Báo cáo lâm nghiệp:"Inter-regional variability in site index models for even-aged stands of stone pine (Pinus pinea L ) in Spain" potx

... of all the trees in the plot was measured, while total Figure 1. Site index curves for Pinus pinea L. published in Spain. Inter-regional site index variability 261 height was only collected for ... 5. Interregional site index curves for Pinus pinea L. in Spain. Inter-regional site index variability 263 Equality of both models is tested by considerin...

Ngày tải lên: 08/08/2014, 01:21

... the self-thinning limit (figure 3). The influence of site quality on the intercept of the self-thinning line was examined by adding the site index to the model as an independent variable. The following ... for Scots pine stands using individual-tree growth models, Silva Fennica 29 (199 5) 225–246. [13] Lonsdale W.M., The self-thinning rule: dead or alive?, Ecology 71 (19...

Ngày tải lên: 08/08/2014, 01:21

... dd 0.1 dd 0.5 dd 0.9 527 Ann. For. Sci. 60 (200 3) 527–537 © INRA, EDP Sciences, 2003 DOI: 10.1051/forest:2003046 Original article Shoot growth and phenology modelling of grafted Stone pine (Pinus pinea L. ) in Inner Spain Sven ... values by individual regression models of relative shoot (a) and cone growth (b). Growth and phenology modelling of Stone pine 531...

Ngày tải lên: 08/08/2014, 01:21

... Esperienze sull’innesto all’aperto del pino domestico (Pinus pinea L. ). Firenze, pp. 20 Owens J.N. & Molder M. (198 4) The re- productive cycle of Lodgepole pine. Information Service ... separates the female gametophyte into many small cells. In April, the archegonia appear at the nucellar end of the gametophyte, with the egg cell w...

Ngày tải lên: 09/08/2014, 04:20

... pollen supply is insufficient [44]. Pollen avail- ability in TUS (where some old trees were left standing after fire) could explain the high values obtained for a dry ombro- climate. The germination ... seedling performance of two Mediterranean tree species, holm oak (Quer cus ilex L. ) and Aleppo pine (Pinus halepensis Mill .): a multifactor ex- perimental approach, Plant Eco...

Ngày tải lên: 07/08/2014, 16:21

... (200 1) 395–406. [8] Calama R., Cañadas N., Montero G., Inter-regional variability in site index models for even-aged stands of stone pine (Pinus pinea L. ) in Spain, Ann. For. Sci. 60 (200 3) 259–269. ... categorical data / Pinus pinea L. Résumé – Site index en relation avec les variables du sol pour les peuplements de pin pignon (Pinus...

Ngày tải lên: 08/08/2014, 00:21

... were followed in the intercellular washing fluid (IWF) and in the residual cell material (RCM). The plants treated in summer remained 12 wk longer in the chambers in order to assess ... understanding of gaseous air pollu- tants and leaf cell interactions. In the apo- plast liquid phase, the pollutants are solu- bilized and they can genera...

Ngày tải lên: 09/08/2014, 04:20

... scientific models that allowed the intensity of felling to be adjusted to the long-term production potential of forest stands and sites. ese models were applied over increasingly large areas. In ... the thin- ning and final felling of even-aged stands allowed a rapid increase in wood production to meet economic demands. In the Alps and, to a lesser extent, in othe...

Ngày tải lên: 07/08/2014, 03:22

... total leaf areas in seedlings of Mediterranean oaks (Fig. 3). The reduction in the mean area of individual leaves resulted in a non-linear increase in the total number of leaves of the plant ... seedlings (e.g., Q. suber ) could be sim- ply the result of arranging a large number of leaves along a stem whose growth rate is low. Similarly, species mean leaf size and se...

Ngày tải lên: 07/08/2014, 16:20

... number of alleles (from 9 to 76 alleles per locus). The total number of alleles scored in 930 individuals over all loci was 253. It was possible to detect 33 unique alleles, i.e. present only in ... estimate of inbreeding coefficient (F IS = 0.69 7) and the lack of successful amplification in a large proportion of individuals (up to 35 %). The question of null alleles of...

Ngày tải lên: 07/08/2014, 16:20