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Soil analysis

Xem 1-20 trên 140 kết quả Soil analysis
  • Tham khảo tài liệu 'manual for soil analysis-monitoring and assessing soil bioremediant phần 1', khoa học tự nhiên, hoá học phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf37p longdencachep 19-09-2011 37 7   Download

  • Tham khảo tài liệu 'manual for soil analysis-monitoring and assessing soil bioremediation phần 4', khoa học tự nhiên, hoá học phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf37p longdencachep 19-09-2011 45 7   Download

  • Tham khảo tài liệu 'manual for soil analysis-monitoring and assessing soil bioremediation phần 2', khoa học tự nhiên, hoá học phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf37p longdencachep 19-09-2011 39 4   Download

  • Tham khảo tài liệu 'manual for soil analysis-monitoring and assessing soil bioremediation phần 3', khoa học tự nhiên, hoá học phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf37p longdencachep 19-09-2011 49 4   Download

  • Anthropogenic fires have varying effects on the oak-dominated forests of the Zagros Mountains in western Iran. The objective of this project was to investigate the effects of fire on various components of soil. For this purpose three homogeneous and neighboring sites were inspected.

    pdf11p danhdanh11 09-01-2019 7 0   Download

  • This third edition retains the range of analytical techniques and the structure of individual chapters of the second edition. However, there are some significant changes, with the introduction of new topics and some deletions, to take into account the changing priorities in environmental analysis.

    pdf589p wikikhtn 02-04-2012 115 40   Download

  • This volume is an update of the book, Soil Sampling and Methods of Analysis, first published in 1993. The aims of this second edition remain the same as those of the earlier edition—to provide a compilation of soil analytical and sampling methods that are commonly used, straightforward, and relatively easy to use. The materials and procedures for these methods are presented with sufficient detail and information, along with key references, to characterize the potential and limitation of each method....

    pdf1240p 951628473 07-05-2012 159 31   Download

  • The study of earthquakes combines science, technology and expertise in infrastructure and engineering in an effort to minimize human and material losses when their occurrence is inevitable. This book is devoted to various aspects of earthquake research and analysis, from theoretical advances to practical applications. Different sections are dedicated to ground motion studies and seismic site characterization, with regard to mitigation of the risk from earthquake and ensuring the safety of the buildings under earthquake loading.

    pdf392p cucdai_1 16-10-2012 45 14   Download

  • Introduction: Diazine and triazine herbicides are being widely used in the world. These herbicides inhibit the electron-transport system in the higher plants and thus suppress the photosynthesis, resulting in the herbicidal action. These compounds are also important as pollutants for crops, soil and groundwater [1, 2]. The attention is usually directed toward chronic toxicities of the herbicides [3].

    pdf8p bigbaby87 01-09-2010 65 8   Download

  • Introduction: As one of azide salts, lead azide is well known, because it is used as a detonator for air bags of automobiles. Recently, sodium azide has been frequently used for suicides and homicidal attempts. In this chapter, therefore, analytical methods are described only for sodium azide. Sodium azidea is being well used as an antiseptic (preservative)b in biochemical researches and as a material for synthesis of organic compounds.

    pdf8p bigbaby87 01-09-2010 79 8   Download

  • This paper presents the results of soil characteristics study and orientation for rational and sustainable use of major soil types in Thai Thuy District, Thai Binh Province, where is facing many environmental problems. The interactive process between river, sea and human activities over time has resulted in the characteristics of 10 soil types, which are grouped in 4 main classes (acid sulfate soil, saline soil, alluvial soil and sandy soil). They have been used for agricultural production (mainly for rice and other crops growing).

    pdf5p dem_thanh 22-12-2012 52 7   Download

  • The fractal analysis is becoming a very useful tool to process obtained data from chaotic systems in geosciences. It can be used to resolve many ambiguities in this domain. This book contains eight chapters showing the recent applications of the fractal/mutifractal analysis in geosciences. Two chapters are devoted to applications of the fractal analysis in climatology, two of them to data of cosmic and solar geomagnetic data from observatories. Four chapters of the book contain some applications of the (multi-) fractal analysis in exploration geophysics.

