Báo cáo lâm nghiệp: " Long-term effects of CO2 enrichment on bud phenology and shoot growth patterns of Norway spruce juvenile tree" potx

... Research Intention of Institute of Systems Biology and Ecology, Project No. AV0Z 60870520. Long-term effects of CO 2 enrichment on bud phenology and shoot growth patterns of Norway spruce juvenile ... acceleration of bud phenology result in prolonga- tion of the shoot growth period and in a subsequent enhancement of wood production (B...

Ngày tải lên: 07/08/2014, 03:22

... Program of China No. 201104070. Short Communication Differences in the structure, species composition and diversity of primary and harvested forests on Changbai Mountain, Northeast China DONGKAI ... species would not become dominant in the forest. e results of the multi-response per- mutation procedures (MRPP) further confirmed the dissimilari...

Ngày tải lên: 07/08/2014, 03:22

... test). RESULTS AND DISCUSSION Confirmation of flooding and P. alni infection effects on black alder e analysis of covariance confirmed that the both factors (flooding and P. alni infection) and their ... condition was Table 1. e effect of long-term flooding and Phytophthora alni infection on the development of black alder saplings Treatment per valid N L...

Ngày tải lên: 07/08/2014, 10:21

... stability as an intrinsic quality of forest e effects of cutting regimes on natural regeneration in submountain beech forests: species diversity and abundance M. B Institute of Forest Ecology, ... this in uence was found positive on plot M only. Fig. 5 illustrates the in uence of cutting on changes in the species composition of natural...

Ngày tải lên: 07/08/2014, 10:22

... and Pinus strobus [43]. A partial expla- nation may lie in a positive relationship between the concen- tration of P and amount of Rubisco, as observed in P. pinaster [55] and in herbaceous species ... argument against any lasting role of A max in the growth response. Concentrations of N, P, and K were maintained within a relatively small range, and ther...

Ngày tải lên: 08/08/2014, 00:21

... 10.1051/forest:2005037 Original article Interactive effects of irradiance and water availability on the photosynthetic performance of Picea sitchensis seedlings: implications for seedling establishment ... 2005) Abstract – The impact of water availability on the photosynthetic performance of three year old, commercially obtained, Sitka spr...

Ngày tải lên: 08/08/2014, 00:22

... vertical and horizontal bar indi- cates the standard error of the mean. Effects of phosphorus and light on early growth of maritime pine 577 density (PPFD) at the top of the seedlings was 120180 and ... T X T N +() 2 T b – ∑ = Effects of phosphorus and light on early growth of maritime pine 581 4. DISCUSSION Our results reveal the occurr...

Ngày tải lên: 08/08/2014, 00:22

... availability. In this study we analysed the leaf traits and patterns of gas- exchange during the well-watered part of the growth season in mature trees and seedlings of three co-occurring Quercus ... However, in our case it seems that the interspecific differences in leaf life span show a smaller effect on the phys- iological differences at leaf level in...

Ngày tải lên: 08/08/2014, 01:21

... types of diversity are as manifold as the ways of calculating measures of diversity. Furthermore, any diversity determination is relative to the con- ditions of the area concerned. Considering the ... Montes et al. increases the illumination on the stems and in the case of Q. faginea this produces an intense sprouting from the stem, instead of the reoccup...

Ngày tải lên: 08/08/2014, 01:22

... through decreased stomatal conductance and increased allocation of N. As a consequence, C assimilation, carbohydrate concentration, and N availability for new growing components were decreased in lifted ... in non-structural carbohydrate concentration, also altered carbohydrate status of Corsican pine seedlings. Starch concentration increased strongly in needles the f...

Ngày tải lên: 08/08/2014, 01:22

... 20 1 -21 1 Carbon isotope composition and new carbon allocation Carbon isotope composition of all nonla- belled plants was on average 17‰ more negative in plants in ... elevated atmospheric CO 2 concentration and water stress. More precisely, i) carbon allocation ( 1 3CO 2 labelling) to the different plant components was...

Ngày tải lên: 08/08/2014, 18:21

... survival of the three treat- ments, averaged over stock types, varied by 1% or less (table II). Short note The effects of stock type and radicle pruning on blue oak morphology ... ten rows of nine seedlings each. Each row contained one randomly positioned seedling from each of the nine treatment combi- nations (three stock types...

Ngày tải lên: 08/08/2014, 18:21

... capacity. The effects of transplanting stress on photosynthesis, stomatal conductance and leaf water potential in Cedrus atlantica Manetti seedlings: role of root regeneration J.M. ... were main- tained at 20°C in order to promote root regen- eration. Assimilation rate measurements and root observations (number of growing roo...

Ngày tải lên: 09/08/2014, 04:20

... 9 for cv. Beaupr6 and LPI 12 for cv. Robusta. On the whole, acid rain caused a decrease of stomatal conduc- tance; gs sat was reduced by 24.0% for cv. Beaupr6 and by ... Karnosky D.F. & Bormann F.H. (1986) Effects of ambient ozone on the produc- tivity of Populus tremuloides Michx. grown under field conditions. Can. J. For. R...

Ngày tải lên: 09/08/2014, 04:20

... been exposed to ozone. For the Sitka spruce, there was no effect of pollutant exposure on the timing of frost hardiness attained by the shoots but, compared to the Norway shoots ... assumed dead). The shoots + vials were then autoclaved and the total conductivity (C-) of the solution determined. Based on the assumption tha...

Ngày tải lên: 09/08/2014, 04:20