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Dissertations / Theses on the topic 'Soil micromorphology'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 July 2024

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1

Hartley, Paul Evan. "Genesis, mineralogy, and micromorphology of vertic soils in southeastern Kansas." Thesis, Manhattan, Kan. : Kansas State University, 2010. http://hdl.handle.net/2097/4025.

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2

Shu, Xin. "The mechanisms underlying the resistance and resilience of soil carbon and nitrogen cycling to environmental stresses." Thesis, University of Aberdeen, 2018. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=237673.

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Cycling of nutrients, such as Carbon (C) and Nitrogen (N), is one of the most important soil functions and is strongly related to the composition of the soil microbial community. However, soil is increasingly under environmental pressures that threaten its ecological functions and sustainability. To maintain soil functional sustainability, it is important to understand how soil withstands environmental stresses (subsequently referred to as resistance) and recovers from stresses (subsequently referred to as resilience). This study focused on the resistance and resilience of C and N processes an

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3

White, Thomas Leslie Carleton University Dissertation Geology. "Cryogenic alteration of a frost susceptible soil." Ottawa, 1992.

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4

Wearing, Cameron. "Sodicity and soil microstructure /." [St. Lucia, Qld.], 2005. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18523.pdf.

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5

Kirk, Alastair James. "Relationships between sediment, moisture and soil crust characteristics in arid environments." Thesis, Durham University, 1997. http://etheses.dur.ac.uk/1051/.

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From a geomorphological point of view, and environments are characterised by complex process interactions and suites of landforms which can be sensitive to their controlling parameters. Relationships between sediment, moisture and soil crust characteristics are no exception. Field research and a programme of laboratory study were undertaken between 1993 and 1995 on the soils of the northern Badia of Jordan to advance knowledge on aspects of and zone soil dynamics, with a particular emphasis on crusting. The research focuses primarily on the effect soil crusts have upon the equilibrium of sedim

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6

Inglis, Robyn Helen. "Human occupation and changing environments during the Middle to Later Stone Ages : soil micromorphology at the Haua Fteah, Libya." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610688.

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7

White, Thomas Leslie Carleton University Dissertation Earth Sciences. "Cryogenic alteration of clay and silt soil microstructure implications for geotechnical properties." Ottawa, 1996.

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8

Acott, Timothy G. "Soil micromorphology and image analysis : a study of Bronze Age to recently improved soils at Lairg, Sutherland, Scotland." Thesis, University of Stirling, 1993. http://hdl.handle.net/1893/1784.

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The applications of multispectral and morphometric image analysis to soil thin section descriptions is examined. It is shown that unsupervised classification and contrast stretching can be used to enhance and label features of interest. Morphometric measurements, allow the shape and abundance of features in thin sections to be compared and statistical relationships established. This method of analysis offers a precision beyond that which is possible using a qualitative approach. Using soil micromorphology as the main analytical technique a case study was carried out to evaluate the applicabili

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9

Lewis, Helen. "The characterisation and interpretation of ancient tillage practices through soil micromorphology : a methodological study." Thesis, University of Cambridge, 1998. https://www.repository.cam.ac.uk/handle/1810/272688.

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10

Spring, Christian Alexander. "The effects of earthworms on soil structure in an upland grassland." Thesis, University of Stirling, 2003. http://hdl.handle.net/1893/3538.

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As Charles Darwin first noted in 1881, earthworms through their burrowing and casting activities, play an important role in the creation and maintenance of soil structure. Burrowing activity leads to the reorganisation of voids and creation of macropores within the soil. This has implications for aeration and the flow properties of water through soils. Casting activity affects the structural stability of soil through the stabilisation of aggregates. The overall aim of this research project has been to investigate the effects of earthworm activity and diversity on void space and aggregation in

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11

Pears, Ben. "The nature, distribution and significance of amended and anthropogenic soils on old arable farms and the elemental analysis of black carbonised particles." Thesis, University of Stirling, 2009. http://hdl.handle.net/1893/2291.

