Dissertations / Theses on the topic 'Forest mining'
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com, ronaldchapman1@bigpond, and Ron Chapman. "Fighting for the Forests: A History of The Western Australian Forest Protest Movement 1895-2001." Murdoch University, 2008. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20090121.162055.
Full textMehlhope, Stephanie H. "MODELING BEDROCK MINING HOTSPOTS WITHIN THE OUACHITA NATIONAL FOREST, ARKANSAS." UKnowledge, 2013. http://uknowledge.uky.edu/geography_etds/3.
Full textKalamandeen, Michelle. "Forest loss dynamics and impacts from gold mining in Amazonia." Thesis, University of Leeds, 2019. http://etheses.whiterose.ac.uk/22904/.
Full textMacKinnon, Richard Kyle. "Seeing the forest for the trees: tree-based uncertain frequent pattern mining." Springer International Publishing, 2014. http://hdl.handle.net/1993/31059.
Full textFebruary 2016
Dement, Wesley T. "AN INVESTIGATION OF TREE GROWTH AND WOODY VEGETATION COLONIZATION ON A 19 YEAR-OLD FORESTRY RECLAMATION SITE." UKnowledge, 2017. https://uknowledge.uky.edu/forestry_etds/37.
Full textLuud, Aarne. "Evaluation of moose habitats and forest reclamation in Estonian oil shale mining areas /." Online version, 2006. http://dspace.utlib.ee/dspace/bitstream/10062/684/5/luudaarne.pdf.
Full textOliveira, Leandro de. "Soil recuperation in forest settlements in mining areas in the Tremembé municipality - SP." Universidade de Taubaté, 2006. http://www.bdtd.unitau.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=77.
Full textA recuperação de áreas degradadas devido à exploração mineraria, notadamente pela extração de areia, é realizada pela recomposição florestal com espécies nativas. No presente trabalho analisou-se a disponibilidade de nutrientes e a quantidade de serapilheira acumulada em um fragmento de mata ciliar nativa e em cinco fragmentos de recomposição florestal de áreas anteriormente utilizadas para exploração de areia no município de Tremembé, SP. Estas áreas apresentam-se em processo de desenvolvimento vegetativo com períodos diferentes, variando de 1,5 a 11 anos. Foi analisado o teor de nutrientes, matéria orgânica, acidez do solo e a produção da serapilheira total e fracionada em folhas, ramos e raízes. As serapilheira foi amostrada em parcelas de 1m2, nas camadas 0-20 e 20-40 cm em cinco pontos escolhidos aleatoriamente nas leiras e entre leiras, em todas as áreas. Nas amostras de solo analisaram-se os atributos pH, matéria orgânica, Fósforo, Potássio, Cálcio, Magnésio, Hidrogênio, Alumínio, soma de bases, capacidade de troca catiônica e porcentagem de saturação de base. A comparação da produção de serapilheira e dos atributos químicos entre as áreas foi analisada por meio de análise de variância complementada pelo teste de Tukey. Observou-se menor produção de serapilheira total nos fragmentos a partir de 6,5 anos de reflorestamento. Entretanto, a partir deste período, a relação entre o teor de matéria orgânica e a quantidade de serapilheira da camada superficial do solo tende a diferir, com aumento no teor de matéria orgânica e redução da produção de serapilheira, decorrente, possivelmente, do efeito acumulativo da matéria orgânica no solo através de compostos orgânicos mais resistentes à decomposição responsáveis pela formação do húmus. Por meio das análises dos atributos químicos, os solos dos fragmentos florestais foram classificados como distróficos e de fertilidade moderada. Os teores dos nutrientes apresentaram valores médios para cálcio e magnésio, alto para o fósforo e baixo para o potássio. Os valores mais elevados de cálcio, magnésio e fósforo podem ser decorrentes do efeito residual da adubação realizada na época do plantio.
Adriansson, Nils, and Ingrid Mattsson. "Forecasting GDP Growth, or How Can Random Forests Improve Predictions in Economics?" Thesis, Uppsala universitet, Statistiska institutionen, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-243028.
