Báo cáo lâm nghiệp: "Tension wood occurrence in three cultivars of Populus × euramericana Part I: Inter-clonal and intra-tree variability of tension wood" ppsx
Báo cáo lâm nghiệp: "Tension wood occurrence in three cultivars of Populus × euramericana. Part I: Inter-clonal and intra-tree variability of tension wood" ppsx
... most planted cultivars in Valley of Cinca(Spain): I214, Luisa Avanzo and I-MC, as well as the intra-tree variability. We present here the distribution of tension wood in nine stems of poplar rapidly ... Lean in red alder (Alnus rubra): growthstress, tension wood, and righting response, Can. J. For. Res. 26(1996) 1951–1956. Tension wood variability in three cultivars 29the production of TW increased ... skeleton of the standing tree, (B) reconstruction of thetree shape and of the sampled discs, (C) disc measurements: growthrings and tension wood. Figure 2. Tension wood areas from the cultivars...
- 8
- 219
- 0
Báo cáo lâm nghiệp: "On the occurrence of web-spinning sawflies of the genus Cephalcia (Hymenoptera, Pamphiliidae) in the Czech Republic" potx
... 57–62Because of the lack of a recent survey of Cephal-cia species in the Czech Republic, the goals of this study were (i) to monitor web-spinning sawflies liv-ing on spruce in mountainous regions and ... and traps were operated in both forest types in parallel (Table 1).e traps were installed from the end of April to the end of October and emptied in two-week or one month intervals during ... abietis expanded in the Krkonoše Mts. in 2003 and 2006 (L 2006) what explains the positive correlation with C. abie- Table 2. Summary of variability explained by the main axes in the RDA...
- 6
- 352
- 0
Báo cáo lâm nghiệp: " Natural forest regeneration in spruce monocultures in the Ukrainian Beskids – prognosis by FORKOME model" ppt
... hospodařeníCorresponding author:Prof. Dr. hab. I K, Catholic University in Lublin, Faculty of Mathematics and Natural Sciences, Department of Landscape Ecology, Konstantynów 1H, 20-708 Lublin, Polandtel.: ... slope of the mountain (inclination 6°–8°) at the alti-tude of 650–652 m a.s.l. Brown soils are characteris-tic of these plots. ere are rich euthropic conditions in this stand. e area of stands ... considerable areas in the Ukrainian Carpathians and in the Beskids. According to G (1978), their area increased during two centuries from initial 126 thousand hectares to 325 thousand hectares...
- 8
- 330
- 0
Báo cáo lâm nghiệp: "Multifunctional forestry practices as a land use strategy to meet increasing private and public demands in modern societies" ppt
... (6): 290–298 and managing responsibly. Openness and flexibility in reacting to changing societal needs and values, understanding of the ecological, social and economic drivers determining their ... addresses the time perspective (permanent and continuing), the kinds of activities (maintaining and creating), the objectives (needs and goals), and the qualifying criteria (optimal fulfilment).Management ... regeneration of forests over large areas and the management of uniform stands. In the plains and foothills, the in- troduction of sustainable wood production during the 19th century quite often...
- 9
- 391
- 0
Báo cáo lâm nghiệp: "Short Communication Differences in the structure, species composition and diversity of primary and harvested forests on Changbai Mountain, Northeast China" ppsx
... after harvesting. By initially decreasing over-storey density and basal area, canopy openings created by logging triggered a rapid increase in recruitment into the seedling and sapling layers. ... patterns and associations of Pinus ko-raiensis and Tilia amurensis in broad-leaved Korean pine mixed forest in Changbai Mountain. Chinese Journal of Applied Ecology, 18: 1681–1687. (In Chinese)Corresponding ... identified. Of the overall number of tree species, 21 were present on both the primary and logged forest sites: 6 species of seedlings, 19 species of saplings, 15 species of poles and 9 species of...
- 10
- 399
- 0
Báo cáo lâm nghiệp: "Coppice-with-standards in floodplain forests – a new subject for nature protection" potx
... biocentres and biocorridors in today’s floodplain forests. e aim of this paper is to present the results of the inventory dealing with the present occurrence of the coppice-with-standards system in ... as the introduc-tion of spruce as covering for the pheasants and the establishment of large areas of agricultural land. In 1990, following the declaration of the area a Protected Landscape ... geological, geomorphological, and landscape forma-tion in Europe. Both the origin and the development of floodplain landscapes in Central Europe have been the subject of a long-term study (for...