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Ever since the development of farming humans have been implicitly linked with the landscape. Influences include the manipulation of natural environments by woodland clearance, field developments and animal husbandry. Development can also be determined by the identification and distribution of soils developed and modified by the addition of organic and inorganic components. Anthropogenic or amended soils have been identified in many forms across north west Europe that retain distinctive physical and chemical indications of historical agrarian and settlement history. This thesis researched the o

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12

Segerholm, Kristoffer. "Wood Plastic Composites made from Modified Wood : Aspects on Moisture Sorption, Micromorphology and Durability." Licentiate thesis, Stockholm : Div. of Bulding Materials, Dept. of Civil and Architecturel Engineering, School of Architecture and the Built Environment, Royal Institute of Technlogy (KTH), 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4582.

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13

Smith, Katie Elizabeth. "The nature, distribution and significance of organic carbon within structurally intact soils contrasting in total SOC content." Thesis, University of Stirling, 2010. http://hdl.handle.net/1893/2915.

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Soil structure influences many chemical, biological and physical processes and it is well established that organic carbon acts as a soil binding agent. However, the precise location of organic matter and carbon in relation to structural features within intact samples is unknown. The sensitivity of organic carbon to decomposition is dependent not only upon its intrinsic chemical recalcitrance, but also its location within the soil structure. Soil structure provides organic carbon with chemical and physical protection, the extent of which varies between structural units. Furthermore soil structu

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14

Tams, Adrian R. "Soil micromorphology of archaeological deposits, wih particular reference to floor surfaces on settlement sites in the Western Isles, Scotland." Thesis, University of Edinburgh, 2003. http://hdl.handle.net/1842/27504.

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The research is concerned with the analysis of four field identified floors from three multi-period archaeological sites (Bostadh Beach, Isle of Lewis, Cladh Hallan and Bornais, South Uist) in the Western Isles, Scotland. The method employed in the analysis of these four floors is soil micromorphology, a technique that is now established in archaeological analysis, but one that has been seldom applied to deposits in the Western Isles. In particular, the application of the technique to floor sequences in the Western Isles is unique, given that floors have rarely been analysed or even substantia

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15

Chrystall, Fiona H. "Examination of the relationship between the form and function of medieval or later field systems in Scotland using soil micromorphology." Thesis, University of Stirling, 1998. http://hdl.handle.net/1893/21582.

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A possible relationship between the form and function of medieval or later field systems in Scotland is tested using soil micromorphology and quantitative analysis techniques. Existing survey data is used to develop a classification system of six medieval or later field systems in Scotland. The topsoils of two abandoned field systems are sampled from field units representing the range of field classes identified during the field system classification of each site. Soil micromorphology is used to identify existing micromorphological evidence of past anthropogenic influences in these soils. Two

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16

ALMEIDA, Alison Van Der Linden de. "Caracterização morfológica, química e físico-hídrica de neossolos regolíticos no agreste meridional de Pernambuco." Universidade Federal Rural de Pernambuco, 2014. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6138.

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Submitted by (edna.saturno@ufrpe.br) on 2016-12-14T15:53:11Z No. of bitstreams: 1 Alison Van Der Linden de Almeida.pdf: 1873549 bytes, checksum: d2a79be9c753493a5173b287d1cdc143 (MD5)<br>Made available in DSpace on 2016-12-14T15:53:11Z (GMT). No. of bitstreams: 1 Alison Van Der Linden de Almeida.pdf: 1873549 bytes, checksum: d2a79be9c753493a5173b287d1cdc143 (MD5) Previous issue date: 2014-07-08<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>In the meridional agreste of Pernambuco, the Regolithic Neosoil are used in various agricultural activities, which includes

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17

Mariani, G. S. "THE ROLE OF PALEOSOLS IN PALEOENVIRONMENTAL STUDIES: GENESIS AND DEVELOPMENT OF APENNINE MOUNTAIN SOILS DURING THE HOLOCENE." Doctoral thesis, Università degli Studi di Milano, 2016. http://hdl.handle.net/2434/359464.

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The aim of this research is to conduct an investigation on the soils, paleosols and landforms of the area of Mt Cusna ridge (Northern Apennines - Italy) in order to define the relationship between geomorphic evolution and soil development, to characterise the main pedogenetic processes and factors acting on soils in past and present times, and to provide new information to understanding the Holocene climatic variations in the area. For this purpose, several sets of field, laboratory and microscopic analyses were carried out. A comprehensive survey of the study area allowed the production of a

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18

Lima, Herdjania Veras de. "Identificação e caracterização do comportamento físico de solos coesos no estado do Ceará." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/11/11140/tde-25052004-172247/.

