Báo cáo lâm nghiệp: "Multifunctional forestry practices as a land use strategy to meet increasing private and public demands in modern societies" ppt

... were observed mainly in regions exposed to the heavy deposition e effect of point application of fertilizers on the soil environment of spread line windrows in the Krušné hory Mts. D. V 1 , ... scarification the top -soil horizons were moved into line windrows, which caused marked degradation of the soil environment. e present revita...

Ngày tải lên: 07/08/2014, 03:22

... past Multifunctional forestry practices as a land use strategy to meet increasing private and public demands in modern societies F. S Zurich, Switzerland ABSTRACT: e present distribution ... it has integrated increasing societal de- mands into current management practices. To assess the present and future options in management of forests,...

Ngày tải lên: 07/08/2014, 03:22

... variables, the stratification of the crown and the deletion of segments. In the present study, the effects of the choice of the auxiliary variable and of the created crown structure (segments and nodes, ... dele- tion of the stem segments. After this closer look at the old pine, the effect of stratification and deletion of the stem seg...

Ngày tải lên: 07/08/2014, 03:22

... 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

... discusses possibilities of using the portable falling weight deflectometer to measure the bearing capacity and compaction of forest soils. Within the study, measurements were made using manual ... available to root hairs and pores under 0.001 mm are not inhabitable even by micro - Possibilities of using the portable falling weight deflecto...

Ngày tải lên: 07/08/2014, 10:21

... no data on water relations and mineral nutrition is available for infected oaks under field conditions. The knowledge about the effects of Phytophthoras on mature oaks under natural conditions ... analysis of the effects of air pol- lution on forests, 4th ed., United Nations Economic Commission Impact of P. quercina on mature oaks 671 for Europe Convention on Lon...

Ngày tải lên: 07/08/2014, 16:20

... to the fact that we have only investigated the back-crossing behaviour of a single Q. petraea ì Q. robur F1-hybrid, and compared it to a single tree of Q. robur and Q. petraea, respectively. Studies ... that the formation of Q. petraea ì Q. robur F1-hybrids is subject to substantial barriers (narrow arrows), but suggest that this rarely formed Q. petraea...

Ngày tải lên: 07/08/2014, 16:20

... (+)-3-carene:terpinolene (+)-α-pinene: (-)-β-pinene: (+)-3-carene:terpinolene (+)-α-pinene: (-)-β-pinene: (+)-3-carene:terpinolene (+)-α-pinene: (-)-β-pinene: (+)-3-carene:terpinolene (+)-α-pinene: (-)-β-pinene: ... SE eggs/female 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 (+)-α-pinene (-)-β-pinene (+)-3-carene Terpinolene (+)-α-pinene: (-)-β-pinene: (+)-3-carene:terpinolene (+)-α-pinene: (-)-β-pine...

Ngày tải lên: 07/08/2014, 16:20

... 10.1051/forest:2006104 Original article Growth versus storage: responses of Mediterranean oak seedlings to changes in nutrient and water availabilities Virginia S P ´  a * , Pilar C  D ´  a , Fernando ... was to assess the combined response of growth, carbohydrate and nitrogen reserves of seedlings of three Mediterranean oaks (Quercus coc...

Ngày tải lên: 07/08/2014, 16:20

... 10.1051/forest:2007061 Original article Genetic variation of Tunisian Myrtus communis L. (Myrtaceae) populations assessed by isozymes and RAPDs Chokri Messaoud a ,MakremAfif a , Abdennacer Boulila a , ... the Nei and Li’s similarity coefficient [38]: S xy = 2m xy /(m x + m y ), where m xy is the number of bands shared by samples x and y,andm x and m y are the...

Ngày tải lên: 07/08/2014, 16:21

... then be considered as a potential and optional candidate for maintaining the habitat diversity of SDT and CWD. An integrated forest management could then Snags in ancient forests of French Alps ... 135142 â INRA, EDP Sciences, 2005 DOI: 10.1051/forest:2005005 Original article The management of snags: A comparison in managed and unmanaged ancient f...

Ngày tải lên: 08/08/2014, 00:21

... on the diameter growth of Norway spruce and aspen in mixed stands: a case study from the southern Russian taiga Fyodor TATARINOV a, b,c *, Yury BOCHKAREV d , Alexander OLTCHEV a, e , Nadezhda ... Stand seasonal growth pattern in 2000 Seasonal increment of basal area in spruce represented over 80% of the entire stand basal area increment (a...

Ngày tải lên: 08/08/2014, 00:22

... frontières de l’écogramme de l’es- pèce. Une étude effectuée au sujet de deux types de pin ponde- rosa de montagne et de milieux xériques suggère à partir d’es- sais de plantation que de nombreux ... I. Parallèlement à l’analyse génétique, la croissance et le nombre de cernes d’aubier des deux types de plaine et d’al- titude ont été mesurés à partir...

Ngày tải lên: 08/08/2014, 00:22

... Succession from bog pine to Norway spruce stands 351 Table I. Vegetation tabular of the phytocoenotic relevés and their synusial relevés in the bog pine stand of phytocoenosis No 1 and in the bog pine ... A., Schweingruber F.H., Gobat J M., Stand structure, invasion, and growth dynamics of bog pine (Pinus uncinata var. rotundata) in relation to pe...

Ngày tải lên: 08/08/2014, 01:21

... comprise a thinning regime are described, that is the thinning type, the intensity of thinning, the thinning cycle, the thinning yield and the timing of thinning. The control ... about the age of first thinning, the type of thinning, the intensity of thinning, the thinning cycle, the thinning yield and the age at which thinning should...

Ngày tải lên: 09/08/2014, 06:22