Báo cáo lâm nghiệp: "Shoot development and dieback in progenies of Nothofagus obliqua" pptx

... (Special Issue): 74–81 Neuroptera, Raphidioptera and Mecoptera assemblages inhabiting young spruce (Picea abies) forests: dominance structure and seasonal activity patterns Ľ. V 1 , J. ... Neuroptera, Raphidioptera a Mecoptera mladých smrkových (Picea abies) lesů: struktura dominance a sezonní aktivita ABSTRAKT: Síťokřídlý hmyz (Neuroptera,...

Ngày tải lên: 07/08/2014, 03:22

... dominant stand and the volume of dead trees is not included in the calculation. Stand density was calcu- lated according to standard mensurational practice from the ratio of actual basal area ... is the 6 th report on the production potential and stability of mixed forest stands in uplands. A mixed beech/larch stand that was established by...

Ngày tải lên: 07/08/2014, 03:22

... moder in the unmixed spruce stand and mixed stands, mull-moder in the unmixed beech stand (according to N et al. 2001). The high accumulation of humus in H horizon in the mixed stand of ... floor occurs in the stand of larch with beech (52.6 t/ha) and the statistically lowest one in the unmixed beech stand (22.0 t/ha). e mixed s...

Ngày tải lên: 07/08/2014, 03:22

... Supported by the Ministry of Education, Youth and Sports of the Czech Republic, Project No. MSM 6215648902. Occurrence, biology and harmfulness of Galerucella lineola (F.) (Coleoptera, Chrysomelidae) ... or at the end of April and at the beginning of May (H, Fig. 1. A female of the alder biological form of Galerucella lineola Fig. 2. e body...

Ngày tải lên: 07/08/2014, 03:22

... Nor- way spruce (Picea abies [L.] Karst.) underplantings in the Hrubý Jeseník Mts. In the area concerned 19 research plots were established, representing the ridge sites of the 8 th FAZ of acid ... growth and development of Norway spruce plantings in the ridge part of the Hrubý Jeseník Mts. Keywords: Norway spruce; nutrient defi...

Ngày tải lên: 07/08/2014, 10:21

... variability of xylem cell formation in the last tree ring does not aff ect the function of xylem tissues as a whole considerably.  e conducting phloem of Pinaceae consists of living, mature ... 8.0 Old stand 36.9 35.3 20.1 226 J. FOR. SCI., 57, 2011 (5): 226–232 JOURNAL OF FOREST SCIENCE, 57, 2011 (5): 226–232 Preliminary study on phloemogenesis in Norway spruce:...

Ngày tải lên: 07/08/2014, 10:21

... 10.1051/forest:2007005 Original article Growth, allocation and leaf gas exchanges of hybrid poplar plants in their establishment phase on previously forested sites: effect of different vegetation management ... biomass allocation and leaf carbon assimilation was investigated in two plantations (1- and 2-year-old) established in previously f...

Ngày tải lên: 07/08/2014, 16:20

... death involves two components: the abscission of the terminal bud and the desiccation of dis- tal nodes and internodes (dieback) . The natural abscission of a shoot’s terminal bud means the death of ... developed in one growing season) and the development, in the following years, of annual shoots consisting of two or three growth units (GU; defined as an axis segment res...

Ngày tải lên: 07/08/2014, 16:21

... 10.1051/forest:2005031 Original article Genetic structure and phylogeography of pine shoot beetle populations (Tomicus destruens and T. piniperda, Coleoptera Scolytidae) in Italy Massimo FACCOLI*, ... sibling species of pine shoot beetle, Tomicus destruens and Tomicus piniperda, differ strongly in relation to the genetic structure of their...

Ngày tải lên: 08/08/2014, 00:22

... results are in accordance with the vertical distribution of different ex- ploration types in the organic layer and the mineral soil in a young spruce stand of the Bavarian limestone Alps [8]. Con- tact ... vertical distribution in soil horizons, and ex- ploration types of ectomycorrhizae in a young, planted Norway spruce (Picea abies [L.] Ka...

Ngày tải lên: 08/08/2014, 00:22

... (2003) 527537 â INRA, EDP Sciences, 2003 DOI: 10.1051/forest:2003046 Original article Shoot growth and phenology modelling of grafted Stone pine (Pinus pinea L.) in Inner Spain Sven MUTKE, Javier ... were consistent with observations in mature non -grafted stone pines. stone pine (Pinus pinea) / growth and flowering phenology / phenology mode...

Ngày tải lên: 08/08/2014, 01:21

... was ineffective so the imazapyr actually controlled the competing vegetation. Vegetation control and fertilization in Pinus taeda 623 four, respectively (Tab. II and Fig. 4). The range in pine ... fertilization applied singly or in combination is a necessary step in understanding the primary resource limitation to pine growth. In the past, there has been...

Ngày tải lên: 08/08/2014, 01:21

... species has traits allowing a fast rees- tablishment [47, 48]. Fire behaviour models offer an objective basis to evaluate, select and plan stand and fuel management practices aimed at safeguarding ... 537544 â INRA, EDP Sciences, 2004 DOI: 10.1051/forest:2004048 Original article Fire behaviour and severity in a maritime pine stand under differing fuel conditi...

Ngày tải lên: 08/08/2014, 01:22

... reported to define some anatom- ical features of pointer years. An automatic image analysis system was used to examine anatomical features in pointer years and a new method ... precipitation on ring width. Figure 7 shows the comparison between pointer years in the mean residual curve Original article Pointer years and growth in T...

Ngày tải lên: 08/08/2014, 18:21

... pp. 177–222. 516 I. Vande Walle et al. Original article The above- and belowground carbon pools of two mixed deciduous forest stands located in East-Flanders (Belgium) Inge Vande Walle a,* , Sylvie ... I). The main tree species, being oak and beech Carbon pools in two deciduous forest stands 513 Table IV. Contribution of the main tree species in...

Ngày tải lên: 09/08/2014, 04:20