Báo cáo lâm nghiệp: "Biomass, litterfall and nutrient content in Castanea sativa coppice stands of southern Europe" ppt

Báo cáo lâm nghiệp: "Biomass, litterfall and nutrient content in Castanea sativa coppice stands of southern Europe" ppt

Báo cáo lâm nghiệp: "Biomass, litterfall and nutrient content in Castanea sativa coppice stands of southern Europe" ppt

... 99.6 Mg ha-1 ; San Original article Biomass, litterfall and nutrient content in Castanea sativa coppice stands of southern Europe S Leonardi 1 I Santa Regina M Rapp 4 HA Gallego 3 M ... VII. This indicates again that there was much higher calcium content in the litterfall in the Etna Castanea sativa stands as compared to the San Mar...
Ngày tải lên : 08/08/2014, 18:21
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Báo cáo lâm nghiệp: "Soil environment and nutrient status of Norway spruce (Picea abies [L.] Karst.) underplantings in conditions of the 8th FAZ in the Hrubý Jeseník Mts" potx

Báo cáo lâm nghiệp: "Soil environment and nutrient status of Norway spruce (Picea abies [L.] Karst.) underplantings in conditions of the 8th FAZ in the Hrubý Jeseník Mts" potx

... 149 derplantings increases with a decreasing content of these nutrients in needles. An opposite correlation was determined for aluminium: with an increasing proportion of this element in nutrition ... diminishing proportion of C ox in Ae/Ep horizons the content of basic nutrients decreases there (Fig.3).  e proportion of humus substances (C ox ) in the organomin...
Ngày tải lên : 07/08/2014, 10:21
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Báo cáo lâm nghiệp: "Biomass increment and carbon balance of ash (Fraxinus excelsior) trees in an experimental stand in northeastern France" docx

Báo cáo lâm nghiệp: "Biomass increment and carbon balance of ash (Fraxinus excelsior) trees in an experimental stand in northeastern France" docx

... by hand only partially, and then, remaining leaves had to be collected in a net enclosing the crown as and when they were naturally falling until the end of leaf fall (DOY 306 and 296 in 1994 and ... the end of the growing season in 1994 to the end of the next one in 1995. In 1995, three trees of variable competitive status and aged 25 were studied. Stem, branch a...
Ngày tải lên : 08/08/2014, 01:22
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Báo cáo lâm nghiệp: "Tree density and site quality influence on Pinus halepensis Mill. reproductive characteristics after large fires" pdf

Báo cáo lâm nghiệp: "Tree density and site quality influence on Pinus halepensis Mill. reproductive characteristics after large fires" pdf

... Spain (Fig. 1). Two of these fires occurred in the provinces of Barcelona and Tarragona (NE Spain), where 50 000 ha and 12 500 ha were burned, respectively, and the other two in the provinces of ... provinces of Albacete and Murcia (SE Spain), where 14 000 and 30 000 ha were burned. In all of these areas, natural regen- eration resulted in high-density stands of...
Ngày tải lên : 07/08/2014, 16:21
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Báo cáo lâm nghiệp: " Nutritive stress and cytokinin status in Norway spruce seedlings (Picea abies L. Karst.)" ppsx

Báo cáo lâm nghiệp: " Nutritive stress and cytokinin status in Norway spruce seedlings (Picea abies L. Karst.)" ppsx

... the cytokinin content in the shoot. In discussing the elevated content of cytokinin ribosides in shoots of seedlings grown on STRESS-AlCl 3 – and STRESS- NAA-medium, we assume that the increased ... 2A and 2B it is obvious that in almost all shoot samples the content of isopentenyladenosine is higher than the content of the zeatin riboside. Comparing the content...
Ngày tải lên : 08/08/2014, 00:22
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Báo cáo lâm nghiệp: "Physiological, morphological and growth responses to rhizosphere hypoxia by seedlings of North American bottomland oaks" potx

Báo cáo lâm nghiệp: "Physiological, morphological and growth responses to rhizosphere hypoxia by seedlings of North American bottomland oaks" potx

... plants growing in saturated soil is often ascribed to of seedlings established in hypoxic nutrient solution. Seedlings established in normoxic nutrient solution grew 131 % larger in ... RL (1981) Flood tolerance and related characteristics of trees of the bottomland forests of the southern United States. In: Wetlands of Bottomland Hard...
Ngày tải lên : 08/08/2014, 18:21
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Báo cáo lâm nghiệp: "Geographic variation and bud dormancy in seedlings (Fagus sylvatica L)" potx

Báo cáo lâm nghiệp: "Geographic variation and bud dormancy in seedlings (Fagus sylvatica L)" potx

... and turf and 50% sand; they were then maintained in the nursery, with a plant density of 30 plants/m 2, in Florence, during the winter and the following growing season. ... sprouting in F sylvatica seedlings in spring also depended upon prior chilling received. Fa- lusi and Calamassi (1990), also working with seedlings, found that chillin...
Ngày tải lên : 08/08/2014, 18:21
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Báo cáo lâm nghiệp: "Water movement and its resistance in young trees of Cryptomeria japonica" pot

Báo cáo lâm nghiệp: "Water movement and its resistance in young trees of Cryptomeria japonica" pot

... University, Fukuoka, Japan Introduction Information about water flow resistance is essential to understanding and simulating water movement in trees (Yahata, 1987). There are a number of papers ... long and to find a simple equation to predict the effect of stem form on it. Materials and Methods 14 yr old C. japonica trees growing in a plan...
Ngày tải lên : 09/08/2014, 04:20
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Báo cáo lâm nghiệp: "Light-quality and -quantity effects on monoterpene-mediated photo-bleaching of conifer needles" pot

Báo cáo lâm nghiệp: "Light-quality and -quantity effects on monoterpene-mediated photo-bleaching of conifer needles" pot

... the seedlings had been cultivated in groups of 50 on a 3:1 mixture of quartzsand and vermiculite irrigated with tap water. Cultivation took place in glass vessels in continuous ... products of secondary metabolism in conifers, could play a role in forest decline. Monoterpenes are synthesized in leuco- plasts at the basis of needles and...
Ngày tải lên : 09/08/2014, 04:20
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Báo cáo lâm nghiệp: "The root-plant ratio changes in the first growing periods of wild cherry (Prunus avium L.) plantations" pptx

Báo cáo lâm nghiệp: "The root-plant ratio changes in the first growing periods of wild cherry (Prunus avium L.) plantations" pptx

... interpretation of the data is that the efficiency of root system in terms of plant growth remains stable at least in that first growing period of plant in the forest disregarding their functions of conduction ... explaining 92% of the relationship. An adequate proportion of fine roots (thinner than 2 mm) in the root system is another important parameter of planting s...
Ngày tải lên : 07/08/2014, 03:22
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