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

... this article as: Amro et al.: A survey of classical methods and new trends in pansharpening of multispectral images. EURASIP Journal on Advances in Signal Processing 2011 2011:79. Submit your manuscript ... provide multispectral images together with a panchromatic image, that is, an image containing reflectance data representative of a wide range of bands...

Ngày tải lên: 20/06/2014, 22:20

... Results of studies have indicated that some quantitative aspects of beetle feeding in Feeding ecology of pine shoot beetles (Tomicus spp.) in tree crowns of Scots pine (Pinus sylvestris L.) stands ... distribution of losses in growth of trees caused by the feeding of pine shoot beetles Tomicus piniperda and T. minor (Col., Sco...

Ngày tải lên: 07/08/2014, 04:20

... be- tween the region of Jablunkov Pass and the rest of A survey of forest pollution with heavy metals in the Natural Forest Region (NFR) Moravskoslezské Beskydy with particular attention to Jablunkov ... detected in the area of the Jablunkov Pass in comparison with the remaining area of NFR. e spatial distinctness of...

Ngày tải lên: 07/08/2014, 10:21

... between males of P. ì canadensis and P. ni gra in fertilizing P. nigra females in the artificial species-mixed Belgian poplar stand. A paternity analysis also revealed non-random intra-specific mating ... situated in an agricultural landscape in which there are many poplar plantations of P. ì canadensis but no stands of P. nigra (except plantations of P. nigra cv....

Ngày tải lên: 07/08/2014, 16:20

... 10.1051/forest:2007016 Original article Botanical determinants of foliage clumping and light interception in two-year-old coppice poplar canopies: assessment from 3-D plant mock-ups Eric C a * ,HervéS  b a Forest ... alternating inter-row dis- tances of 0.75 m and 1.5 m, and a within row spacing of 0.9 m, to yield a planting density of 1...

Ngày tải lên: 07/08/2014, 16:21

... (2005) 403412 â INRA, EDP Sciences, 2005 DOI: 10.1051/forest:2005036 Original article Genetic control of adventitious rooting on stem cuttings in two Pinus elliottii ì P. caribaea hybrid families Mervyn ... shown to be effective in maintaining juvenile rooting responses in operational hedges of P. elliottii ì P. caribaea hybrids till at least age 3...

Ngày tải lên: 08/08/2014, 00:22

... carried out in the morning between 07 00 and 12 00 h in the forest understorey and between 07 00 and 10 00 h in the clearing to avoid a mid-day stomatal closure. During the A-PPFD responses, the mean ... structure and functional leaf traits in the tropical forest tree Dicorynia guianensis Amshoff (Caesalpiniaceae) Jean Christophe ROGGY a *...

Ngày tải lên: 08/08/2014, 00:22

... 2005 DOI: 10.1051 /forest: 2005082 Original article A comparison of two modelling studies of environmental effects on forest carbon stocks across Europe Ronnie MILNE*, Marcel VAN OIJEN Centre for Ecology ... deposition in EFM that Figure 11. Simulation results from the Edinburgh Forest Model: Carbon stocks at 22 sites. Effects of changes in [CO 2 ], climate...

Ngày tải lên: 08/08/2014, 00:22

... s.e.) of seeds per tree for potential (= (no. of filled seeds + no. of damaged seeds) ì germination rate ì no. of serotinous cones) and realised seed crop (= no. of filled seeds ì ger- mination ... = (no. of filled seeds + no. of damaged seeds) ì germination rate ì no. of serotinous cones; 2. realised seed crop = no. of filled seeds × germination rate × no...

Ngày tải lên: 08/08/2014, 01:21

... 327335 â INRA, EDP Sciences, 2004 DOI: 10.1051/forest:2004026 Original article A flexible radial increment model for individual trees in pure even-aged stands Christine DELEUZE a *, Olivier PAIN a , ... various individual growth models for trees in pure and even-aged stands, a generic model with a form parameter according to each species is proposed. With a f...

Ngày tải lên: 08/08/2014, 01:21

... h i ). Stem lateral surface area (A) is calculated as the sum of each log lateral area and the lateral area of the cone formed by tree tip: . 2 wG ⋅= π () ii ii i hh GG v −⋅ + = + + 1 1 2 () ntree n n i i hh G vV ... dell'Appennino Pistoiese, in Atti del seminario funzionalità del sistema faggeta, Accademia Ita- liana di Scienze Forestali, 1995, pp. 309–318. [6] Carey E., Sala A....

Ngày tải lên: 08/08/2014, 01:22

... 609 Ann. For. Sci. 61 (2004) 609615 â INRA, EDP Sciences, 2004 DOI: 10.1051/forest:2004064 Original article A comparison of fitting techniques for ponderosa pine height-age models in British ... 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 cannot be algebr...

Ngày tải lên: 08/08/2014, 01:22

... part of a larger project aimed at modeling growth of pure even-aged stands of common beech, on the basis of a network of permanent plots observed since the turn of the ... generalization of Eichhorn’s rule The data analysis of the 3 previous sec- tions provides a model for the 3 compo- nents of productivity in even-aged beech...

Ngày tải lên: 08/08/2014, 18:21

... horizontal irradiance, the amount of intercepted radiation is many times great- er in the spherical radiation field. In a direct radiation field, the amount of inter- cepted radiation, ... A comparison of the photosynthetic radiation response of Scots pine shoots in direct and diffuse radiation P. Oker-Blom 1 H. Smolander...

Ngày tải lên: 09/08/2014, 04:20

... A model of light interception and carbon balance for a sweet chestnut coppice (Castanea sativa Mill.) L. Mordacq B. Saugier Laboratoire ... 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 heterogeneous ... phot...

Ngày tải lên: 09/08/2014, 04:20