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Os solos coesos ocorrem por quase toda a faixa litorânea brasileira ocupada pelos Tabuleiros Costeiros, e caracterizam-se por apresentar um incremento acentuado na sua resistência, a qual causa restrições no seu preparo e no crescimento das plantas. Isso ocorre devido ao mesmo apresentar-se duro a extremamente duro, quando seco e friável quando úmido. Dentre os Estados da região nordeste que possuem uma extensa área litorânea ocupada pelos Tabuleiros está o Ceará, com mais de 10.000 km2 ocupados por solos que podem ser enquadrados dentro do contexto de solos coesos. Com isso levantou-se a hipó

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19

Castilho, Selene Cristina de Pierri. "Influência da transformação floresta - pastagem nos atributos do solo em área de agricultura familiar no oeste do Estado do Pará." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/11/11140/tde-12082014-145724/.

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O crescente número de assentamentos na região Amazônica vem despertando discussões sobre sua importância no desmatamento da região, visto que a implantação dos assentamentos é sucedida pelo desmatamento e implantação de pastagens, modificando as condições químicas, físicas e biológicas do solo. O presente trabalho tem como hipóteses que 1 - a mudança de uso do solo de floresta para pastagem afeta negativamente os atributos físicos e químicos do solo; 2 - a mudança de uso do solo de floresta para pastagem reduz a abundância e diversidade da fauna do solo; 3 - As alterações nas condições físico-

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20

Grisotto, Daniel Carmignani. "Evolução da estrutura do solo em cana-de-açúcar sob sistema de preparo por canteirização." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/11/11140/tde-10102018-121137/.

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Estudos sobre de métodos de preparo de solo são essenciais pela necessidade em se reduzir os impactos nos solos, decorrentes da intensificação da mecanização agrícola na cultura da cana-de-açúcar e pela busca de modelos que visem proporcionar uma maior qualidade para o solo e, consequentemente, a obtenção de melhores desenvolvimentos vegetativos e maiores produtividades. O presente trabalho teve como principal objetivo, a avaliação por meio de análises micromorfométricas, das alterações na estrutura do solo decorrentes de métodos distintos de preparo de solo. Foram avaliados o preparo convenci

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21

Cluett, Jonathan Paul. "Soil and sediment-based cultural records and The Heart of Neolithic Orkney World Heritage Site buffer zones." Thesis, University of Stirling, 2007. http://hdl.handle.net/1893/357.

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The designation of World Heritage Sites (WHS) by UNESCO is the principal international and formally recognised strategy allowing the conservation of sites of outstanding cultural value throughout the world. This study demonstrates that soils and sediments influenced by cultural activities retain cultural records (soils and sediments-based cultural records, hereafter abbreviated to SSBCR) associated with WHS, and further the understanding and contribute to the cultural value of WHS. Considering The Heart of Neolithic Orkney WHS and its surrounding landscape as the study location, systematic fie

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22

Rosa, Jaqueline Dalla. "Dinâmica da formação de crostas superficiais em função de práticas de preparo do solo e chuva simulada." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/11/11140/tde-20092012-154056/.

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As crostas são o resultado da degradação da estrutura superficial dos solos, favorecem a erosão e a degradação ambiental dos solos. Este estudo avaloiu a dinâmica da formação de crostas superficiais e as consequencias sobre a porosidade, condutividade hidráulica (K), retenção de água, densidade (Ds) e a rugosidade de um Argissolo Vermelho amarelo conduzido com diferentes sistemas de preparo do solo e aplicação de lâminas de chuva simulada. Avaliou-se também, através de um experimento em laboratório, os processos envolvidos na quebra dos agregados, sob chuvas simuladas. O experimento foi conduz

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23

Turner, Valerie Erica. "Location, form and function in Shetland's prehistoric field systems." Thesis, University of Stirling, 2012. http://hdl.handle.net/1893/12660.

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Shetland boasts exceptionally well-preserved, but largely overlooked, field systems spanning a period of approximately 4000 years (Neolithic/Bronze Age – Viking/Norse). These have the potential to vastly increase our understanding of past agricultural practices and life styles. This study uses topographical survey, Shape Analysis, GIS, soil survey and micromorphology to answer questions relating to their location, form and function/management, pioneering the use of new tools and testing current models. An holistic landscape approach to the field systems is developed and tested against a multi-

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24

Onfray, Marylise. "Du sol à la reconstitution de l'espace habité : géoarchéologie des modes d'occupation de la fin du Néolitique (3600-2250 av. n.-è.) dans le Sud-Ouest du Bassin parisien." Thesis, Paris 1, 2017. http://www.theses.fr/2017PA01H091.

