Báo cáo lâm nghiệp: "Horizontal structure of forest stands on permanent research plots in the Krkonoše Mts and its development" ppsx
Báo cáo lâm nghiệp: "Horizontal structure of forest stands on permanent research plots in the Krkonoše Mts. and its development" ppsx
... given site condi-tions and stand type. From the aspect of horizontal structure, during the small forest development cy-cle, the majority of the stands in national parks of the Krkonoše Mts. proceed ... 539ment and to the documentation of a great impact of anthropogenic processes (mainly of air pollution and forest management) on the condition and de-velopment of the Krkonoše Mts. forests. ... national parks of the Krkonoše Mts. has brought about the knowl-edge of successions of developmental stages and phases in the most important stand types of the Krkonoše Mts. forests, both in...
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Báo cáo lâm nghiệp: "Health status of forest stands on permanent research plots in the Krkonoše Mts" pptx
... beech) and spruce stands in the Krkonoše Mts. is described on the basis of evaluation of transition matrices describing the probability of a change in the assess-ment of defoliation of particular ... pollution impact on forest stands in the Krkonoše Mts. in the 1979 horizon. Opera Corcontica, 19: 79–94. (in Czech)V S. (1981): Health condition and reduced fructifi cation of autochthonous ... stands Dynamics of mean foliation of beech in beech stands on PRP 27–32 in the years 1980–2009 is documented in the Table 1. The development of average foliage and of the proportion of defoliation degrees...
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Báo cáo lâm nghiệp: "Structure and development of forest stands on permanent research plots in the Krkonoše Mts" pdf
... ability in higher elevations and tolerates conditions in the ecotone of the up-per forest limit, although its optimal growth and production is reached in the conditions of the 5th and 6th forest ... dynamics of beech, mixed (fi r beech and spruce beech stands) and spruce stands, relict pine woods and stands in the ecotone of the upper forest limit in diff erent site, stand, air-pollution and ... whole stand formed exclusively by spruce. CONCLUSIONS e presented research on structure and develop-ment of forest stands in national parks of Krkonoše Mts. describes the stand of forest...
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Báo cáo lâm nghiệp: "Regeneration of forest stands on permanent research plots in the Krkonoše Mts" pdf
... Scotch pine, silver birch and other tree species of different age and size. Within the forest cycle the Fig. 8. e natural layering of beech in the ecotone of the upper forest limit in the Krkonoše ... ability in higher elevations and tolerates conditions in the ecotone of the upper for-est limit, although its optimal growth and produc-tion is reached in the conditions of the 5th and 6th forest ... (2010b): Structure and development of forest stands on research plots in the Krkonoše Mts. Journal of Forest Sci-ence, 56: 518–530Y D.A. (2000): Comparison of an Empirical Forest Growth and...
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Báo cáo lâm nghiệp: "Uncertainty estimation of biomass expansion factors for Norway spruce in the Czech Republic" pot
... sensitivity in un-certainty of the BEF by ignoring the uncertainty in stand ageincreased the error in young and old age-classes. Having the uncertainty in stand age included with the Monte Carlo ... 60% of constant intraplot resid-ual variance showed that the best way to increase the preci-sion of BEFs would be the reduction in error of the biomass and volume models (Fig. 5). Examining the ... function of stem volume in China. In Finland Lehtonenet al. [12] modelled stand-level BEFs as a function of standage, and found that the relationship was rather weak for to-tal biomass, but stronger...
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Báo cáo lâm nghiệp: "Water relations of cork oak (Quercus suber L.) seedlings in response to shading and moderate drought" ppt
... (RWCa) and inverse of osmotic potential at full turgor (Ψπ100). The x- and y-coordinates of the first data point of the linear portion of the PV curve corresponded to relative water content at the ... as the main effects was used. The relationship between var-iables was assessed using the Pearson (r) coefficient, and considering the individual values of all seedlings. Linear regressions of ... toprevent oversaturation of apoplasmic and intercellular spaces in leavesbecause of inmersion. Oversaturation during the first steps of dehy-dration causes the shift in leaf saturation deficit due...