    pdf182p camchuong_1 04-12-2012 45 5   Download

  • 136 A. Singh et al. 5.2.4 Soil Microcosms One of the simplest methods requiring minimal equipment for soil biodegradation studies is with use of a biometer flask (Bellco, Vineland, NJ, USA). The United Sates Environmental Protection Agency (US EPA) and Organization of Economic Cooperation and Development (OCED) have also recommended this method (OECD 1981; McFarland et al. 1991; Skladany and Baker 1994). Biodegradation activity can be evaluated by directly monitoring the loss of the target compounds or indirectly by measuring by-products of biodegradation or electron acceptor consumption.

    pdf37p longdencachep 19-09-2011 42 4   Download

  • Standard method of test for particle size analysis of soils describes a procedure for the quantitative determination of the distribution of particle sizes in soils. The following applies to all specified limits in this standard: For the purposes of determining conformance with these specifications, an observed value or a calculated value shall be rounded off “to the nearest unit” in the last right-hand place of figures used in expressing the limiting value, in accordance with ASTM E 29. The values stated in SI units are to be regarded as the standard.

    pdf0p tav2011 21-07-2015 58 3   Download

  • Bone Meal: Excellent slow-release source of calcium and phosphorus recommended for bulbs, tomatoes, and other vegetables. Analysis will range from 2-12-0 to 4-12-0 with 2 to 5 percent calcium. Slow release form of calcium and phosphorous. It is used for bulbs, tomatoes, and other vegetables. Analysis will range from 2-12-0 to 4- 12-0 with 2 to 5% calcium. A good calcium and phosphorus source but slower acting and more expensive than soft rock phosphate. Analysis of bone meal will vary from about 2-12-0 to 4-12-0 with 2-5 percent calcium.

    pdf20p cao_can 02-01-2013 36 2   Download

  • In the paper, we will analyze the soil ground data and borehole data obtained in this region to find the specific geological factors which are put into the DeepSoil Program to evaluate local site effects.

    pdf1p truongtien_09 10-04-2018 15 0   Download

  • A fuzzy finite-element method for analysis of laterally loaded pile in multilayer soil with uncertain properties is presented. The finite-element formulation is established using a beam-on-two-parameter foundation model. Uncertainty propagation of the soil parameters to the pile response is evaluated by a perturbation technique. This approach requires a few number of classical finite-element equations to be solved and provides reasonable results. A comparison with vertex method is made in a numerical example.

    pdf0p thienthanquydu 19-10-2018 14 0   Download

  • The measurements of crack parameters for clay mineral soils show that area and width of cracks in case of Bentonite are much larger than those while length of cracks appears to be slightly less than that in other cases. Number of cracks in case of Bentonite are smaller than those in cases of Kaolinite and Illite. Additionally, compared with Illite, area, length and width of cracks in case of Kaolinite are slightly larger while the other crack parameters seem to be same.

    pdf8p everydaywish 24-12-2018 8 0   Download

  • Community level physiological profiles (CLPP) and molecular diversity of bacteria in soil under rice–rice (RR), rice–fallow (RF), rice–wheat (RW), legume (LG), mango orchard (MO), and grass land (GL) cropping systems occurring in South West Bengal, India (22°22′N latitude and 86°26′E longitude) were studied.

    pdf7p vimb123 11-01-2019 10 0   Download

  • Broad interest in reducing greenhouse gas emissions requires a better understanding of controls on carbon dioxide (CO2) release under different agricultural management practices. The objective of this study was to investigate and model seasonal variation of soil CO2 emissions from an apple orchard field (Malus domestica L. ‘Starkrimson’).

    pdf18p vimb123 11-01-2019 5 0   Download

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