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Considéré comme la matérialité de l’espace, le sol est un élément déterminant en archéologie pour la compréhension de l’habitat. Au regard « de l’absence » des sols néolithiques, les recherches sur l’habitat dans le Nord de la France sont basées sur les structures en creux. Pour la fin du Néolithique, ceci est un problème puisque seuls quelques plans de bâtiments sont connus et les fréquents sites peu stratifiés à concentrations de mobilier sont peu documentés. Dans trois quarts des cas, les attributs du mobilier (à plat, domestique…) suggèreraient des sols d’occupation préservés, et donc des

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25

Compostella, C. "PALEOSUOLI ED ALTRI ARCHIVI PALEOAMBIENTALI PER LA RICOSTRUZIONE DELLE FLUTTUAZIONI OLOCENICHE DELLA TREELINE ALPINA E APPENNINICA." Doctoral thesis, Università degli Studi di Milano, 2012. http://hdl.handle.net/2434/169981.

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The aim of this research is the reconstruction of Holocene environmental changes at the treeline in three study areas along a gradient from continental to oceanic climate; the study was carried out in two areas in the Central Italian Alps (Valtellina and Val Camonica) and in one in the Northern Apennines (Mt. Cusna area). To outline the complex interactions between soil, vegetation, climate and human activity, a multidisciplinary approach was necessary, combining pedological and paleopedological investigation, soil micromorphology, pedoanthracology, macroremains analysis and dendrochronology.

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26

Barclay, Rebecca. "Formation, cultural use and management of Icelandic wet meadows : a palaeoenvironmental interpretation." Thesis, University of Stirling, 2016. http://hdl.handle.net/1893/24823.

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This thesis offers the first detailed palaeoenvironmental analysis of wetland areas within sub-Arctic enclosed homefield’s. Significance of meadows were previously mentioned only briefly in the literature, suggesting influences in settlement site selection as well as importance in quality fodder production, producing up to two thirds of total hay resources in a somewhat marginal agricultural landscape. Given the importance of hay resources in Iceland it seems unusual these areas have received so little attention to date, despite extensive research on all other aspects of the Norse farm system.

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27

McKenzie, Joanne T. "Deep anthropogenic topsoils in Scotland : a geoarchaeological and historical investigation into distribution, character and conservation under modern land cover." Thesis, University of Stirling, 2006. http://hdl.handle.net/1893/203.

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Deep anthropogenic topsoils – those augmented through long-term additions of mineral bulk among fertilising agents – retain in both their physical and chemical make-up significant indicators for cultural activity. This project researched the geographical distribution and historical context of deep anthropogenic topsoils in Scotland and the Isles, and used this information to investigate the impact of current land cover upon the cultural information they retain. In so doing, the project investigated the potential for conservation of this significant cultural resource. A review of the historical

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28

Gilliland, Krista. "Irrigation and persistence in the dry zone of Sri Lanka : a geoarchaeological study." Thesis, University of Stirling, 2011. http://hdl.handle.net/1893/3681.

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This thesis presents an independent, sediment-based record of landscape change within an agricultural hinterland. Established historical and archaeological sequences document the primary occupation of Anuradhapura, Sri Lanka’s ancient capital, beginning ca. 400 BC and lasting until it was largely abandoned in AD 1017. Anuradhapura is located in the island’s dry zone, which depends almost completely on the unpredictable Northeastern Monsoon for water. Oral history and historical narratives have long held that large-scale irrigated rice cultivation took place in the hinterland to produce an agri

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Shahid, S. A. "Studies on the micromorphology of salt-affected soils in Pakistan." Thesis, Bangor University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233941.

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30

Toma, Raul Shiso. "Efeito da aplicação de composto orgânico sobre o processo de encrostamento e a recuperação de solos degradados pela erosão hídrica." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/11/11140/tde-17072008-175406/.

