Báo cáo lâm nghiệp: "Sessile oak (Quercus petraea Liebl ) site index variations in relation to climate, topography and soil in even-aged high-forest stands in northern France" doc
Báo cáo lâm nghiệp: "Sessile oak (Quercus petraea Liebl.) site index variations in relation to climate, topography and soil in even-aged high-forest stands in northern France" doc
... petraea Liebl. ) site index variations in relation to climate, topography and soil in even-aged high-forest stands in northern France Laurent BERGÈS a *, Richard CHEVALIER a , Yann DUMAS a , Alain ... years), nearly pure, even-aged, closed, high-forest stands of oaks grown from seedlings. Stands were selected according to official information o...
Ngày tải lên: 08/08/2014, 00:22
Báo cáo lâm nghiệp: "Can understory vegetation accurately predict site index? A comparative study using floristic and abiotic indices in sessile oak (Quercus petraea Liebl.) stands in northern France" ppt
... Sessile oak (Quercus petraea Liebl. ) site index variations in relation to cli- mate, topography and soil in even-aged high-forest stands in nor- thern France, Ann. For. Sci. 62 (200 5) 391–402. [10] ... territory. The relationships between site index and ( 1) understory vegetation or ( 2) soil, topography and climate were studied u...
Ngày tải lên: 08/08/2014, 00:22
Báo cáo lâm nghiệp: "Holm oak (Quercus rotundifolia Lam.) and Aleppo pine (Pinus halepensis Mill.) response to different soil preparation techniques applied to forestation in abandoned farmland" pps
... for the annual increase in height and diameter in Aleppo pine (Pinus halepensis) and Holm oak (Quercus rotundifolia) recorded during the entire monitoring period (time in years). (* 0.05 > ... annual dead seedlings recorded during the study period (1996–200 0) for Aleppo pine (Pinus halepensis) and Holm oak (Quercus rotundifolia) in relation to time (in ye...
Ngày tải lên: 08/08/2014, 01:22
Báo cáo lâm nghiệp: " Sessile oak seedling fertilization and leaf mineral composition in western France" docx
... of N and Ca to adult stands. ii) A short-term objective was to investigate responses of young oak seedlings to mineral fertilization and to more accurately deter- mine their ... below that in experiment 1. INTRODUCTION Little research has been devoted to the min- eral demands of sessile oak (Quercus petraea Matuschka, Liebl) concernin...
Ngày tải lên: 08/08/2014, 18:21
Báo cáo lâm nghiệp: "Nutrition of silver fir (Abies alba Mill) growing at the upper limit of its occurrence in the Šumava National Park and Protected Landscape Area" pot
... groups 7K (acid soils in the 7 th altitudinal vegetation zone) and 8K (acid soils in the 8 th altitudinal vegetation zone). Fig. 3 and Fig. 4 show histograms for selected elements. In the higher ... stress elements in the cur- rent year needles of fir taken in 2006 and 2007 in the Bohemian Forest, in the mature stands growing predominantly above 1,100 m a.s.l. MATER...
Ngày tải lên: 07/08/2014, 10:21
Báo cáo lâm nghiệp: "Response of Douglas-fir leaf area index and litterfall dynamics to Swiss needle cast in north coastal Oregon, USA" ppt
... poorly with stand density index. In stands that are still building leaf area after a recent thinning, foliage litterfall rates should be lower, suggesting that the relationship between stand density and ... 42 (199 6) 282–289. [46] Poikolainen J., Kubin E., On the correlation between needle lit- terfall and defoliation in a Scots pine stand and in a norway spruce stand, in:...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Discrimination of coated carbide tools wear by the features extracted from parallel force and noise level" potx
... woodworking tools and its appli- cation to the in- process monitoring of wear, in: Proceedings of the 11th International Wood Machining Seminar, 1993, pp. 147–156. [8] Lemaster R., Tee L., Monitoring ... tools tested with cutting speed for the final cutting length. Figure 7. Linear relationships between noise level and parallel force of the tools investigated (in average) for 30, 40,...
Ngày tải lên: 08/08/2014, 01:22
Báo cáo lâm nghiệp: "Canonical correspondence analysis for forest site classification. A case study* " ppt
... state of the stands) ; iii) it helps in selecting the ecological variables that are relevant for site classification; iv) it can be used to define synthetic indexes of the ... CCA ordination axis (ie, the tro- phic gradient) using: i) the coordinates of the species as an index of their ecological optimum; and ii) the coordinates of the...
Ngày tải lên: 08/08/2014, 18:21
Báo cáo lâm nghiệp: "Diagnosing plant water status as a tool for quantifying water stress on a regional basis in Mediterranean drylands" pdf
... MPa in May (site H) and decreased to –1.2 MPa at sites H, D1 and D2 (September), and further to –1.7 MPa at site D3. For C. siliqua, Ψ min ranged between –1.8 MPa at site H and –3.0 MPa at site ... landscape degradation. Istanbul Bursa Izmir Antalya Adana Ankara Site H (Güzelçamli) Site D2 (Karine) Site D1 (Kuyuluk) Site D 3 (Mut) North a b c Figure 1. a) The two...
Ngày tải lên: 09/08/2014, 04:20
Báo cáo lâm nghiệp: "Influence of the moisture content of forest tree its response to different viability tests pollen on" pdf
... temperatures using a water bath (T 1) and an incubator (T 2). The 100% RH was created by saturating air in a closed container maintained at the incubator temperature T2. Germination ... fully understood but loss of membrane integrity may be involved (Shivanna and Heslop-Harrison, 198 1). ). Certainly, it is a principal factor in the...
Ngày tải lên: 09/08/2014, 04:20