- 6
- 300
- 0
Báo cáo lâm nghiệp: "Red deer density in the air-polluted area of forest ecosystems in the Krušné hory" pdf
... values of the estimate of the red deer population density were deter-mined in the Jelení hora hunting district in 2007 and 2008 using the FSC method, viz 24 ± 23 individuals·km–2 (95% CI) and ... the particular plots and dates of particular visits are shown in Table 1. In the Jelení hora hunting district in 2007, we found out a statistically signifi cant diff erence in the values of ... density were determined in the Jelení hora hunting district in 2007 and 2008. e FSC and CPM method was used giving 24 ± 23 individuals·km–2 (95% Table 1. e density of red deer (individuals·km–2)...
- 5
- 308
- 0
Báo cáo lâm nghiệp: "Seasonal ionic exchange in two-layer canopies and total deposition in a subtropical evergreen mixed forest in central-south China" pps
... 5.5, and 4.3 in rainwa-ter, 6.0, 6.6, 6.2, and 4.3 in throughfall and 7.0, 6.9, 6.1, and 4.7 in sub-throughfall in spring, summer, autumn, and winter,respectively.Ion exchange in canopies and ... pH of rainwater in summer (4.3) and winter (4.3) was very low, being a little bit higher in spring(4.7). As said, rain quantity in spring and summer accountedfor more than 70% of annual rainfall. ... 210 and 107 mm yr−1 of the rainfall was intercepted bythe top- and sub-canopy, indicating that 15% of annual precip-itation was intercepted by the top-canopy, and 9% of through-fall (or 8% of...
- 10
- 389
- 0
Báo cáo lâm nghiệp: "Unexpected disproportion observed in species composition between oak mixed stands and their progeny populations" pdf
... trend in Q. petrea in a particular context could beregarded as part of its strategy in progressively replacing Q.robur in successional forest development. Differences in sexallocation in dioecious ... because the threat of losing large amounts of pollen during pollination is high. In- creasing production of pollen is a strategy to improve repro-ductive success. In the case of the sessile oak, ... enable and reinforce effectivecolonization. However, verification of this hypothesis requiresdetailed studies of the flowering and fruiting biology of bothspecies.Considering the lack of any...
- 5
- 212
- 0
Báo cáo lâm nghiệp: " Narrow genetic base in forest restoration with holm oak (Quercus ilex L.) in Sicily" docx
... number of trees.4.2. Factors involved in genetic composition of seedlingsPractical considerations usually determine the selection of seed harvest site in Sicily, including nursery proximity and road ... Sicily. In thecase of Q. ilex acorn harvesting from Piano Zucchi forest, anincrease in the number of seed trees and distance between treesis recommended. In consideration of the wide extension of Piano ... confidence 98% of the seedlings could be as-cribed to one of the candidate mothers (97% of plantationindividuals and 100% individuals from the nursery sample).Within the assigned offspring over 17%...
- 7
- 272
- 0
Từ khóa: báo cáo lâm nghiệpcách làm báo cáo tốt nghiệphướng dẫn làm báo cáo tốt nghiệp khoa kế toáncách làm bìa báo cáo tốt nghiệpcách làm slide báo cáo tốt nghiệpcách làm báo cáo tốt nghiệp chuyên ngành kế toánNghiên cứu sự biến đổi một số cytokin ở bệnh nhân xơ cứng bì hệ thốngBáo cáo quy trình mua hàng CT CP Công Nghệ NPVchuyên đề điện xoay chiều theo dạngNghiên cứu sự hình thành lớp bảo vệ và khả năng chống ăn mòn của thép bền thời tiết trong điều kiện khí hậu nhiệt đới việt namNghiên cứu tổ chức pha chế, đánh giá chất lượng thuốc tiêm truyền trong điều kiện dã ngoạiMột số giải pháp nâng cao chất lượng streaming thích ứng video trên nền giao thức HTTPNghiên cứu tổ chức chạy tàu hàng cố định theo thời gian trên đường sắt việt namGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitPhát triển mạng lưới kinh doanh nước sạch tại công ty TNHH một thành viên kinh doanh nước sạch quảng ninhPhát triển du lịch bền vững trên cơ sở bảo vệ môi trường tự nhiên vịnh hạ longPhát hiện xâm nhập dựa trên thuật toán k meansNghiên cứu, xây dựng phần mềm smartscan và ứng dụng trong bảo vệ mạng máy tính chuyên dùngĐịnh tội danh từ thực tiễn huyện Cần Giuộc, tỉnh Long An (Luận văn thạc sĩ)Sở hữu ruộng đất và kinh tế nông nghiệp châu ôn (lạng sơn) nửa đầu thế kỷ XIXTổ chức và hoạt động của Phòng Tư pháp từ thực tiễn tỉnh Phú Thọ (Luận văn thạc sĩ)Kiểm sát việc giải quyết tố giác, tin báo về tội phạm và kiến nghị khởi tố theo pháp luật tố tụng hình sự Việt Nam từ thực tiễn tỉnh Bình Định (Luận văn thạc sĩ)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