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Báo cáo lâm nghiệp: "Relative efficiency of alternative methods to evaluate wood stiffness in the frame of hybrid larch (Larix × eurolepis Henry) clonal selection" potx
... estimate of gain for clonal selection using indirect method (9% instead of 11.5% – Tab. IX). Meanwhile, the lower estimate of gainslightly affects the final selection of the clone: in this sample(Tab. ... 0.5 and 2.0 m on the North face of each tree, in the sapwood. Two over bark measures with the Pilodynwere also recorded on standing trees at 1.3 m on the North and Southfaces in 1993 and on the ... by the cutting in the sapwood of each board of a long specimen (from 362 to 712 mm long with a cross section of 20 × 20 mm) containing the ring chosen for the ultrasound speedmeasurement. The...
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Báo cáo lâm nghiệp: "A survey of forest pollution with heavy metals in the Natural Forest Region (NFR) Moravskoslezské Beskydy with particular attention to Jablunkov Pass" docx
... 64–72Zinc The contents of zinc are higher in the area of Jablunkov Pass than in the remaining area of NFR (Fig. 3). Its higher contents are evident in the upper-most mineral horizon along the ... Chromium is an exception with the highest contents found in the southern part of NFR. e medians of concentrations of elements in the forest floor of Norway spruce stands in the area of NFR except Jablunkov ... 0.05) in the uppermost mineral horizon in the profile (Tables 2 and 3). In the case of zinc, lead and cadmium we found higher contents in soils in the area of the Pass. is is confirmed by the...
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Báo cáo lâm nghiệp: "Effects of selective thinning on growth and development of beech (Fagus sylvatica L.) forest stands in south-eastern Slovenia" docx
... trees in the first thinning and thinning intensities, taking account of economical factors [46, 51]. In Slovenia, selective thinning is the main type of thin-ning [34]. However, the thinning of ... again during the lastthinning. In the T2, 258 crop trees were chosen in the first thinning, and only 62% of these trees were chosen again during the last thinning. Only crownsuppression and ... of crop trees in the young stands and al-teration of crop trees caused one of the main weaknesses of the selection thinning type, namely, high costs. In the totalstand tending costs, thinning...
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Báo cáo lâm nghiệp: "Effects of microsite variation on growth and adaptive traits in a beech provenance trial." pps
... for the modelling of autumn discoloration. e length of the vegetation period was then assessed as the diff erence between the midpoints of autumn discoloration and spring fl ushing.As the ... University in Zvolen, Zvolen, SlovakiaABSTRACT: The effects of the within-trial spatial variation of environmental factors on phenotypic traits were studied in the Slovak plot of the international ... done in breeding experiments, as the matter of interest is mostly the composite eff ect of environmental diff erences among trials on pheno-typic variation rather than its decomposing into the...
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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 vật liệu biến hóa (metamaterials) hấp thụ sóng điện tử ở vùng tần số THzNghiên cứu tổ chức chạy tàu hàng cố định theo thời gian trên đường sắt việt namBiện pháp quản lý hoạt động dạy hát xoan trong trường trung học cơ sở huyện lâm thao, phú thọGiáo 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 carôtenôitNGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWAN SLIDEPhối 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 thọPhát triển mạng lưới kinh doanh nước sạch tại công ty TNHH một thành viên kinh doanh nước sạch quảng ninhPhát hiện xâm nhập dựa trên thuật toán k meansĐịnh tội danh từ thực tiễn huyện Cần Giuộc, tỉnh Long An (Luận văn thạc sĩ)Tìm hiểu công cụ đánh giá hệ thống đảm bảo an toàn hệ thống thông tinSở 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)BT Tieng anh 6 UNIT 2Tranh 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)Nguyên tắc phân hóa trách nhiệm hình sự đối với người dưới 18 tuổi phạm tội trong pháp luật hình sự Việt Nam (Luận văn thạc sĩ)Giáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtBÀI HOÀN CHỈNH TỔNG QUAN VỀ MẠNG XÃ HỘI