Full textJohansson, Filip, and Jesper Wikström. "Result Prediction by Mining Replays in Dota 2." Thesis, Blekinge Tekniska Högskola, Institutionen för datalogi och datorsystemteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-2288.
Full textLinusson, Henrik, Robin Rudenwall, and Andreas Olausson. "Random forest och glesa datarespresentationer." Thesis, Högskolan i Borås, Institutionen Handels- och IT-högskolan, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-16672.
Full textProgram: Systemarkitekturutbildningen
Halmann, Marju. "Email Mining Classifier : The empirical study on combining the topic modelling with Random Forest classification." Thesis, Högskolan i Skövde, Institutionen för informationsteknologi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-14710.
Full textJones, Andy Thomas. "Site Quality Classification for Mapping Forest Productivity Potential on Mine Soils in the Appalachian Coalfield Region." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/33355.
Full textMaster of Science
Aldous, P. J. "The groundwater geology of an abandoned coal mined aquifer : a case study from the Forest of Dean coalfield." Thesis, University of Bristol, 1987. http://hdl.handle.net/1983/62066205-5e54-45a2-9dee-6cdc47103516.
Full textKazar, Sheila A. "Surface mines as landscape features contrasting microclimate and forest composition among open, edge, and interior /." Morgantown, W. Va. : [West Virginia University Libraries], 2003. http://etd.wvu.edu/templates/showETD.cfm?recnum=3149.
Full textTitle from document title page. Document formatted into pages; contains vii, 56 p. : ill. (some col.), maps (some col.). Vita. Includes abstract. Includes bibliographical references (p. 50-55).
Andrews, Jeffrey Adam. "Soil productivity model to assess forest site quality on reclaimed surface mines." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-09052009-040211/.
Full textTaalab, Khaled Paul. "Modelling soil bulk density using data-mining and expert knowledge." Thesis, Cranfield University, 2013. http://dspace.lib.cranfield.ac.uk/handle/1826/8273.
Full textNasution, Zaid Perdana. "Forest conservation, mining and local responses : drawing the boundaries in Batang Gadis National Park, North Sumatra, Indonesia." Thesis, University of Leeds, 2018. http://etheses.whiterose.ac.uk/19809/.
Full textElagamy, Mazen Nabil. "Stock Market Random Forest-Text Mining (SMRF-TM) approach to analyse critical indicators of stock market movements." Thesis, Staffordshire University, 2017. http://eprints.staffs.ac.uk/4285/.
Full textCook, Shannon R. "The Hydrogeology of an Old Growth Forest with Implications for Defining Impact Zones Associated with Underground Mining." Ohio University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1226165787.
Full textNaji, Adel Ali. "Data Mining for Accurately Estimating Residential Natural Gas Energy Consumption and Savings Using a Random Forest Approach." University of Dayton / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1557422487896673.
Full textWright, Lindsey. "Classifying textual fast food restaurant reviews quantitatively using text mining and supervised machine learning algorithms." Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/honors/451.
Full textLalor, Briony Maree. "An assessment of the recovery of the microbial community in jarrah forest soils after bauxite mining and prescription burning." University of Western Australia. School of Earth and Geographical Sciences, 2009. http://theses.library.uwa.edu.au/adt-WU2010.0037.
Full textBenac, David T. "This land is all terrible rough : a history of access to forest resources in Carter County, Missouri /." free to MU campus, to others for purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p3099609.
Full textFreytag, Sara B. "Effects of Mountaintop Removal Mining on Population Dynamics of Stream Salamanders." UKnowledge, 2016. http://uknowledge.uky.edu/forestry_etds/27.
Full textMoreno, Vanessa de Souza. "Restauração florestal de áreas mineradas de bauxita: é necessário o uso de gramíneas exóticas para o recobrimento inicial do solo?" Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/11/11150/tde-08042015-150943/.
