Báo cáo lâm nghiệp: "Oaks in a 2 high-CO world" potx

... results of phenological monitoring of the tree layer in a mixed stand in the region of the Drahanská vrchovina Upland in 2004–2007. e onset and duration of particular phenological stages are ... can also occur. Phenological data are a certain expression of the climate character of a given region. us, they can contribute to assess the...

Ngày tải lên: 07/08/2014, 03:22

... 2/0045/08, and by the Slovak Research and Development Agency, Contract No. APVV-0102-06. Changes in air quality in different phases of forest management process in a sub-mountain beech ecosystem (West ... ecosystem (West Carpathian Mts.) D. K Institute of Forest Ecology, Slovak Academy of Sciences, Zvolen, Slovakia ABSTRACT: We studied ai...

Ngày tải lên: 07/08/2014, 03:22

... 0002070201. In uence of a planting hole application of dolomitic limestone powder and basalt grit on the growth of Carpathian birch (Betula carpatica W. et K.) and soil chemistry in the air-polluted Jizerské ... this variant. On the other hand, in the basalt and control treatments, the foliar Ca concentrations have...

Ngày tải lên: 07/08/2014, 10:22

... part of a larger project that examined patterns of below- and above-ground biomass in Eu- calyptus populnea woodland ecosystems along a rainfall gradient in northeast Australia [25]. Here, data ... 247 c  INRA, EDP Sciences, 2007 DOI: 10.1051/forest:2007002 Original article Evaluation of a semi-empirical model for predicting fine root biomass in composit...

Ngày tải lên: 07/08/2014, 16:20

... plot basal area under cork; g max : maximum basal area under cork; g dom : domi- nant basal area under cork; apb: area proportional to tree basal area; BAL: mean basal area of the trees larger than ith ... variance associated with increasing classes of canopy cover, basal area and mean squared diam- eter and decreasing classes of stand density. This indicates that within plot tree variabil...

Ngày tải lên: 07/08/2014, 16:20

... three ecological zones: a small valley, a plateau and a regular intermediate slope. The plateau is covered by a well drained soil and composed of sand and slit. The small valley is characterized ... compounds in a mixed oak stand: strong species and spatial differentiation in whisky-lactone content Andrei P a ,AlexisD b ,RémyJ.P b , Géra...

Ngày tải lên: 07/08/2014, 16:20

... and SG-ratio tested depending on thinning intensities for radiata pine and maritime pine. Pinus radiata Pinus pinaster Intensity of First thinning Second thinning First thinning Second thinning thinning ... study was to calculate the accumu- lation and the export of nutrients over time in Pinus pinaster (maritime pine) and Pinus radiata (radiata pine) stands...

Ngày tải lên: 07/08/2014, 16:21

... 10.1051 /forest: 2005073 Original article Conversion of a natural broad-leafed evergreen forest into pure plantation forests in a subtropical area: Effects on carbon storage Guang-Shui CHEN a , Yu-Sheng ... xylocarpa plantation forest; CK, Castanopsis kawakamii plantation forest; NF, natural forest of C. kawakamii. The abbreviations are the sam...

Ngày tải lên: 08/08/2014, 00:22

... nitrification in non-nitrifying soil, although mineralisation increased. Finally, Barg and Edmonds [4] found no change in mineralisation and nitrification rates after partial or total clear- cut, as ... containing an anion resin bag and six cylinders containing a cation resin bag were set up. Finally, at the beginning of October 1996, the quantity of resin in each cy...

Ngày tải lên: 08/08/2014, 01:21

... saturation was calculated as the ratio between the sum of extractable amount of base cations and the total cation exchange capacity of a soil sample. Macronutrients in temperate forest trees 493 Figure ... article Macronutrients in tree stems and foliage: a comparative study of six temperate forest species planted at the same sites Anna...

Ngày tải lên: 08/08/2014, 01:22

... in relation to the possible origin of the variability in fungal growth and virulence, and to practical use of fungal growth on malt agar and in the phloem for screening and comparing the virulence ... growth and virulence of Leptographium wingfieldii Morelet, a fungus associated with the bark beetle Tomicus piniperda L. Franỗois...

Ngày tải lên: 08/08/2014, 01:22

... scrub oak-palmetto com- munity containing two dominant oak species (Q myrtifolia and Q geminata) was increased 34% in elevated CO 2, and leaf respiration was reduced by 20 % ... of var- ious environmental influences on leaf area index. Awareness of the importance of leaf area dynamics will increase the value of data from seedling and sapling st...

Ngày tải lên: 08/08/2014, 18:21

... Original article Variation in the composition and content of ellagitannins in the heartwood of European oaks (Quercus robur and Q petraea). A comparison of two French forests and ... identification of nine of these 12 ellagitannins (fig 1). Purified samples of vescalagin, castalagin, grandinin and roburin A (kindly p...

Ngày tải lên: 08/08/2014, 18:21

... to compensate for plant C uptake (+ 52% ). Plant N concentration and C/ N ratio over the 22 -week growing period Original article Changes in carbon uptake and allocation patterns in ... elevated [CO 2 ], by -11 and +13% , respectively (table III). Drought increased plant C and N concen- trations in both CO 2 treatments. Carb...

Ngày tải lên: 08/08/2014, 18:21

... Comportement in vitro d’embryons zygotiques de chêne liège (Quercus suber L.) excisés à divers stades de leur développement M. El Maâtaoui H. Espagnac Laboratoire de Biologie ... culture d’embryons zygotiques de chêne liège, excisés plus ou moins précocement. Nous avons en effet, dans un précédent travail (El Maâtaoui et Espa-...

Ngày tải lên: 09/08/2014, 04:20