Báo cáo lâm nghiệp: "Age-related physiological and structural traits of chestnut coppices at the Castelli Romani Park (Italy)" pot

Báo cáo lâm nghiệp: " Humus conditions and stand characteristics of artificially established young stands in the process of the transformation of spruce monocultures" pdf

... moder in the unmixed spruce stand and mixed stands, mull-moder in the unmixed beech stand (according to N et al. 2001). The high accumulation of humus in H horizon in the mixed stand of ... floor occurs in the stand of larch with beech (52.6 t/ha) and the statistically lowest one in the unmixed beech stand (22.0 t/ha). e mixed stand of spruce with beech and the spruce stand repre-sent ... in all stands was noted. Statistically significant differences were not detected in the content of DOC in forest floor and soil between spruce and beech stands and mixed stands under given conditions...

Báo cáo lâm nghiệp: "Soil environment and nutrient status of Norway spruce (Picea abies [L.] Karst.) underplantings in conditions of the 8th FAZ in the Hrubý Jeseník Mts" potx

... Nor-way spruce (Picea abies [L.] Karst.) underplantings in the Hrubý Jeseník Mts. In the area concerned 19 research plots were established, representing the ridge sites of the 8th FAZ of acid ... growth and development of Norway spruce plantings in the ridge part of the Hrubý Jeseník Mts.Keywords: Norway spruce; nutrient deficiency symptoms; stand nutrition; soil environment Supported by the ... nutrition of stands.R ef er en ce sB J., MŁ S. (2008): Stability of Norway spruce (Picea abies [L.] Karst.) stands in the Beskid Ś laśki and beskid Žywiecki Mts. from the aspect of their...

Báo cáo lâm nghiệp: "Canopy structure and spatial heterogeneity of understory light in an abandoned Holm oak woodland" pps

... eﬀect of land use change onthe canopy structure and the understory light of a Holm oak woodland in central Spain. The woodland studied had two dis-tinct zones, one where the original woodland structure ... mean height of individual Holm Tab le I. Mean and standard deviation (SD) of canopy height, number of stems and basal area for the 900 1-m2sampling points of the studyplot, and mean and standard ... (tree- and shrub-dominated zones) are indicated on the map. Distances shown in the axes are in m.vegetation in many current Mediterranean ecosystems, where abandoned woodlands and shrublands develop...

Báo cáo lâm nghiệp: "Composition, distribution and supposed origin of mineral inclusions in sessile oak wood – consequences for microdensitometrical analysis" ppsx

... FeSapwood 1 0.01 0.03 – 0.01 0.05 – – 0.20 0.07 0.02Sapwood 2 – 0.03 – – 0.02 – – 0.18 0.07 – Sapwood 3 – 0.01 – – – – – 0.11 0.30 – Heartwood 1 < 0.01 < 0.01 – 0.01 < 0.01 – – 0.07 ... the formation of mineral inclusions isinduced or increases when the main functions of the woodytissues shift from transport and storage of water, minerals and assimilates, as in sapwood and ... present in the stem Ann. For. Sci. 64 (2007) 1 1–1 9 11c INRA, EDP Sciences, 2007DOI: 10.1051/forest:2006083Original articleComposition, distribution and supposed origin of mineral inclusions in...

Báo cáo lâm nghiệp: "ce nucleation and frost resistance of Pinus canariensis seedlings bearing needles in three diﬀerent developmental states" pptx

... 177–182 177c INRA, EDP Sciences, 2007DOI: 10.1051/forest:2006102Original articleIce nucleation and frost resistance of Pinus canariensis seedlings bearing needles in three diﬀerent developmental ... in frost resistance of expanding current-year needles of the Canary Island pine and subalpine evergreentimberline conifers of continental Europe suggest that frost hardening during sprouting and ... very frost susceptible. In this study we aimed to assess frost resistance of needles in seedlings of P. canariensis in diﬀerent stages of development:currently expanding, fully expanded, and...

