects of leaf senescence on photosyn- thesis ... variations in leaf photosyn- thesis with internal and external factors. Several authors have been working on the C0 2 assimilation rate (A) in oil palm. Most...
Ngày tải lên: 09/08/2014, 04:20
Báo cáo lâm nghiệp: " Floodplain forests of Litovelské Pomoraví and their management" pps
... verge the winding of the river. e prevailing STG in the floodplain forests of Litovelské Pomoraví are Ulmi-fraxineta carpini v.s. of a higher class in the driest part of the alluvium out of the ... classified and described in detail. Assessment of the ecological stability of the forest stand was carried out using biogeographical differentiation of the...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "Antioxidant properties of wood extracts and colour stability of woods" pps
... + L· → (t 3 ) In the present case, the inducer is AIBN and LH stands for the substrate to be oxidized, methyl linoleate; in the simplest case – high pressure of oxygen – the termination steps ... most of our extracts inhibit the AIBN initiated oxidation of methyl linoleate. Of the industrial extracts, pine, walnut-tree and pecan extracts are the less efficient...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Effect of leaf biomass and phenological structure of the canopy on plot growth in a deciduous hardwood forest in northern Japan" pot
... elongation of long shoots becomes less important, and the maintenance of foliage by short shoots becomes increasingly important. Therefore, as the stand develops, the pro- portion of long shoots in the ... number and basal area in the study plots. Thinning was performed in 1984. Values (stem number and basal area just before and after thinning and thinning rati...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Botanical determinants of foliage clumping and light interception in two-year-old coppice poplar canopies: assessment from 3-D plant mock-ups" ppsx
... dur- ing early spring, revealing that changes in canopy LAI rather than in µ was the determinant factor driving light interception during a large fraction of the growing season. This is in agree- ment ... 4). τ and µ were generally more sensitive to the tested scenarios in Gho than in Tri. Additionally, decreasing effects over time in µ rather than in τ for Gho and...
Ngày tải lên: 07/08/2014, 16:21
Báo cáo lâm nghiệp: " Differential effects of N, P and K on photosynthesis and partitioning of N in Pinus pinaster needles" pptx
... fertiliser often increases the growth of Pinus pinaster Ait. and other conifers [24, 38]. The mass and area of foliage increases following fertiliser application, and this par- tially explains the growth ... [55]. Together these findings cast doubt on whether photosynthesis plays a general and/ or lasting role in the response of growth to fertiliser addition. The abse...
Ngày tải lên: 08/08/2014, 00:21