Báo cáo lâm nghiệp: "Climatic significance of tree-ring width and intra-annual density fluctuations in Pinus pinea from a dry" pdf

... were higher in the inland area than in the coastal area (Tab. I). Val- ues of mean sensitivity and standard deviation were higher for latewood than for earlywood and tree-ring width at each area. In both ... temper- ature in August had a negative effect on latewood formation, in the coastal and inland area. Climatic significance of IADFs in Pinus pinea 233 Figu...

Ngày tải lên: 07/08/2014, 16:20

... C. alpina 0 1,150 C. alpina 0 1983 428 C. abietis/alpina 890 342 C. alpina 330 1,589 C. alpina 0 1984 181 C. abietis/alpina 1,042 296 C. alpina 430 1,368 C. alpina 0 1985 416 C. abietis/alpina ... Mountains (Poland) M. J Department of Forest Management in Mountain Regions, Forest Research Institute, Cracow, Poland ABSTRACT: is article presents a review of data and results of...

Ngày tải lên: 07/08/2014, 03:22

... americana F. americana, C. caroliniana High shrub density and U. americana Basal area a 21 m 2 /ha 16 m 2 /ha Density a 6500 stems/ha 6100 stems/ha Canopy height 11 m 12 m Origin b 1962 1962 Preparation ... establishment of advanced natural regeneration prior to harvesting in fire adapted oak stands [21], and in the boreal forest as an alternative to clear- cutting [20]. In...

Ngày tải lên: 07/08/2014, 16:20

... diversity (Shannon index) Uncut areaaaaaaaaaaaa Clear-cut area – b bc c cd cd de de de e a Evenness Uncut area ab ab ab ab ab ab ab ab ab ab ab Clear-cut area – c cd d cde cd e a a a b Figure 3. ... after thinning. Diversity decreased from 1994 to obtain in 2003 the same diversity than in the uncut area, and evenness has been the same as in the uncut area since 2000, showing...

Ngày tải lên: 08/08/2014, 00:22

... ATP-Tris. The reaction was carried out at 23°C for 10 min with 10-40 gg of membrane protein in a final volume of 600 pl. PPase activity was measured in a standard reaction mixture ... partial contamination by plasma membranes. Vanadate and nitrate have similar effects on ATPase and H+ -pumping (Figs. 1 and 2). Thus the H+-pumping observ...

Ngày tải lên: 09/08/2014, 04:20

... 111, 683-692 Khalid A. , Boukroute A. , Botton B. & Martin F. (1988) The aspartate aminotransferase of the ectomycorrhizal fungus Cenococcum geophi- lum: purification and molecular properties. Plant ... fungus and the cortical region including host cells and fungal hyphae revealed identical isoforms, while no activity was found in the peri- phe...

Ngày tải lên: 09/08/2014, 04:20

... Picea abies stand (Pa 73) and the two Abies alba (Aa) stands (Aa 05 and Aa 73). 2.4. Response function analysis For each ring component, the effect of climate on growth was in- vestigated in two ... evapotranspiration; and (iv) rainfall interception [23]. A de- tailed parameterization was made at each sampled site according to the data presented in Table I. The length of the...

Ngày tải lên: 07/08/2014, 16:21

... the explanatory (physiographic, climatic and site preparation variables) and response (time to divergence) variables used in the multivariate analysis. Variable No. Abbreviation of variable Description ... distribution and abun- dance (measured as percentage cover), with abundance gen- erally decreasing with increasing altitude. Van Heerden and Mason [32] showed that at the Usutu...

Ngày tải lên: 07/08/2014, 16:21

... free Ca 2+ concentration was calculated by maxchelator and Fabiato and Fabiato’s computer program [44,45]. The Ca 2+ -binding curves and binding parameters were fitted and calculated using graphpad ... the Ca 2+ -binding properties of TG2 and its mutants and the role of five Ca 2+ - binding sites in the regulation of transglutaminase and GTPase activities, as well as the b...

Ngày tải lên: 16/03/2014, 03:20

Ngày tải lên: 07/08/2014, 03:22