Báo cáo lâm nghiệp: "in pathways for carbon and nitrogen assimilation in spruce roots under mycorrhization" doc
... Changes in pathways for carbon and nitrogen assimilation in spruce roots under mycorrhization C. Namysl 1 F. Le Tacor M. Chalot 1 B. ... carbon for amino acid biosyn- thesis. Some enzyme markers associated with the pathways of nitrogen and carbon metabolism were examined in spruce ectomycorrhizae and in each ... partner (uninfected...
Ngày tải lên: 09/08/2014, 04:20
... Soil carbon mineralization potential and its effect on soil active organic carbon in evergreen broadleaved forest and Chinese fir plantation. Chinese Journal of Ecology, 26: 1918–1923. (in Chinese) W ... Mountain. Research of Forest Ecosystem, 4: 127–138. (in Chinese) Z C.P., O H. (2001): In uence of temperature and moisture on soil nitrogen mineralization under...
Ngày tải lên: 07/08/2014, 10:21
... scientific data increas- ing the sustainability of the participative forest management in the MSDR leading to higher incomes and benefits for the local populations and maintaining the forest’s multiple ... Assessing the growth of tropical rain forest trees: Issues for forest modelling and management, Ecol. Appl. 9 (1999) 981–997. [7] Curtis J.T., McIntosh R.P., An upland forest cont...
Ngày tải lên: 07/08/2014, 16:21
Báo cáo lâm nghiệp: "A method for describing and modelling of within-ring wood density distribution in clones of three coniferous species" ppt
... expected change in distribution of within-ring density for one sd increase in ring width is presented in Figure 3. 3.4. Differences among clones in within-ring density Fluctuations in growth rate and ... given in bold. λ 1 λ 2 λ 3 λ 4 759 Ann. For. Sci. 61 (2004) 759–769 © INRA, EDP Sciences, 2005 DOI: 10.1051/forest:2004072 Original article A method for describing and...
Ngày tải lên: 08/08/2014, 00:21
Báo cáo lâm nghiệp: "Analysis of snow accumulation and snow melting in a young mountain spruce and beech stand in the Orlické hory Mts., Czech Republic" pptx
... like in March, also in April practically all water from melting snow in ltrated to the underly- ing rock. Only 16 mm water in spruce and 17 mm in beech flowed out in the form of overland flow in ... to 67.5 cm in spruce, to 46.8 cm in beech and the snow water equivalent in the spruce stand was reduced to 275.1 mm and in the beech stand to 228.3 mm. In line...
Ngày tải lên: 07/08/2014, 04:20
Báo cáo lâm nghiệp: "Evaluation of squared timber and log products in the Hyrcanian Forests of Iran" doc
... divided into two categories: non- mechanized and mechanized logging systems. In non-mechanized logging systems, after cutting, felling and delimb- ing, the logs are cut using manual chainsaws into ... forest Mazandar forests Gilan forests 10 15 20 25 30 35 40 45 Golestan Forests Mazandaran Forests Gilan forests 0 5 10 15 20 25 30 35 40 45 Golestan Forests Mazandaran Forests Gilan for...
Ngày tải lên: 07/08/2014, 10:21
Báo cáo lâm nghiệp: "Influence of flooding on growth, nitrogen availability in soil, and nitrate reduction of young oak seedlings (Quercus robur L.)" docx
... availability in the soil. During flooding, amino acid contents in taproot of stressed seedlings remained high and similar to that of controls. This result indicated that flooded roots maintained amino ... Flooding stress in Quercus robur seedlings 599 Quercus seedlings grown on sand showed maintained nitrate reductase activity in roots and leaves in flooded and control pla...
Ngày tải lên: 08/08/2014, 00:22
Báo cáo lâm nghiệp:"Analysis of log shape and internal knots in twenty Maritime pine (Pinus pinaster Ait.) stems based on visual scanning and computer aided reconstruction" pptx
... published for Pinus pinaster Ait. Further studies and an increased sampling will allow the gathering of more comprehensive information to be used as a tool for optimising the industrial processing, ... measurements and stand structural information, Can. J. For. Res. 28 (1998) 1686–1696. [15] Mäkinen H., Colin F., Predicting the number, death, and self- pruning of branches in Scot...
Ngày tải lên: 08/08/2014, 01:21
Báo cáo lâm nghiệp:" Needle longevity, shoot growth and branching frequency in relation to site fertility and within-canopy light conditions in Pinus sylvestris" potx
... biomass investment in branches in low light. However, in our study, there was an increase in the fractional investment in needles with increasing Q int in the fertile site, and no effect of Q int in the ... growth, and branching frequency in response to seasonal average integrated quantum flux density (Q int ) were investigated in Pinus sylvestris L. in a fertile sit...
Ngày tải lên: 08/08/2014, 01:21
Báo cáo lâm nghiệp: "Influence of individual tree and stand attributes in stem straightness in Pinus pinaster Ait. stands" pps
... distribution and it is often used in reforestation. Twenty provenance regions of P. pinaster have been defined in Spain [4]. Pinus pinaster shows a general ten- dency for sinuosity in comparison ... straightness and site, and both individual and stand attributes were studied in Pinus pinaster Ait. stands. To this effect, 32 plots encompassing different densities and sites...
Ngày tải lên: 08/08/2014, 01:22