Báo cáo lâm nghiệp: "Modelling canopy conductance and stand transpiration of an oak forest from sap flow measurements " docx

... differences in the root system development and health condition were found either between the trees of identical height from self-seeding and from planting in the region of Krušné hory Mts. and in the ... 452–461 JOURNAL OF FOREST SCIENCE, 53, 2007 (10): 452–461 Root system development and health condition of sycamore maple (Acer...

Ngày tải lên: 07/08/2014, 04:20

... of the 1990s. Forest soils showing the insufficiency of main nutrients remain today as the main factor affecting the forest vitality. e situation in the soil is subsequently reflected in the nutrition ... of the decline of Norway spruce (Picea abies [L.] Karst.) stands in Jablunkov, with a focus on air pollution load, and the state of forest soil and nu...

Ngày tải lên: 07/08/2014, 10:21

... 929 c  INRA, EDP Sciences, 2006 DOI: 10.1051/forest:2006076 Original article Modelling dominant height growth and site index curves for rebollo oak (Quercus pyrenaica Willd.) Patricia A a * ,IsabelC  ˜  b , ... A dominant height growth model and a site index model were developed for rebollo oak (Quercus pyrenaica Willd.) in northwe...

Ngày tải lên: 07/08/2014, 16:20

... online at: c  INRA, EDP Sciences, 2007 www.afs-journal.org DOI: 10.1051/forest:2007022 Original article Differential photosynthetic and survival responses to soil drought in two evergreen Nothofagus ... increas- ing drought in N. nitida, remaining close to optimal values in N. dombeyi down to −2.5 MPa (Fig. 2). At Ψ m > −1.5MPa, ∆F/Fm  and qP were lower...

Ngày tải lên: 07/08/2014, 16:21

... 2005 DOI: 10.1051/forest:2005008 Original article Managing diameter growth and natural pruning of Parana pine, Araucaria angustifolia (Bert.) O Ktze., to produce high value timber Leif NUTTO a , Peter ... present work was to analyse diameter growth and the relationship of natural pruning and various morphological characteristics of Para...

Ngày tải lên: 08/08/2014, 00:21

... ageing of cork oak stands, loss of cork quality [41], intense pruning [8] and increased cork oak decline (“seca”) [27]. Cork oak stands in Spain can be differentiated into open cork oak woodlands ... treatments. In this study, we have developed height and diameter growth models for dominant cork oak trees using stem analysis data from two of the m...

Ngày tải lên: 08/08/2014, 00:22

... higher in the west of the mountain crest than in the eastern side, leading at a value of –20 mm of WB deficit in June for 400 m of altitude in the west side of the crest and 550 m of altitude in the ... (soil conditions) and physical (climatic) variables that most strongly influence tree species composition in the forests of the Vosges Mount...

Ngày tải lên: 08/08/2014, 00:22

... sativa in the Castelli Romani Park, due to the favourable climatic and soil conditions for the species. Although the intensive exploi- tation of this area, the analysed coppice showed the great capac- ity ... indicator of potential productivity in response to changing factor [23, 25, 26, 42]. The analysis of the physiological traits trend underlined the impo...

Ngày tải lên: 08/08/2014, 00:22

... late winter to early summer, and eat foliage, shoots and acorns of oaks in summer and autumn [20]. We have carried out two different studies in these rangelands to assess the effect of post-fire natural and ... Mediterranean oaks with contrasting leaf habit after a wildfire Josep Maria E * , Abdessamad H ,JavierR Centre de Recerca Ecològica i...

Ngày tải lên: 08/08/2014, 00:22

... tremuloides and the resultant canopy gaps formed, appear to be critical for P. glauca regen- eration in mature and old stands. Natural regeneration may be enhanced by taking advantage of the advanced regeneration during ... Recruitment pattern of P. glauca seedlings changed along the chronosequence. L(t) analysis (Fig. 4) showed that the spatial distribution...

Ngày tải lên: 08/08/2014, 01:22

... note Ecophysiological factors contributing to the distributions of several Quercus species in the intermountain west JR Ehleringer, SL Phillips Department of Biology, University of Utah, ... examine aspects of the water relations of these three oak species native to the intermountain west and of their hybrids under common growth en...

Ngày tải lên: 08/08/2014, 18:21

... even in the absence of fire. ECOPHYSIOLOGICAL ATTRIBUTES OF EASTERN OAK SPECIES The studies reviewed in the previous sec- tions indicate that eastern oak species have expanded ... on the gently rolling till plains of Ohio and Indi- ana, and with Tilia americana in south- western Wisconsin, northwestern Illinois, northeastern lowa...

Ngày tải lên: 08/08/2014, 18:21

... canopy conductance and stand transpiration of an oak forest from sap flow measurements A Granier, N Bréda Équipe bioclimatologie et écophysiologie, unité d’écophysiologie forestière, Centre ... Weir PL (1992) Tran- spiration and canopy conductance in a pristine broad- leaved forest of Nothofagus: an analysis of xylem sap flow and...

Ngày tải lên: 08/08/2014, 18:21

... Defining a1 -a10 as

Ngày tải lên: 08/08/2014, 18:21

... Winter moisture content and frost-crack occurrence in oak trees (Quercus petraea Liebl. and Q. robur L.) B. Cinotti Station de Recherches sur la Qualite des Bois, INRA-CRF, ... 1978). In this paper, we report our observations of winter moisture content variation in oak trees, using non- destructive sampling by increment cores,...

Ngày tải lên: 09/08/2014, 04:20