Báo cáo lâm nghiệp: "Modelling height and diameter growth of dominant cork oak trees in Spain" ppt

... 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 main cork producing areas in Spain.Difference forms of ... asrepresented by the dominant trees [22]. Height growth of dom-inant trees is used mainly to define the site index in even-agedstands and is one of the basic equations or submodels in growth and yield...

Báo cáo lâm nghiệp: "Carbon pool and substitution effects of an increased use of wood in buildings in Switzerland: first estimates" pdf

... GHG-related effects of an increased use of wood within technosphere.One important effect of an increased use of wood wasneglected: the decline of the carbon storage in the forestsbecause of an increased ... articleCarbon pool and substitution effects of an increased use of wood in buildings in Switzerland: first estimatesFrank WERNERa*, Ruedi TAVERNAb, Peter HOFERb, Klaus RICHTERca Environment and ... emissions of around 18% of the total effect of an increased use of wood in Switzerland.If one considers the effect of an increased use of wood in the mirror of the reduction commitment in absolute...

Báo cáo lâm nghiệp: "Age-related physiological and structural traits of chestnut coppices at the Castelli Romani Park (Italy)" pot

... 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 potentialproductivity in response to changing factor [23, 25, 26, 42]. The analysis of the physiological traits trend underlined the importance of these traits as indicator of the resources ... different periods of the vegetative cyclereflected the trend of physiological traits. The results wereindicative of chestnut adaptability to environmental constraints and of its functional...

Báo cáo lâm nghiệp: "Nutrient status and field performance of tree seedlings planted in Mediterranean degraded areas" doc

... 10.1051/forest:2006003Original articleNutrient status and field performance of tree seedlings planted in Mediterranean degraded areasAlejandro VALDECANTOSa,b*, Jordi CORTINAc, V. Ramón VALLEJOaa Centro ... (SL) and root collar diameter (RCD) of seedlings of Pinus halepensis and Quercus ilex 2.5 years after out-planting in eight degraded woodland sites on soils derived from limestone (L) and marl ... selected Pinus halepensis and Quercus ilex seedlings perplot. The number of Q. ilex seedlings sampled in Yátova 2 (on marl)was 5, and it was not possible to sample Q. ilex seedlings in the Buñolsite...

Báo cáo lâm nghiệp: "Light acclimation and photosynthetic response of beech (Fagus sylvatica L.) saplings under artificial shading or natural Mediterranean conditions" docx

... 257Ann. For. Sci. 63 (2006) 257 266â INRA, EDP Sciences, 2006DOI: 10.1051/forest:2006004Original articleLight acclimation and photosynthetic response of beech (Fagus sylvatica L.) saplings under ... fromzero). Means of Pr and Pb were 32.6% and 6.6%, for the natural regeneration, 13.5% and 2.6 % for the potted saplings in north-eastern France, and 10% and 2.1% for the potted saplings insouthern ... the potted saplings innorth-eastern France (plots and linear regression) and southern France (mean, standard deviation and confidence interval of the mean), and forthe saplings of natural regeneration...

Báo cáo lâm nghiệp:"Water relations and hydraulic characteristics of three woody species co-occurring in the same habitat" pptx

... 10.1051/forest:2003021Original articleWater relations and hydraulic characteristics of three woody species co-occurring in the same habitatAndrea NARDINIa*, Sebastiano SALLEOa, Patrizia TRIFILÒa and Maria ... longer in hydraulic continuity with the soil [5, 12]. In view of investigating possible relationships existingbetween changes in hydraulic resistance of plants and theiradaptation to the environment, ... with a maximum in autumn and a minimum in winter (between January and March).Winter temperatures often fall below 0 °C and in the coldest month(January) the mean of the daily minima is, on average,...

Báo cáo lâm nghiệp:"Shoot growth and phenology modelling of grafted Stone pine (Pinus pinea L.) in Inner Spain" potx

... (2003) 527537â INRA, EDP Sciences, 2003DOI: 10.1051/forest:2003046Original articleShoot growth and phenology modelling of grafted Stone pine (Pinus pinea L.) in Inner SpainSven MUTKE, Javier ... were consistent with observations in mature non -grafted stone pines. stone pine (Pinus pinea) / growth and flowering phenology / phenology modelling / growing-degree-daysRésumé – Modélisation ... flowering phenology, branch thickening, needle and cone growth was monitored during four years in grafted stone pines in Inner Spain. The relevance of environmental influence on growth and flower...