Full textMining profoundly alters natural ecosystems and, although the recovery of these areas is required by law, it is still a major technical challenge. Generally, recovery strategies involve the distribution of surface forest soil, planting of exotic grasses to cover the ground and the planting of exotic and/or native trees. However, the sowing of exotic grasses may restrict native species regeneration, therefore, context specific diagnosis must be carried out to determine the actual need of using such technique. In this context, the aim of this study was to evaluate whether the use of exotic grasses for initial soil covering in the recovery of tropical forests in areas of bauxite mining is necessary, as well as if the restored community has potential to return to the pre-disturbance conditions. Therefore, we use a case study of recovery of bauxite exploration in the Atlantic Forest region of Brazil in Pocos de Caldas, Minas Gerais, where chronosequences of two methods of restoration of bauxite mines were compared - restoration without exotic grasses (Rs) and forest restoration with exotic grasses (Rc) - taking up stretches of native forest ecosystem as a reference. We collected data on tree community structure (grass cover, canopy cover, basal area, and density of individuals CBH ≥3.1 cm and height ≥ 130 cm (1 class) and density of individuals DAP < 3.1 cm and height ≥ 50 cm (class 2) and composition (richness, diversity, evenness and richness and percentage of species by dispersion syndrome). The successional path was analyzed by linear regression. In class 1, the method of forest restoration without exotic grasses (Rs) achieved better results than Rc in key parameters for forest establishment, such as exotic grass cover, canopy cover, richness and diversity. The Rs method also had similar results to Rc in several parameters, despite being represented by younger communities. Both methods showed trends toward the parameters values found in reference ecosystem, but Rs method, if it remain the current way, can reach these values more quickly, which reduces maintenance costs and management. Such evidence shows that the use of exotic grasses for initial covering of mined areas is not necessary in projects aimed at forest restoration of mining areas, as these hinder the restoration of forest dynamics. Additionally, we proved to be possible to recover the bauxite mined areas with more ambitious ecological goals, aiming at the return of pre-disturbance conditions.
Schaaf, Wolfgang. "Development of element cycling in forest ecosystems after anthropogenic disturbances : case studies at long-term atmospheric polluted and post-mining sites /." Cottbus : Brandenburgische Techn. Univ, 2004. http://www.gbv.de/dms/bs/toc/488098432.pdf.
Full textVirkkala, Linda, and Johanna Haglund. "Modelling of patterns between operational data, diagnostic trouble codes and workshop history using big data and machine learning." Thesis, Uppsala universitet, Datalogi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-279823.
Full textBitara, Matúš. "Srovnání heuristických a konvenčních statistických metod v data miningu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-400833.
Full textRodrigue, Jason Adam. "Woody Species Diversity, Forest and Site Productivity, Stumpage Value, and Carbon Sequestration of Forests on Mined Lands Reclaimed Prior to the Passage of the Surface Mining Control and Reclamation Act of 1977." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/35629.
Full textMaster of Science
Costa, Julio César da. "Efeito de alterações do habitat na composição e estrutura da comunidade de aves de sub-bosque no Planalto Paulista, Sudeste do Brasil." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/11/11150/tde-15072008-130253/.
Full textBirds are one of the traditionally studied groups on environmental impact assessments, which seek to understand the effects of human activities on communities and/or populations. This understanding is essential to create guidelines for future enterprises or for planning the use of land, with the objective of mitigating the negative effects of human activities. From this perspective, this work studied two effects at different scales in the understory bird community of the Atlantic Forest in the Planalto Paulista. The first refers to a broad scale, in which there is a gradient of habitat loss in the sampled landscape resulting from various human activities. The second sought to identify the effects of the mining activities in a more delimited scale. The results show that about 50% of the understory bird community shall be affected by habitat loss and reach critical levels of abundance or become extinct in areas with low proportions of forest habitats. On the other hand, about 30% of the species tend to benefit from the habitat loss and increase the size of the population. The species most affected by the loss of habitat are those endemic to the Atlantic Forest and those most sensitive to changes in habitat. The analysis of the distance gradient from the limestone mine has found no significant differences in the richness and abundance of birds and richness and abundance of groups of sensitivity to disturbances in the habitat. That suggests that the mining has no drastic effect in the understory bird community. It is suggested that other aspects of the community, such as reproduction, behaviour, consumption of fruit and seed dispersal may be more appropriate for evaluating the impacts of the mining in the community of birds in the study area. Also, a time series evaluation of the sampled populations\' size might reveal fluctuations resulting from the activities in the mine.