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A geração de resíduos orgânicos juntamente com a erosão, são dois grandes problemas ambientais mundiais. São responsáveis pela redução da produtividade agrícola e pelos altos impactos ambientais. O presente projeto teve como objetivo a utilização de resíduos orgânicos gerados na agropecuária, na forma de composto orgânico, para a recuperação de áreas degradadas pela erosão hídrica. Foram avaliados os efeitos de quatro doses de composto (0, 20, 40 e 100 Mg.ha-1) na recuperação dos solos degradados por erosão. Somado a isto foi também avaliado o efeito da dose de composto sobre o processo de enc

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31

Eddargach, Wassel. "Dynamique d'occupation des sols au Capsien et au Néolithique au Maghreb oriental : approche géoarchéologique des Rammadiyat." Thesis, Paris 1, 2018. http://www.theses.fr/2018PA01H096/document.

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L’approche géoarchéologique a pour objectif de discuter l’intérêt des archives sédimentaires des rammadiyat pour appréhender les dynamiques d’occupation des sols au Capsien et Néolithique. Les rammadiyat se présentent sous forme de monticules dont la stratigraphie est peu exprimée. Les fouilles récentes ont mis en évidence des sols d’occupation renouvelant les questionnements sur les modes d’occupation de ces populations capsiennes. L’approche géoarchéologique repose sur la micromorphologie des sols. Elle a été menée sur 5 sites capsiens de Tunisie et d’Algérie. Elle a permis de caractériser l

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32

Scholtès, Antoine. "2000 ans d'agropastoralisme sur les Hautes-Chaumes des Monts du Forez (Massif Central oriental, France) : Occupation du sol, gestion des territoires et changements environnementaux de l'Antiquité au XVIIIe siècle." Thesis, Lyon, 2020. http://www.theses.fr/2020LYSES037.

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Ce travail de thèse s’attache à identifier et à caractériser les rythmes et dynamiques agropastorales sur les Hautes-Chaumes du Forez. Cette thématique est liée à l’appréciation des modalités socio-économiques de l’estive telle qu’elle est pratiquée par les communautés montagnardes depuis 2000 ans. Appréhender les rouages de cette activité et son implication environnementale a nécessité de privilégier une approche systémique et diachronique. Par ce moyen, il a été possible d’intégrer la problématique des interactions sociétés-milieu à une approche purement archéologique de l’occupation du sol.

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Gutierrez, Nelcí Helena Maia. "Influências de aspectos estruturais no colapso de solos do norte do Paraná." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/18/18132/tde-28042006-095725/.

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Este trabalho tem como objetivo avaliar o comportamento colapsível, sob o aspecto estrutural, de três perfis de solos tropicais típicos, que ocorrem na região norte do Paraná e que podem ser considerados representativos do território brasileiro. Dois desses perfis são classificados pela pedologia como Latossolos Vermelhos, um de textura argilosa e outro de textura média e o terceiro perfil, de textura argilosa, como Nitossolo Vermelho. Tem por objetivo, também, em função da abordagem pedológica adotada para a caracterização dos solos, poder associar comportamentos característicos observados pa

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34

Ama, Tamia Joséphine. "Modifications physiques d'un sol ferrallitique sous différents modes de mise en culture en Côte d'Ivoire forestière : conséquences sur le développement du maïs." Paris 12, 1997. http://www.theses.fr/1997PA120034.

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Cette etude s'efforce de preciser la nature et l'importance des effets de trois modes de defrichement de foret (traditionnel, semi-mecanise, mecanise) et trois types de travail du sol (sans labour, labour superficiel, labour profond), les plus courants, sur les modifications de l'etat du sol et sur le developpement d'une culture de mais, apres quatre annees de culture sur sol ferrallitique en basse cote d'ivoire. L'etude est conduite de facon stratifiee, avec trois principaux niveaux d'analyse : parcelle, zones de differenciations intraparcellaires (zip) et profil cultural. Elle privilegie l'a

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35

Li, Zhong-Sen. "Etudes des propriétés hydromécaniques des sols argileux non saturés proches de la saturation." Thesis, Châtenay-Malabry, Ecole centrale de Paris, 2015. http://www.theses.fr/2015ECAP0023/document.

