Báo cáo lâm nghiệp: "A model of light interception and carbon balance for sweet chestnut coppice (Castanea sativa Mill )" pdf
Báo cáo lâm nghiệp: "A model of light interception and carbon balance for sweet chestnut coppice (Castanea sativa Mill.)" pdf
... A model of light interception and carbon balance for a sweet chestnut coppice (Castanea sativa Mill. ) L. Mordacq B. Saugier Laboratoire d’Ecologie ... respiration and aerial growth in a sweet chestnut (Castanea sativa Mill. ) coppice for several years after a cut. We designed a model to predict photosynthe- sis of heterogen...
Ngày tải lên: 09/08/2014, 04:20
Báo cáo lâm nghiệp: "A model of with even-aged beech stands productivity process-based interpretations" doc
... in the model and to guide future research. A FUNCTIONAL INTERPRETATION OF THE STAND GROWTH MODEL Volume growth equation and carbon- balance models Equations [10] and [12] may ... of equa- tions applies as well for a large range of site conditions and, if not, whether the form of range of situations than the original "normal stan...
Ngày tải lên: 08/08/2014, 18:21
Báo cáo lâm nghiệp: "A survey of forest pollution with heavy metals in the Natural Forest Region (NFR) Moravskoslezské Beskydy with particular attention to Jablunkov Pass" docx
... health status of forest stands changed and the leaf discoloration and dieback of trees occurred. e worst situation is in the north – in the eastern part of the region where groups of trees died. ... influenced by the quantity and quality of organic matter and by the altitude of sampling sites. e higher values of medians of zinc, lead and cadmium contents are fou...
Ngày tải lên: 07/08/2014, 10:21
Báo cáo lâm nghiệp: "A change in structural diversity and regeneration processes of the spruce virgin forest in Nefcerka NNR (TANAP) in relation to altitude" docx
... protection and hydrological ones in particular. A significant part of spruce stands in this forest veg- etation level preserves the character of the natural forest. Long-term monitoring of natural forests ... aspect of the survival and growth of spruce seedlings. An analysis of the influence of the seedbed on the number of spruce and rowan individuals is recorded in...
Ngày tải lên: 07/08/2014, 10:22
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
... biomass of a forest stand is the primary deter- minant of stand growth [26, 31, 35] because foliage constitutes the photosynthetic organ of a tree. For example, as a young for- est stand develops, ... 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 ratio) are shown for...
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
... 3-D CPCA model outputs (sim.) and field measurements (mes.) for poplar clones Ghoy and Trichobel. Maximum shoot height (lA1) and mean plant parameters (see Tab. I for list of abbreviations and their definitions) ... Botanical determinants of foliage clumpiness and light harvesting Studies linking botanical parameters to spatial distribution of leaf area and/ or light...
Ngày tải lên: 07/08/2014, 16:21
Báo cáo lâm nghiệp: "A comparison of two modelling studies of environmental effects on forest carbon stocks across Europe" ppsx
... the carbon pools and fluxes in more detail in Figure 1b. The model has 7 state variables for carbon and about 40 param- eters. For application to European forests the model was run for each of ... importance of the variables and of source of uncertainty. Characteristics of the two models are compared in Table I. 2. CASE STUDY 1: THE EUROBIOTA FOREST SYSTEM MODE...
Ngày tải lên: 08/08/2014, 00:22
Báo cáo lâm nghiệp: " A collection of functions to determine annual tree carbon increment via stem-analysis" pot
... calculated as the sum of each log volume and the volume of the cone formed by tree terminal bud and the highest cross-section: .(2) Equations (1) and (2) are looped for each year of tree life to yield annual ... in Alberi e Foreste per il nuovo Millennio, Proceedings of the third meeting of the Italian Society of Forest Management and Ecology (SISEF), 2003. [22] Monseru...
Ngày tải lên: 08/08/2014, 01:22
Báo cáo lâm nghiệp: "A comparison of fitting techniques for ponderosa pine height-age models in British Columbia" potx
... error and its mean squared error was almost as small as that for model (5). Therefore, I recommend the use of model (4) for estimating the height of ponderosa pine in British Columbia. The models ... terms any of the tested models would suffice [3, 4, 8, 33]. Therefore, I chose the log-logistic model because it was used successfully in the past for other species [3, 19, 33...
Ngày tải lên: 08/08/2014, 01:22
Báo cáo lâm nghiệp: " A comparison of the photosynthetic radiation response of Scots pine shoots in direct and diffuse radiation" pot
... of the photosynthetic radiation response of Scots pine shoots in direct and diffuse radiation P. Oker-Blom 1 H. Smolander 2 T. Lahti 3 ! University of Helsinki, Department of ... invariant photo- synthetic light- response curve. * Present address: University of Georqia . School of Fores Materials and Methods The material consisted of 9, 1 yr old...
Ngày tải lên: 09/08/2014, 04:20