Öberg, Johanna. "Time prediction and process discovery of administration process." Thesis, Uppsala universitet, Institutionen för biologisk grundutbildning, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-432893.
Full textRabeiy, Ragab Elsayed [Verfasser]. "Spatial modeling of heavy metal pollution of forest soils in an historical mining area using geostatistical methods and air despersion modeling / Ragab Elsayed Rabeiy." Clausthal-Zellerfeld : Universitätsbibliothek Clausthal, 2010. http://d-nb.info/1007800925/34.
Full textKwame, Osei Eric. "Machine Learning-based Quality Prediction in the Froth Flotation Process of Mining : Master’s Degree Thesis in Microdata Analysis." Thesis, Högskolan Dalarna, Mikrodataanalys, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:du-31643.
Full textAllen, Jared Seth. "DETERMINING SOUTH MISSISSIPPI FOREST SUSCEPTIBILITY TO WINDTHROW AND SHEAR DAMAGE IN A HURRICANE ENVIRONMENT THROUGH DATA MINING OF METEOROLOGICAL, PHYSIOGRAPHICAL,PEDOLOGICAL, AND TREE LEVEL DATA." MSSTATE, 2009. http://sun.library.msstate.edu/ETD-db/theses/available/etd-08262009-143122/.
Full textMistry, Pritesh. "A Knowledge Based Approach of Toxicity Prediction for Drug Formulation. Modelling Drug Vehicle Relationships Using Soft Computing Techniques." Thesis, University of Bradford, 2015. http://hdl.handle.net/10454/14440.
Full textGurung, Kumari. "ASSESSING ECOSYSTEM SERVICES FROM THE FORESTRY-BASED RECLAMATION OF SURFACE MINED AREAS IN THE NORTH FORK OF THE KENTUCKY RIVER WATERSHED." UKnowledge, 2018. https://uknowledge.uky.edu/forestry_etds/43.
Full textFernandez, Sanchez Javier. "Knowledge Discovery and Data Mining Using Demographic and Clinical Data to Diagnose Heart Disease." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-233978.
Full textBadayos, Noah Garcia. "Machine Learning-Based Parameter Validation." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/47675.
Full textPh. D.
Johansson, Fredrik, and Markus Lindgren. "Hybridmodeller för prediktiv modellering skapade med genetisk programmering." Thesis, Högskolan i Borås, Institutionen Handels- och IT-högskolan, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-17316.
Full textProgram: Systemarkitekturutbildningen
Lamprou, Sokrates. "A study in alcohol : A comparison of data mining methods for identifying binge drinking risk factors in university students." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-174087.
Full textBleby, Timothy Michael. "Water use, ecophysiology and hydraulic architecture of Eucalyptus marginata (jarrah) growing on mine rehabilitation sites in the jarrah forest of south-western Australia." University of Western Australia. School of Plant Biology, 2003. http://theses.library.uwa.edu.au/adt-WU2004.0004.
Full textSchmidt, Anel. "Strip-mine rehabilitation in Namaqualand." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/53068.