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Cette thèse présente un ensemble de résultats expérimentaux sur une argile remaniée non saturée proche de la saturation, dont le degré de saturation est généralement supérieur à 70%.Après une série d’essais de caractérisation physique et mécanique du matériau, plusieurs méthodes expérimentales ont été utilisées pour étudier le comportement et certaines pathologies du sol compacté telles que l’orniérage et le matelassage.Une étude systématique du comportement du sol compacté sur chemins de drainage-humidification dans différents états initiaux a été effectuée, complétée par des mesures de succi

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Green, Heather F. "Casting no shadow : overlapping soilscapes of European-Indigenous interaction in northern Sweden." Thesis, University of Stirling, 2012. http://hdl.handle.net/1893/13133.

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The Sámi’s past activities have been documented historically from a European perspective, and more recently from an anthropological viewpoint, giving a generalised observation of the Sámi, during the study period of AD200-AD1800, as semi-nomadic hunter gatherers, with several theories suggesting that interaction with Europeans, through trade, led to the adoption of European activities by certain groups of the Sámi (Eiermann, 1923; Paine, 1957; Manker and Vorren, 1962; Bratrein, 1981; Mathiesen et al, 1981; Meriot, 1984). However, there is almost no information on the impact the Sámi had on the

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37

Parry, Stéphanie. "Influence de la structure et des matières organiques particulières sur l'anoxie et la dénitrification à l'échelle de la motte de sol." Lyon 1, 1999. http://www.theses.fr/1999LYO10028.

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Afin d'etudier l'influence de la structure des mottes de sol et des matieres organiques particulaires sur la denitrification, une etude comparative a ete realisee sur un sol sous prairie et sous culture. Pour chaque traitement, la denitrification a ete estimee sur 100 mottes intactes. La structure du sol a ete observee sur des sections de mottes. Les activites microbiennes respiratoire maximale et denitrifiante potentielle ont ete mesurees au niveau des matieres organiques particulaires (c-pom) ainsi qu'au niveau du reste du sol (matrice). Un modele mecaniste stochastique prenant en compte les

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Vissac, Carole. "Les terres rapportées dans les jardins du XVIe au XIXe siècles : caractérisation de l'impact anthropique à différentes échelles d'organisation du sol." Angers, 2002. http://www.theses.fr/2002ANGE0040.

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L'archéologie des jardins a débuté en France dans les années quatre vingt dix. Elle s'intéresse dorénavant à l'importance des terres rapportées dans la création des jardins datés du XVIe au XIXe siècles. Les sols des jardins sont des anthroposols développés par l'accumulation de dépôts à vocation esthétique ou culturale. L'objectif de ce travail est d'étudier le sol à différentes échelles d'observations pour identifier une activité de jardin. Ces recherches nécessitent plusieurs méthodes de sciences du sol. Des prospections géophysiques, la micromorphologie des sols, l'analyse d'image, des ana

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Reis, Aline Mari Huf dos. "MICROMORFOLOGIA E FUNÇÕES HIDRÁULICO-ENERGÉTICAS NA ANÁLISE ESTRUTURAL DO SOLO SOB SISTEMA INTEGRADO DE PRODUÇÃO AGROPECUÁRIA." Universidade Estadual de Ponta Grossa, 2017. http://tede2.uepg.br/jspui/handle/prefix/2504.

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Submitted by Angela Maria de Oliveira (amolivei@uepg.br) on 2018-05-16T17:53:35Z No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) Aline Mari Huf dos Reis.pdf: 1459689 bytes, checksum: 15ab2a456dc1f7dd0fdb899ef82f4d56 (MD5)<br>Made available in DSpace on 2018-05-16T17:53:35Z (GMT). No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) Aline Mari Huf dos Reis.pdf: 1459689 bytes, checksum: 15ab2a456dc1f7dd0fdb899ef82f4d56 (MD5) Previous issue date: 2017-07-14<br>A utilização de técnicas alternativas para a anál

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Crispim, Flavio Alessandro. "Compactação de solos: influência de métodos e de parâmetros de compactação na estrutura dos solos." Universidade Federal de Viçosa, 2007. http://locus.ufv.br/handle/123456789/3849.

