Báo cáo lâm nghiệp: "Evaluation through a simulation model o

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

... and SG-ratio tested depending on thinning intensities for radiata pine and maritime pine. Pinus radiata Pinus pinaster Intensity of First thinning Second thinning First thinning Second thinning thinning ... study was to calculate the accumu- lation and the export of nutrients over time in Pinus pinaster (maritime pine) and Pinus radiata (radiata pine) stands...

Ngày tải lên : 07/08/2014, 16:21

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Báo cáo lâm nghiệp: "Aboveground biomass relationships for mixed ash (Fraxinus excelsior L. and Ulmus glabra Hudson) stands in Eastern Prealps of Friuli Venezia Giulia (Italy)" pptx

... mean annual temperature is 10° C and the annual rainfall is about 2500 mm. The stand occupies an area of 2.4 ha and was partially used in the past as grassland. The forest is dominated by ash ... leaf area with basal area. 2. MATERIALS AND METHODS 2.1. Study area All data were collected in a uneven-aged mixed ash stand in Taipana (Udine, Friuli Venezia Giulia, Italy) at 600 m...

Ngày tải lên : 08/08/2014, 00:22

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Báo cáo lâm nghiệp: "Evaluation of a semi-empirical model for predicting ﬁne root biomass in compositionally complex woodland vegetation" ppsx

... project that examined patterns of below- and above-ground biomass in Eu- calyptus populnea woodland ecosystems along a rainfall gradient in northeast Australia [25]. Here, data from the xeric- and ... in compositionally diverse woodland vegetation from contrasting climatic regions in northeast Australia. 2. MATERIALS AND METHODS 2.1. Data source The data used in this work...

Ngày tải lên : 07/08/2014, 16:20

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Báo cáo lâm nghiệp: "Production potential and ecological stability of mixed forest stands in uplands – VI. A beech/larch stand on a mesotrophic site of the Křtiny Training Forest Enterprise" pot

... dominant stand and the volume of dead trees is not included in the calculation. Stand density was calcu- lated according to standard mensurational practice from the ratio of actual basal area ... potential and stability of mixed forest stands in uplands. A mixed beech/larch stand that was established by natural regeneration in 1934 to 1942 is assessed. e stand is...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "Evaluation of the growth and health status of selected clone mixtures in comparison with ordinary planting stock" docx

... time being. e health status (defoliation was not higher than 10% in any variant and there occurred hardly any changes in the coloration of assimilatory organs 2 years after outplanting) and ... rašelina RP indicates high statistical signiﬁcance of the in uence of provenance of particular variants (clones) (Table 2). Dispositions to the growth rate of particular clone...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "Evaluation of squared timber and log products in the Hyrcanian Forests of Iran" doc

... northern areas of Iran are known as Hyrcanian Forests and are distributed across three provinces, namely Gilan, Maznadarn and Golestan. These provinces are situated in the north of Iran near the Caspian ... known as the Northern Forests or Hyr- canian Forests and are distributed across three provinces: Golestan, Mazandaran, and Gilan.  e majority of these forests are loca...

Ngày tải lên : 07/08/2014, 10:21

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Báo cáo lâm nghiệp: "Evaluation of changes in the landscape management and its influence on animal migration in the vicinity of the D1 motorway in Central Bohemia" ppsx

... existence of diverse landscapes? Fenina, 178: 55–80. W T. (1998): Landscape structure as indicators for sustainable land use? A case study in alpine and lowland landscapes of Austria. In: D ... based on their spa- tial and technical characteristics. e aim was to obtain information on the migration of wildlife in relation to change in the landscape structur...

Ngày tải lên : 07/08/2014, 10:21

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Báo cáo lâm nghiệp: "Evaluation of physiological and health state of Norway spruce plants with diﬀerent growth rate at juvenile stage after outplanting at" pdf

... and 180 min of desiccation.  e whiskers show the conﬁ dence interval at a 5% signiﬁ cance level Reaction of the assimilatory apparatus to increasing radiation intensity At the increasing intensity ... stem and branches Type of damage Description of damage Index Stem damage no damage substitute shoots stem breakages 0 1 2 Branch damage no damage moderate damage (small inj...

Ngày tải lên : 07/08/2014, 10:21

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Báo cáo lâm nghiệp: "Evaluation of twenty-years-old pedunculate and sessile oak provenance tria" doc

... provenances planted on all plots is shown in Fig. 6.  e mean values of height and breast-height di- ameter, separately for pedunculate and sessile oak, and total mean values for individual provenance ... heights and dbh are presented in Table 4. Sum- mary statistics of source data (tree heights and dbh values) at all sites are given in Tables 6 and 7. The resulting...

Ngày tải lên : 07/08/2014, 10:21

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Báo cáo lâm nghiệp: "Evaluation of three methods for estimating the Weibull distribution parameters of Chinese pine (Pinus tabulaeformis)" pps

... distri- butions of black spruce (Picea mariana) plantations in eastern Canada. Canadian Journal of Forest Research, 34: 2424–2432. MABVURIRA D., MALTAMO M., KANGAS A. , 2002. Pre- dicting and calibrating ... simulation techniques are used to generate Weibull populations with known parameters and the estima- tors are analyzed and evaluated from Chinese pine (Pinus tabula...

Ngày tải lên : 07/08/2014, 10:22

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