Xem 1-20 trên 48 kết quả Forest structure
  • Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: "Growth trends reveal the forest structure during Roman and Medieval times in Western Europe: a comparison between archaeological and actual oak ring series (Quercus robur and Quercus petraea)"

    pdf9p toshiba5 19-09-2011 20 2   Download

  • Chapter 10 Rooting Patterns of Old-Growth Forests: is Aboveground Structural and Functional Diversity Mirrored Belowground? When we think of old-growth forests, we generally imagine old forests with large trees and possibly a highly diverse forest structure resulting from the death of individual trees and the resulting

    pdf19p mama15 15-10-2010 41 3   Download

  • The Context-Free backbone of some natural language analyzers produces all possible CF parses as some kind of shared forest, from which a single tree is to be chosen by a disambiguation process that may be based on the finer features of the language. We study the structure of these forests with respect to optimality of sharing, and in relation with the parsing schema used to produce them. In addition to a theoretical and experimental framework for studying these issues, the main results presented are: sophistication in chart parsing schemata (e.g.

    pdf9p bungio_1 03-05-2013 21 2   Download

  • Without access to basic financial services, Africans are at risk of remaining at the margins of economic opportunity with little hope of realizing their tremendous creative potential. In the past, most poor Africans relied on home- grown, often unreliable and exploitative traditional services in the form of deposit collectors and moneylenders. Now microfinance is a big part of the picture.

    pdf0p bi_ve_sau 17-01-2013 13 1   Download

  • Syntax-based translation models that operate on the output of a source-language parser have been shown to perform better if allowed to choose from a set of possible parses. In this paper, we investigate whether this is because it allows the translation stage to overcome parser errors or to override the syntactic structure itself. We find that it is primarily the latter, but that under the right conditions, the translation stage does correct parser errors, improving parsing accuracy on the Chinese Treebank. ...

    pdf5p nghetay_1 07-04-2013 21 1   Download

  • This paper proposes a convolution forest kernel to effectively explore rich structured features embedded in a packed parse forest. As opposed to the convolution tree kernel, the proposed forest kernel does not have to commit to a single best parse tree, is thus able to explore very large object spaces and much more structured features embedded in a forest. This makes the proposed kernel more robust against parsing errors and data sparseness issues than the convolution tree kernel.

    pdf11p hongdo_1 12-04-2013 22 1   Download

  • This module presents the design points to consider when planning a multipledomain structure. Included are strategies for assessing the need for multiple domains, and reasons for maintaining a single-domain structure. The module briefly examines the Kerberos V5 protocol security process and how it affects trust relationships within a multiple-domain structure. The module also examines how those trust relationships affect design.

    pdf30p thuyvan 12-08-2009 82 20   Download

  • Other functions not described in this document may be available. However, this fact shall not constitute an obligation to supply such functions with a new control, or when servicing.We have checked that the contents of this document correspond to the hardware and software described. There may be discrepancies nevertheless, and no guarantee can be given that they are completely identical. The information contained in this document is reviewed regularly and any necessary changes will be included in the next edition. We welcome suggestions for improvement.

    pdf142p nhan321 24-10-2009 68 15   Download

  • Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí lâm nghiệp đề tài: Structure and development of forest stands on permanent research plots in the Krkonoše Mts...

    pdf13p toshiba4 13-09-2011 29 8   Download

  • The last decade has contributed significantly to the development of research on the biogeochemistry of tropical mangrove ecosystems. Also obvious during the last decade is the continued and dramatic destruction of natural tropical mangrove resources in Southeast Asia (Fig. 1.1). The naturally high productivity of tropi- cal mangroves has traditionally been exploited for a wide variety of purposes, both as sources of forestry or fisheries products and they have also been used for human settlement (Hatcher et al., 1989; Platong, 1998).

    pdf392p banhkem0908 24-11-2012 19 7   Download

  • The objective of the first part of the questionnaire was to gather information on the relative importance of different types of forest goods and services in the EU Member States. The respondents were asked to rank the relative importance of forest goods and services (from 1 – not important; to 5 – very important), according to their own perceptions about the total benefits forest goods and services provide to the society. The aim of the second part (Part B) of the questionnaire was to produce an overview of financing mechanisms used in the EU-27. For this purpose, the respondents...

    pdf28p dangsuynghi 15-03-2013 19 6   Download

  • Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí lâm nghiệp đề tài: Horizontal structure of forest stands on permanent research plots in the Krkonoše Mts. and its development...

    pdf10p toshiba4 13-09-2011 27 5   Download

  • The economy has made considerable progress in shaking off the legacy of the 2001 economic crisis and is on a path of growth and increased trade integration, underpinned by improved macro- economic stability and structural reforms. During the last five years real GDP growth has been impressive, with an annual average growth rate of 6.9%; inflation fell from an average of 77.

    pdf18p quaivatxanh 30-11-2012 25 5   Download

  • To better understand the international perspective of public policies for the elderly, in line with the parameters that serve as tendencies for national policies, one must contextualize international health conferences that had health promotion as their central topic. Since the Declaration of Alma-Ata, in 1978(5), it has been noted that measures and characteristics of health promotion imply a search for healthier life styles and active aging. Health promotion is seen as a process of community qualification, aiming to improve life and health conditions.

    pdf13p thankinhphanliet 01-01-2013 28 5   Download

  • Chapter 6 Functional Relationships Between Old-Growth Forest Canopies, Understorey Light and Vegetation Dynamics Christian Messier, Juan Posada, Isabelle Aubin, and Marilou Beaudet Old-growth forests are characterised by the presence of old trees (200 years of age), considerable amounts of large pieces of dead wood and a complex horizontal and vertical structure

    pdf25p mama15 15-10-2010 57 4   Download

  • Tuyển tập những bài báo cáo nghiên cứu khoa học hay nhất được đăng trên tạp chí JOURNAL OF FOREST SCIENCE đề tài: This special issue of the Journal of Forest Science is a result of the international conference Species Diversity, Population Structure and Impact of Animals and...

    pdf1p toshiba3 09-09-2011 26 4   Download

  • Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài:"Links between tree structure and functional leaf traits in the tropical forest tree Dicorynia guianensis Amshoff (Caesalpiniaceae)"

    pdf12p toshiba5 19-09-2011 26 4   Download

  • Replacing agricultural land for energy crop plantations, as the former lack proper structure (becauseoffollowingmonoagriculturalpattern)cannotbejustifiedbyanypossibleterms.The biodiversitythatenergycropssupportcanhaveapositiveimpactononetypeofspecieswhere acompletelyharmfulimpactonanother. Plantingnonindigenouscrops for thesake for increasingproductionandprofitmayharm the localbiodiversityevenfurther.Oftennonindigenouscropsdestroythenatural landscapeand may lead to fragmentationof theecologicaldiversity.

    pdf86p loixinloi 08-05-2013 16 4   Download

  • Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: Effect of leaf biomass and phenological structure of the canopy on plot growth in a deciduous hardwood forest in northern Japan...

    pdf8p toshiba5 15-09-2011 23 3   Download

  • Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: Extended length rotation to integrate timber and pine nut production with the conservation of structural diversity in a Pinus pinea (L.) forest...

    pdf9p toshiba5 15-09-2011 19 3   Download

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