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Made available in DSpace on 2015-03-26T13:28:41Z (GMT). No. of bitstreams: 1 texto completo.pdf: 983693 bytes, checksum: 1ff7ce64df230d8111f225afb23dbd33 (MD5) Previous issue date: 2007-03-19<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Commonly, compaction of soil specimens in laboratory is processed by dynamic (Proctor test) or static (application of constant tension to the soil) compaction tests, being common to associate similar compaction curves to both procedures. However, data from studies developed in the Civil Engineering Laboratory of the Universidade Federal

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Bouanani, Fatiha. "Etude en champ et en conditions controlées de la minéralisation de l'azote et des modifications de l'organisation du sol, après apport de matières organiques issues de déchets urbains et agricoles." Aix-Marseille 1, 2001. http://www.theses.fr/2001AIX11014.

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Les connaissances liées aux épandages de matière organique d'origine anthropique étant limitées, des essais en champ, en lysimètres sous serre et en incubation, ont été menés afin de connaître les effets de divers apports (boues brutes, lisier de porcs, compost de boue et compost d'ordures ménagères) sur la minéralisation de l'azote, les rendements d'une culture de blé et les modifications de l'organisation du sol. L'étude de l'impact des épandages de matière organique en grande culture sous climat méditerranéen met en évidence les modifications des propriétés physiques et chimiques des sols,

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Angue, Abane Monique. "Biodynamique des humus et cycles biogéochimiques des éléments dans des sites forestiers et des sites cultivés en cacaoyers du centre-sud Cameroun (réfion d'Akongo)." Nancy 1, 1988. http://www.theses.fr/1988NAN10246.

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On se propose d'étudier l'influence de la roche-mère sur l'orientation de la biodynamique des horizons organo-minéraux superficiels et sur le bilan biogéochimique des éléments minéraux, ainsi que les modifications apportées par la culture du cacaoyer dans la biodynamique des humus forestiers. On effectue des observations morphologiques, micromorphologiques et ultrastructruales de l'organisation des horizons A#1 et A#1#1 et des différentes activités biologiques intervenant dans la transformation des litières et dans la structuration de l'horizon. Les méthodes d'étude des matières organiques son

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Wu, Zheng Dong, and 吳正棟. "Soil properties, micromorphology and genesis of two forest soils with placic horizon in Taiwan." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/52107634176592240429.

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Gargiulo, Laura. "Insight into the mechanisms of soil structure formation: an experimental approach using soil micromorphology and image analysis." Tesi di dottorato, 2011. http://www.fedoa.unina.it/8877/1/Gargiulo_Laura_24.pdf.

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The importance of soil structure for terrestrial ecosystems is well known. A large bulk of scientific literature addresses factors influencing soil structure and soil pore development, but little is still known concerning the underlying physical mechanisms of their action. The aim of this thesis was to investigate mechanisms of soil pore development by means an experimental approach using soil 2D image analysis and standard soil micromorphology. In this work the chapters are organized as collection of scientific papers. After the first introductory chapter, the second one investigates some pro

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Adewumi, Opeyemi Lateef. "Soil micromorphology of the sedimentary samples from Anta 1 de Vale da Lage, Tomar, Portugal." Master's thesis, 2019. http://hdl.handle.net/10400.26/31618.

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This master thesis is based on the soil micromorphological study of the sedimentary samples from Anta 1 de Vale da Laje site, located in Tomar, Portugal. The site of Anta 1 de Vale da Laje is one of the sites currently under study within the research framework of the projects Landscape occupation strategies during the Holocene in the Middle Tagus (Es.Ter.Tejo) and Moving tasks across shapes: the agro-pastoralists spread from and into the Alto Ribatejo (MTAS). Asides the stratigraphic problems of the site, it remained unclear the modification successions in time, of the monument and the process

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Hsu, Meng-Ku, and 徐夢谷. "The mechanical property and micromorphology of DLC films deposited on different substrates with various SiTixOyCz hybrid composite interlayers prepared by sol-gel technique." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/76428907518254174154.

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碩士<br>國立臺灣海洋大學<br>機械與機電工程學系<br>103<br>In this study, titania-silica composite films were deposited on Ti6Al4V and 6 wt.% cobalt-contained cemented tungsten carbide substrate by sol-gel dip coating technique. The compositions of the composite films were changes by adjusting the Ti/Si ratios of the precursor solutions and, then sintered at 300 ℃ under an argon gas atmosphere (99.99 % oxygen-containing 9 ppm). After the coating of the titania-silica composite film, an outmost diamond-like carbon (DLC) film was deposited by using a radio frequency plasma enhanced chemical vapor deposition system.

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