Full textENGLISH ABSTRACT: Namaqualand has a very unusual diversity of plant life, with many endemic plant species. The fundamental question of this thesis is how this system, damaged by strip-mining activities, can be rehabilitated. The aim was to base the rehabilitation methods on ecological processes. In order to answer this question an overview of the relevant literature was needed in order to identify possible research needs and also to evaluate the work that has been done in the field of strip-mine rehabilitation in arid areas. An understanding of community and ecosystem dynamics would help to establish aims and methods for site-specific rehabilitation. In Namaqualand, South Africa, there is also a need for experimentation to establish which of the many factors is most limiting to long-term ecosystem recovery. It is important to have a good knowledge of the successional processes and disturbance history of the land which needs to be rehabilitated. The vegetation on unmined areas and mined areas of different ages and treatments after mining, were sampled. It was shown that some areas could be expected to show a large degree of recovery in the space of a few years, whilst others would show little or no recovery over a period of decades. It is important to recognise rehabilitation as a gradual process that takes place at different rates in different areas and in different years. The planting of Atriplex nummularia and sowing of Atriplex semibaccata did not facilitate the return of indigenous, perennial species, but rather seem to inhibit their return. In view of the importance of topsoil in terms of the fertility of the soil and the seed bank present in the topsoil, the influence of topsoil removal and stockpiling due to strip-mining activities were tested. The soil fertility was tested by means of radish bioassays and soil laboratory analysis, whilst species diversity and richness were tested with seedling emergence trials. As expected a higher plant species diversity was found on the unmined soils and radishes grew larger on these soils. The topsoil deteriorated in terms of plant species richness, diversity and soil fertility whilst it was stockpiled. Direct replacement of topsoil would ensure a planting medium closer to the pre-disturbance level that could lead to fairly rapid and successful recolonization of the mined area. Successful plant recruitment also depends on the microsites to which seeds are dispersed. The effect that different microsites had on seed germination, seedling growth and survival was tested. It was found that micro catchments always yielded the highest numbers. The establishment and survival of seedlings in the other microsite types (under single shrubs, under clumped shrubs and in the open) varied, depending on the amount of rainfall received in the particular year. Lastly, I experimented with the translocation of three local, indigenous, succulent plant species. These plants were transplanted either in clumps of three together or alone, since I hypothesized that planting them together would facilitate their survival. However, it was found that it depended largely on the morphology of the plant and the amount of rainfall received in a particular year, whether these plants will compete with each other for limiting resources or facilitate each other's survival. The thesis contributes to the understanding of vegetation dynamics in the Succulent Karoo after strip-mining has taken place. Guidelines are provided based on ecological processes, for strip-mine rehabilitation in the Succulent Karoo.
AFRIKAANSE OPSOMMING: Namakwaland is bekend vir sy ongewone diversiteit van plante, met baie endemiese spesies. Die fundamentele vraag wat deur hierdie tesis gevra word is hoe hierdie sisteem, wat beskadig is deur oppervlak mynbou, gerehabiliteer kan word. Die doel is om die rehabilitasie metodes te baseer op ekologiese prosesse. 'n Oorsig van die relevante literatuur was nodig om moontlike areas van verdere navorsing te identifiseer en ook die navorsing wat reeds gedoen is oor rehabilitasie van oppervlak myne in ariede gebiede, te evalueer. 'n Goeie begrip van gemeenskap en ekosisteem dinamika sal help om doelwitte en metodes daar te stel vir die rehabilitasie van spesifieke areas. Dit is ook nodig om in Namakwaland, Suid -Afrika, uit te vind watter van die baie faktore, die lang-termyn herstel van 'n ekosisteem, die meeste verhinder. Dit is baie belangrik om In goeie kennis te hê van die versteurings geskiedenis van die area wat gerehabiliteer moet word, asook die suksessionele prosesse wat werksaam is. Plantegroei van areas wat op verskillende tye gemyn en verskillend behandel is, asook ongemynde areas is ondersoek. Sekere areas het In groot mate van herstel gewys in 'n tydperk van 'n paar jaar, terwyl ander, min of geen hersteloor 'n periode van dekades getoon het nie. Dit is belangrik om rehabilitasie as 'n geleidelike proses te sien, wat teen verskillende tempos plaasvind tydens verskillende jare en in verskillende areas. Daar is bevind dat die plant van Atriplex nummularia asook die saai van Atriplex semibaccata nie die terugkeer van