Báo cáo lâm nghiệp:"Stand history and its consequences for the present and future dynamic in two silver fir (Abies alba Mill.) stands in the high Pesio Valley (Piedmont, Italy)" potx

... R 6 R R R – removal cut; P – preparatory cut J. FOR. SCI., 57, 2011 (6): 271–277 271 Harvest scheduling with spatial aggregation for two and three strip cut system under shelterwood management M. ... adjacent strips within the re- generation period of 30 years. e three- cut shelterwood system consists of a pre- paratory, establishment, and removal cut....

Ngày tải lên: 07/08/2014, 10:21

... intensity of Melampsora larici-populina occurrence and the value of growth traits and biomass yield in Populus nigra  e correlation between the growth traits of stem diameter and plant height and ... some clones (clones 7 and 107) no yield decline was observed at all or it ranged only from 6% to 9% (clones 49 and 152). It is to note that clone 107...

Ngày tải lên: 07/08/2014, 10:21

... 381 JOURNAL OF FOREST SCIENCE, 56, 2010 (9): 381–388 Nutrition of silver fir (Abies alba Mill) growing at the upper limit of its occurrence in the Šumava National Park and Protected Landscape Area R. ... During the period 2006–2007, in the Czech part of the Bohemian Forest, samples of silver fir were taken mainly in the upper...

Ngày tải lên: 07/08/2014, 10:21

... addition, these variables should be of easy measurement and understanding, and should Stand growth model using volume increment/basal area ratios G. J. M P 1 , J. M. C 2 , M. V. ... estimate growths using biometric models previously developed. e growth values of each plot during the last twenty years were calculated to fit the model, using the ratio of...

Ngày tải lên: 07/08/2014, 10:21

... the distance when the blocks were on the borderline. e distance was measured using the laser telemeter with half -a- meter scale. e diameter was calculated and compared with the control measure ... of the diameter at various heights of stem using the wedge prism as a tool for measurement is a sufficiently accurate method for measurement and can be used for m...

Ngày tải lên: 07/08/2014, 10:21

... granite. Supported by the Ministry of Agriculture of the Czech Republic, Project No. MZe 0002070201. Growth and health state of silver fir (Abies alba Mill.) in the ridge area of the Jizerské hory Mts. V. ... dynamics of the height growth of the silver fir experimental plantings was evaluated on the basis of the results of the measu...

Ngày tải lên: 07/08/2014, 10:22

... 10.1051/forest:2006027 Original article Germination after heat treatments of Pinus tropicalis Morelet and Pinus caribaea Morelet var. caribaea seeds of west Cuban forests Jorge D L H a * ,MartaB  b , ... a Figure 1. Average cumulate rate of germination for replicates of 50 seeds of Pinus tropicalis and P. caribaea var. caribaea...

Ngày tải lên: 07/08/2014, 16:20

... Available online at: c  INRA, EDP Sciences, 2007 www.afs-journal.org DOI: 10.1051/forest:2007021 Original article Effects of resource availability on condensed tannins and nitrogen in two Quercus species ... radiation), at two water regimes (500 and 800 mm) and with two nutrient availabilities (standard substrate and 7% increase in soil N). The concentratio...

Ngày tải lên: 07/08/2014, 16:21

... 10.1051/forest:2007026 Original article Stand biometry and leaf area distribution in an old olive grove at Andria, southern Italy Jan ˇ C ´  a * ,JanG  ˇ  ´  a , Francesca D L b ,HamlynG.J c a Institute ... general biometry data for an 80-year -old olive (Olea europea L., cv. Coratina) grove in Andria, southern Italy, and (2) t...

Ngày tải lên: 07/08/2014, 16:21

... 10.1051/forest:2007069 Original article Stand structure, competition and growth of Scots pine (Pinus sylvestris L.) in a Mediterranean mountainous environment Antonio Garc ´ ia-Abril,SusanaMartin-Fern ´ andez,M.AngelesGrande,JoseA.Manzanera * Technical ... diameter and basal area growth of Scots pine in the uneven-aged stand than in the even-aged st...

Ngày tải lên: 07/08/2014, 16:21

... 6371 â INRA, EDP Sciences, 2006 DOI: 10.1051/forest:2005098 Original article Short-term effects of fire on plant cover and soil conditions in two Austrocedrus chilensis (cypress) forests in Patagonia, ... changes in understory and overstory, and in the patterns of soil temperature and moisture in burned cypress forests of Patagonia. Once...

Ngày tải lên: 08/08/2014, 00:22

... article Classifying xylophone bar materials by perceptual, signal processing and wood anatomy analysis Loïc BRANCHERIAU a *, Henri BAILLÈRES a , Pierre DÉTIENNE a , Richard KRONLAND b , Bloen METZGER b a ... twice/cm by marginal parenchyma bands in Swietenia, 15 times by bands in Hymenolobium, while in the woods with poor acoustics the tissues were disrupted 35–50 tim...

Ngày tải lên: 08/08/2014, 00:22

... 2003 DOI: 10.1051/forest:2003027 Original article Stand history and its consequences for the present and future dynamic in two silver fir (Abies alba Mill.) stands in the high Pesio Valley (Piedmont, ... RESULTS 3.1. Past land and forest use The forestry history of the high Pesio valley and the land- use of the territory...

Ngày tải lên: 08/08/2014, 01:21

... 10.1051/forest:2003072 Original article Impact of population dynamics of white mistletoe (Viscum album ssp. abietis) on European silver fir (Abies alba) Konrad Philipp NOETZLI*, Beat MÜLLER, Thomas ... stand of European silver fir (Abies alba) in the Rhine Valley (Canton of Grisons, Switzerland), 27 trees with heavy infestation of white mis...

Ngày tải lên: 08/08/2014, 01:21

... after a 2 wk adaptation period as the slope of C0 2 concentration over time in the whole chamber (Gaudillere and Mousseau, 1989). During the two 1 st 2 wk, the C0 2 concentration ... where environmental conditions were controlled (22 /15°C day-night, 15 h photoperiod, 50% RH). Whole plant photo- synthesis at 25 0 jlmol-m- 2 s- 1 PPFD...

Ngày tải lên: 09/08/2014, 04:20