Báo cáo lâm nghiệp: "Biomass increment and carbon balance of ash (Fraxinus excelsior) trees in an experimental stand in northeastern France" docx

... compared towood biomass increment of beech trees of comparable diameter in an experimental stand (Hesse) in northeastern France [24]. Biomass increment and carbon balance of ash 579layer to total ... 577Ann. For. Sci. 61 (2004) 577588â INRA, EDP Sciences, 2004DOI: 10.1051/forest:2004053Original article Biomass increment and carbon balance of ash (Fraxinus excelsior) trees in an experimental ... compared the annual biomass increment of ash trees to their annual carbon balance calculated from the end of thegrowing season in 1994 to the end of the next one in 1995. In 1995, three trees of variable...

Báo cáo lâm nghiệp: " Pointer years and growth in Turkey oak (Quercus cerris L) in Latium (central Italy). A dendroclimatic approach" docx

... reported to define some anatom-ical features of pointer years. An automatic image analysis system was used to examine anatomicalfeatures in pointer years and a new method ... precipitation on ring width.Figure 7 shows the comparison between pointer years in the mean residual curve Original article Pointer years and growth in Turkey oak (Quercus cerris ... Serre-Bachet, 1981) and articles deal-ing with the same subject have been pub-lished by Janous and Bartak (1991), Jaro and Tatraaljai (1984), Babos (1986) and Raev and Georgiev...

Báo cáo lâm nghiệp: "Gas exchange and water relations of evergreen and deciduous tropical savanna trees" docx

... exchange and water relations of evergreen and deciduous tropical savanna treesG. Goldstein1F. Rada2P. Rundel’A. Azocar2A. Orozco21 Laboratory of Biomedical and Environmental ... (1987) Water transport efficiency in stems of evergreen and deciduous savanna trees. In: Proceedings of the International Conference on Measure-ment of Soil and Plant Water ... VenezuelaIntroductionMany neotropical savannas with pro-nounced wet/dry seasonality and well-drained soils are characterized by thepresence of both evergreen and decidu-ous trees. The evergreen...

Xem thêm

Từ khóa: Nghiên cứu sự biến đổi một số cytokin ở bệnh nhân xơ cứng bì hệ thống Nghiên cứu tổ hợp chất chỉ điểm sinh học vWF, VCAM 1, MCP 1, d dimer trong chẩn đoán và tiên lượng nhồi máu não cấp Biện pháp quản lý hoạt động dạy hát xoan trong trường trung học cơ sở huyện lâm thao, phú thọ Giáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôit Giáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôit Giáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôit Giáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôit NGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWAN SLIDE Phối hợp giữa phòng văn hóa và thông tin với phòng giáo dục và đào tạo trong việc tuyên truyền, giáo dục, vận động xây dựng nông thôn mới huyện thanh thủy, tỉnh phú thọ Định tội danh từ thực tiễn huyện Cần Giuộc, tỉnh Long An (Luận văn thạc sĩ)Thơ nôm tứ tuyệt trào phúng hồ xuân hương Tổ chức và hoạt động của Phòng Tư pháp từ thực tiễn tỉnh Phú Thọ (Luận văn thạc sĩ)BT Tieng anh 6 UNIT 2 Tranh tụng tại phiên tòa hình sự sơ thẩm theo pháp luật tố tụng hình sự Việt Nam từ thực tiễn xét xử của các Tòa án quân sự Quân khu (Luận văn thạc sĩ)Giáo án Sinh học 11 bài 15: Tiêu hóa ở động vật chuong 1 tong quan quan tri rui ro Giáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vật Giáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vật MÔN TRUYỀN THÔNG MARKETING TÍCH HỢP TÁI CHẾ NHỰA VÀ QUẢN LÝ CHẤT THẢI Ở HOA KỲ