inheemse, meerjarige spesies bevoordeel nie, maar dit eerder inhibeer. Aangesien die bo-grond so belangrik is in terme van die grondvrugbaarheid en ook die saadbank wat teenwoordig is, word die invloed van die verwydering en opberging van die bogrond getoets. Die grondvrugbaarheid was bepaal deur groei-toetse op radyse en laboratorium analise op die grond te doen. Die plant spesie diversiteit en rykheid was bepaal met In saad ontkieming studie. In ooreenstemming met die verwagte uitkoms, was die plant spesie diversiteit hoër op die ongemynde bo-grond en die radyse het groter geword op dieselfde grond. Dit kom voor asof die plant spesie diversiteit en rykheid, asook die grond vrugbaarheid afneem met tyd wat die bo-grond geberg word. Die direkte verspreiding van die bo-grond nadat dit verwyder is, sal In medium vir die plante verseker wat nader is aan die vlak voordat die grond versteur is. Dit sal oak sorg vir redelike vinnige en suksesvolle terugkoms van plante op die gemynde grond. Die suksesvolle vestiging van plante hang ook af van die mikro areas (klein areas in terme van die grootte van 'n saad, wat In eie mikro-klimaat vorm), waarna saad versprei word. Die effek van sulke mikro-gebiede op die ontkieming van saad, die groei van die saailinge en die oorlewing van die saailinge was bepaal. Mikro-water- opvanggebiede het in al drie bogenoemde gevalle die hoogste syfers getoon. Die vestiging en oorlewing van saailinge in die ander mikro-gebiede (die area onder enkel struike, die area onder groepe struike en oop areas) het gevarieer afhangend van die hoeveelheid reënval wat ontvang is in die spesifieke jaar. Laastens, is daar ge-eksperimenteer met die oorplant van drie plaaslike, inheemse, sukkulente spesies. Hierdie plante was alleen geplant of in groepies van drie, bymekaar. Die hipotese was dat huloorlewingskanse beter sal wees as hulle saam geplant word. Dit was egter bevind dat die hoeveelheid reënval in 'n spesifieke jaar en die morfologie van die plant, bepaal of hulle sal kompeteer vir die beperkte bronne en of hulle deur saam te groei huloorlewingskanse sal verhoog. Hierdie tesis dra by tot die verstaan van die plantegroei dinamika in die Sukkulente Karoo nadat oppervlak mynbou plaasgevind het. Riglyne vir die rehabilitasie van oppervlak myne, gebasseer op ekologiese prosesse, word ook voorgestel.
Subburayalu, Sakthi Kumaran. "Application of machine learning for soil survey updates a case study in southeastern Ohio /." Columbus, Ohio : Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1199992659.
Full textBOOTH, Micael Cortopassi. "Cen?rios de ?reas degradadas em recupera??o na FLONA do Jamari/RO." Universidade Federal Rural do Rio de Janeiro, 2017. https://tede.ufrrj.br/jspui/handle/jspui/2232.
Full textMade available in DSpace on 2018-03-23T18:33:28Z (GMT). No. of bitstreams: 1 2017 - Micael Cortopassi Booth.pdf: 3109489 bytes, checksum: 01bce83a5a84e68b19faf1907d31a751 (MD5) Previous issue date: 2017-02-22
CAPES
The use of geotechnologies assists in the monitoring and quantification of the development and modification of the landscape. The Amazon region has high diversity and plant richness and it is in this biome that is the study area, in the National Forest of Jamari, is a Conservation Unit of Multiple Use. In this FLONA there are eight mines under a PRAD because there has been since the 1960s the exploration and mining of cassiterite to obtain tin. The opening of cavas for the exploration is done in the open, performed almost mechanically, leaving the environment at the end very degraded and its restoration demands resources and time. In general, the recovery of the landscape of an area of cultivation is done with the use of planting heterogenous species of the same biome, aiming to cover the soil and induce natural regeneration. In the areas of mines the type of substrate influences in the development and fixation of the vegetal species in the area. The objectives were to map the soil cover, the creation of future scenarios of revegetation using a prediction program. In these mines the types of substrates that were classified in tillage (PL), dry tail (RS), wet tail (RU), washed tail and washing plant (WP) were mapped. Using four high spatial resolution images of the years 2009, 2011, 2013 and 2015, the typologies were classified as soil exposed, field dirty, capoeira, vegetation thin, intermediate, dense. The areas occupied by each typology for each of the years studied in the mines were compared in order to quantify the converted areas of exposed soil in vegetated areas and the dynamics of the present vegetation cover. Future scenarios for the years 2020 to 2065 were modeled using the Dinamica-EGO, a program used for simulation and prediction of natural environments in particular deforestation. The validation of the generated maps was done using fuzzy similarity. The results obtained for the future scenarios were similar to those observed and the dynamics of the five typologies used evolved in a manner consistent with that observed, with some mines having a better development in a shorter time according to the type of substrate and age of the plantations.
