Báo cáo lâm nghiệp: "Evaluation of competition and light estimation indices for predicting diameter growth in mature boreal mixed forests" pdf
Báo cáo lâm nghiệp: "Evaluation of competition and light estimation indices for predicting diameter growth in mature boreal mixed forests" pdf
... CONCLUSIONS In this examination of competition indices for predicting diameter growth in mixed- species forests, we found that theflexible, distance-dependent crowding index was superior toother indices, but ... based indices [6, 7, 27] is also costly to ob-tain in a forest inventory. The similarity amongst the fit of Competition indices in boreal mixed forest 489mechanistically defensible. Lodgepole pine ... Evaluation of some competition indices for the pre-diction of diameter increment in planted white spruce, Can. For. Serv. Inf. Rep. FMR-X-108, 1978.[3] Bartelink H.H., Effects of stand composition and...
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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
... ca 2ha in size). One of the objectives was to investigate the in uence of specifi c sorting in a forest nursery on the growth and stability of out-plantings of Norway spruce mountain populations. ... at increasing light intensity with an Imaging-PAM 2000 device (Heinz Walz GmbH, Eff eltrrich, Germany). Mea-suring light of the intensity 3 µmol·m–2·s–1 and sat-uration impulse of the intensity ... seedlings were outplanted. In 1992, before transplanting, two-year seedlings originating from the 8th for- est altitudinal zone (FAZ) (designation of origin: B/SM/0001/22/8/TU) were divided into...
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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
... described in rooted cuttings compared to seedlings, e.g. later onset and lower intensity of dormancy and cold hardiness and earlier flushing in spring (F et al. 2000). e evaluation of the ... artificial forest regeneration in extreme mountain conditions and formation of stable forest ecosystems. It is not a classical breeding programme that would allow using standard breed-ing methods of ... conditions. Scandinavian Journal of Forest Research, 14: 425–440.J A., H V., N P. (1994): Preservation of genetic resources and forest nursery In: Status of Moun-tain Forests in the...
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Báo cáo lâm nghiệp: "Evaluation of squared timber and log products in the Hyrcanian Forests of Iran" doc
... bordering the northern part of the Alborz Mountains and ex-tend from Astara in the west of Gilan Province to Giledarreh in the east of Golestan province, and are about 800 km in length and ... export and import of wood and timber market, the trend of timber products in these forestlands has not been so regular during the last 20 years. e main types of timber products in these forests ... Wood and timber for future. Harvesting and wood industries magazine. Tehran, Forest Organization of Iran. 63–68.Anonymous (2006): Timber Products, Consuming in Iran. Annual reports of the Forest...
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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
... in uencing the landscape structures in the vicinity of the linear construction in the form of a motorway, and especially due to the accompanying structures of linear or polygon character and ... indicators for sustainable land use? A case study in alpine and lowland landscapes of Austria. In: D J.W., B R.G.H. (eds): Key Concepts in Landscape Ecology, Proceedings of the 1998 ... of land-scapes, there is a need for better understanding of the mutual interaction between the landscape and the urbanization that transforms the landscape and is the basis for its sustainable...
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Báo cáo lâm nghiệp: "Evaluation of twenty-years-old pedunculate and sessile oak provenance tria" doc
... the main reason and in the case of fl oodplain wood-land the grain size of the sediments can also be con-sidered. Also the in uence of diff erent silvicultural treatments of plants in the ... assessment of growth of individual oak prov-enances at the age of 20 years. erefore it was chosen as the main criterion for our conclusions. is value decides on stand development in the initial ... during one week in spring 2002. The influence of the replication, provenance and localities on growth and stem shape of each provenance was tested on all plots. The results were evaluated and...
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Báo cáo lâm nghiệp: "Stand structure, competition and growth of Scots pine (Pinus sylvestris L.) in a Mediterranean mountainous environment" pptx
... m in the uneven-aged stand and 10 m in the mature even-aged stand. No relationship was found betweenCDI5 and LM indices in the plantation, as a result of thinningduring the last 10 years in ... diameter increment in Scots pine stands [11]. Simplesize ratio competition indices, such as that of Hegyi [9], ex-plained over 50% of the variation in radial growth in Scotspine stands in Sweden [2].The ... yield of all-sized Scots pine dominated stands, Ann. Sci. For. 51 (1994)111–120.[14] Lorimer C.G., Test of age-independent competition indices for in- dividual trees in natural hardwood stands, For. ...
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Báo cáo lâm nghiệp: "Amounts of throughfall and lysimetric water in a sub-mountain beech forest in the Kremnické vrchy Mts" ppt
... other hand, the period of the second intervention has significantly corrobo-rated our original hypothesis about the in uence of forest management on the water-regulating function of forest stands.e ... amount of (surface and ground) water significantly in uences, both in a positive and negative way, the processes of biomass production in individual constituents of all ecosys-tems, and the ... 2/0045/08.Amounts of throughfall and lysimetric water in a sub-mountain beech forest in the Kremnické vrchy Mts. (West Carpathian Mts., Slovakia)R. J, J. PInstitute of Forest Ecology of the...
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Báo cáo lâm nghiệp: "Occurrence of Ips duplicatus (Coleoptera: Curculionidae, Scolytinae) on pines (Pinus sp.) in the Czech Republic and southern Poland – Short Communication" pdf
... the findings in Poland, next to the outbreak area (G 1997). The incidental infestations on Scots pine were also observed recently in North-ern Poland (Kartuzy Forest District), in the ... occurs on pine in Siberia. Its occurrence on Pinus strobus and Pinus sylvestris was discovered in the eastern part of the Czech Republic and in southern Poland, where the population density of Ips ... in northern Moravia and Silesia (H, K 2007). In southern Poland the occurrence of this species was detected in the whole area between the Silesian Upland in the west and Gorce in...
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Báo cáo lâm nghiệp: " Influence of temperatures and precipitation on radial increment of Orlické hory Mts. spruce stands at altitudes over 800 m a.s.l" ppt
... February and March of the year in question. e standard tree-ring chronology shows an obvious decrease in radial increments starting at the beginning of the 1970s and ending at the end of the 1980s. ... analysis of negative pointer years (Table 3). In the following period there is an increase in increments, with slight interruptions in 1996 and 2000. Another decrease was recorded starting in 2003 ... in uence the increments, most sig-nificantly at the highest mountain altitudes (Č 2007). Mountain stands can be considerably damaged mainly during winter and at the beginning of spring as...
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