Báo cáo lâm nghiệp: "Grouping species for predicting mixed t

Báo cáo lâm nghiệp: "Grouping species for predicting mixed tropical forest dynamics: looking for a strategy" pptx

... done to date, like those available in databases of taxa char- acteristics. 5. SELECTED CLUSTERING STRATEGY FOR MODELLING TROPICAL FOREST DYNAMICS Ecological strategies show a major drawback: once ... How to assign rare species with unreliable parameters or even missing data? (ii) How to extrapolate a species classifi- cation on a well documented forest to another forest...

Ngày tải lên : 08/08/2014, 00:22

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Báo cáo lâm nghiệp: "Some methodological aspects of the National Forest Inventory and Monitoring in Slovakia" pptx

... exist for assessing the forest state – survey of natural conditions and forest ecology, detection of forest stands condition for forest management needs, and the national monitoring of forest ... evaluation of NFIM data. Estimation of parameters of tree qualitative variable Let us assume that we evaluate a tree qualitative variable, for example the relative proportion...

Ngày tải lên : 07/08/2014, 04:20

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Báo cáo lâm nghiệp: " Comparison of three methods to determine optimal road spacing for forwarder-type logging operations" pdf

... road density and spacing should be analyzed. In Austria, the road density is 49.1 m/ha for small forests less than 200 ha, 41.8 m/ha for private forests, 33.27 m/ha for federal forests and average ... transpor- tation distances and road net extension. Studia Forestalia Suecica, No. 18: 70. SESSIONS J., 1986. Can income tax rules a ect management strategies for forest roads. We...

Ngày tải lên : 07/08/2014, 04:20

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Báo cáo lâm nghiệp: "Intensively fertilised seedlings of the beech (Fagus sylvatica L.) for artificial regeneration of the spruce stands in the process of conversion" pdf

... treatment (application of foliar nutrition only), they all achieved the parameters of established plantation in the same time interval (in 4 th year after planting), – the equalisation of average ... site) are cli- matically optimal for the European beech growth. Prior to planting, soil samples were taken from both localities to be analysed in a laboratory. e samples were analysed...

Ngày tải lên : 07/08/2014, 04:20

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Báo cáo lâm nghiệp: "Integrating revenues from carbon sequestration into economic breeding objectives for Eucalyptus globulus pulpwood production" ppt

... Interim Australian Standard TM : Forest management – Economic, social, environmental and cultural criteria and requirements for wood production (known as The Australian Forestry Standard), Australian Forestry ... Tasmania, Private Bag 55, Hobart, Tasmania 7001, Australia b PlantPlan Genetics Pty Ltd. Private Bag 55, Hobart, Tasmania 7001, Australia c School of Forestry, University of Ca...

Ngày tải lên : 07/08/2014, 16:20

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Báo cáo lâm nghiệp: "Assessment of tension wood detection based on shiny appearance for three poplar cultivars Miguel Angel BADIA, Frédéric MOTHE, Thiéry " pot

... Yoshida M., Okuda T., Okuyama T., Tension wood and growth stress induced by artificial inclination in Liriodendron tulipifera Linn. and Prunus spachiana Kitamura f. ascendens Kitamura, Ann. For. ... tangential direction and 1 mm in the radial one (i.e. thickness of the line). They were then transferred onto a transparent Mylar film containing additional information such as pith location an...

Ngày tải lên : 08/08/2014, 00:21

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Báo cáo lâm nghiệp: "Changing electrophoretic patterns of glutamate dehydrogenases and aspartate aminotransferases in a few tree species under the influence of ectomycorrhization" potx

... was represented as traces in the mycorrhiza, which exhibited a high level of NAD-GDH activity as did the non-mycor- rhizal roots (Fig. 1 B). As for aspartate aminotransferase, ... 111, 683-692 Khalid A. , Boukroute A. , Botton B. & Martin F. (1988) The aspartate aminotransferase of the ectomycorrhizal fungus Cenococcum geophi- lum: purification...

Ngày tải lên : 09/08/2014, 04:20

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Báo cáo lâm nghiệp: "Analysis of some dynamic series of forest production and trends of forest economics in the Czech Republic" ppt

... surveys and green reports are sources of highly aggregated national data on forestry (and the only official sources at the same time) that may how- ever significantly differ already at a regional level ... social and economic aspects of sustainable forestry, particularly as far as the assessment of forest products and services is concerned with the aim to obtain reliable data for plan...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "About the benefits of poststratification in forest inventories" potx

... simulation study, it was intended to create an artiﬁcial population as close as possible to a real forest landscape. ere- fore, volume data and actual forest coverage from a geographical information ... Germany 2 Facultad de Ciencias Forestales, Universidad de Concepción, Concepción, Chile ABSTRACT: A large virtual population is created based on the GIS data base of a forest...

Ngày tải lên : 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "Production and humus form development in forest stands established on agricultural lands – Kostelec nad Černými lesy region" potx

... mountain and pied- mont lands, the abandoned areas were also reforest- ed at the middle and lower altitudes (K 1976). e experimental plantations as well as the practical and commercial ones ... sylvestris), the plot area is 0.25 ha. e total stand area is 2.50 ha. e second plot is located in the stand of Norway spruce (Picea abies) of total area 3.98 ha, the plot area is 0.191 ha....

Ngày tải lên : 07/08/2014, 03:22

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