A utiliza??o de geotecnologias auxilia no acompanhamento e quantifica??o do desenvolvimento e modifica??o da paisagem. A regi?o Amaz?nica tem alta diversidade e riqueza vegetal e ? nesse bioma que est? a ?rea de estudo, na Florestal Nacional do Jamari, uma Unidade de Conserva??o de uso m?ltiplo. Nessa FLONA h? oito minas sob um PRAD pois houve desde a d?cada de 1960 a explora??o e lavra de cassiterita para obten??o de estanho. A abertura de cavas para a explora??o ? feita a c?u aberto, realizada de forma quase toda mec?nica, ficando o ambiente ao final muito degradado e sua restaura??o demanda recursos e tempo. De modo geral, a recupera??o da paisagem de uma ?rea de lavra ? feita com o uso de plantio de esp?cies heterogenias do mesmo bioma, visando recobrir o solo e induzir a regenera??o natural. Nas ?reas de minas o tipo de substrato influencia no desenvolvimento e fixa??o das esp?cies vegetais na ?rea. Os objetivos foram mapear a cobertura do solo, a cria??o de cen?rios futuros de revegeta??o usando um programa de predi??o. Nestas minas foram mapeados os tipos de substratos que s?o classificadas em piso de lavra (PL), rejeito seco (RS), rejeito ?mido (RU), rejeito capeado e washing plant (WP). Utilizando quatro imagens de alta resolu??o espacial dos anos 2009, 2011, 2013 e 2015, foram classificados as tipologias solo exposto, campo sujo, capoeira, vegeta??o rala, intermedi?ria, densa. As ?reas ocupadas por cada tipologia, para cada um dos anos estudados nas minas foram comparados visando quantificar as ?reas convertidas de solo exposto em ?reas vegetadas e a din?mica da cobertura vegetal presente. Cen?rios futuros para os anos de 2020 a 2065 foram modelados utilizando o Din?mica-EGO, programa utilizado para simula??o e predi??o de ambientes naturais em especial desmatamento. A valida??o dos mapas gerados foi feita utilizando similaridade fuzzy. Os resultados obtidos para os cen?rios futuros foram em similares ao observado e a din?mica das cinco tipologias utilizadas evolu?ram de forma condizente com o observado, tendo algumas minas melhor desenvolvimento em um menor tempo de acordo com o tipo de substrato e idade dos plantios.
Pedron, Leandra. "MIRMECOFAUNA EM ÁREA DE MINERAÇÃO DE CARVÃO NO RIO GRANDE DO SUL." Universidade Federal de Santa Maria, 2016. http://repositorio.ufsm.br/handle/1/8775.
Full textThe aim of this study was to evaluate the biodiversity of ants in coal mining area in the city of Candiota, Rio Grande do Sul. Thus, two methods of sampling were used and, as a result, this work was divided into two chapters. In the first chapter, the survey of the mirmecofauna was carried out monthly with attractive bait in the period from July 2014 to June 2015. It was used the Completely Randomized Design (CRD) with seven treatments, which are: native grassland, non-mined area; native grassland, mined area; plantation of Acacia mearnsii, non-mined area; plantation of Acacia mearnsii, mined area; plantation of Eucalyptus dunnii, non-mined area; plantation of Eucalyptus dunnii, mined area 1; and plantation of Eucalyptus dunnii, mined area 2. Each treatment was composed of 10 baits, in every date of collection. 35,389 specimens belonging to five subfamilies, nine tribes, 15 genera and 40 species were collected. In the area with native grassland, non-mined area, there was the largest number of species and the in the planted area of Acacia mearnsii, mined area, there was the highest level of species richness (Sobs = 25). There was no statistical difference between the mean plenty of treatments, but there was a difference between the means of richness of the treatments. The genera such as Pheidole, Camponotus and Solenopsis were the most abundant in all treatments. It is concluded that nonmined areas and mined areas that passed through the recovery process does not interfere with the total of collected specimens and species richness. In the second chapter, soil mirmecofauna sampling was carried out with use of Berlese Funnel. The survey was performed monthly from July 2014 to June 2015. CRD was used in six treatments: native grassland, non-mined area; native grassfield, mined area; plantation of Acacia mearnsii, non-mined area; plantation of Acacia mearnsii, mined area; plantation of Eucalyptus dunnii, non-mined area; and plantation of Eucalyptus dunnii, mined area. Four soil samples were collected in each treatment, in every date of collection. In the laboratory, the samples were placed in Berlese Funnels, where they remained seven days under incandescent light. 2,105 specimens were collected, divided into four subfamilies, eight tribes, 16 genera and 31 species. The highest abundance and the largest number of collected species was in the area with native grassland, non-mined area (Sobs = 18). There was statistical difference between the means of abundance and species richness among treatments. Thus, it is possible to conclude that the total number of collected and the richness of specimens differ between mined and non-mined areas.
O objetivo deste trabalho foi avaliar a biodiversidade de formigas em área de mineração de carvão, no município de Candiota, Rio Grande do Sul. Para isso foram utilizados dois métodos de amostragem e assim este trabalho foi dividido em dois capítulos. No primeiro capítulo, o levantamento da mirmecofauna foi realizado mensalmente com isca atrativa, no período de julho de 2014 a junho de 2015. Foi utilizado Delineamento Inteiramente Casualizado (DIC) com sete tratamentos, sendo eles: campo nativo, área não minerada; campo nativo, área minerada; plantio de Acacia mearnsii, área não minerada; plantio de Acacia mearnsii, área minerada; plantio de Eucalyptus dunnii, área não minerada; plantio de Eucalyptus dunnii, área minerada 1; e plantio de Eucalyptus dunnii, área minerada 2. Cada tratamento esteve constituído por 10 iscas, a cada data de coleta. Foram coletados 35.389 espécimes, pertencentes à cinco subfamílias, nove tribos, 15 gêneros e 40 espécies. Na área com campo nativo, área não minerada observou-se o maior número de espécimes e na área plantio de Acacia mearnsii, área minerada a maior riqueza de espécies (Sobs = 25). Não houve diferença estatística entre as médias de abundância dos tratamentos, mas houve diferença entre as médias de riqueza dos tratamentos. Os gêneros Pheidole, Camponotus e Solenopsis foram os mais abundantes em todas as tratamentos. Conclui-se que as áreas não mineradas e as áreas mineradas que sofreram o processo de recuperação não interferem no total de espécimes coletados e na riqueza de espécies. No segundo capítulo, foi realizada amostragem da mirmecofauna de solo com utilização de Funil de Berlese. O levantamento foi realizado mensalmente de julho de 2014 a junho de 2015. O delineamento utilizado foi DIC com seis tratamentos: campo nativo, área não minerada; campo nativo, área minerada; plantio de Acacia mearnsii, área não minerada; plantio de Acacia mearnsii, área minerada; plantio de Eucalyptus dunnii, área não minerada; e plantio de Eucalyptus dunnii, área minerada. Foram coletadas quatro amostras de solo em cada tratamento, em cada data de coleta. Em laboratório, essas amostras foram colocadas em funis de Berlese, onde permaneceram sete dias sob luz incandescente. Foram coletados 2.105 espécimes, distribuídos em quatro subfamílias, oito tribos, 16 gêneros e 31 espécies. A maior abundância e o maior número de espécies coletadas foi na área com campo nativo, área não minerada (Sobs = 18). Houve diferença estatística entre as médias de abundância e riqueza de espécies entre os tratamentos. Assim, pode-se concluir que o total de espécimes de formigas coletadas e a riqueza de espécies diferem entre as áreas mineradas e não mineradas.
Manilich, Elena A. "Hereditary Colorectal Cancer: Information-Based Approach." Cleveland, Ohio : Case Western Reserve University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=case1252247671.
Full textTitle from PDF (viewed on 2009-12-30) Department of Electrical Engineering and Computer Science Includes abstract Includes bibliographical references and appendices Available online via the OhioLINK ETD Center
Silva, Edmilson Alves da. "Avalia??o da recupera??o natural de ?reas degradadas pelo garimpo de diamante no Vale do Rio S?o Jos? em Len??is/BA." Universidade Estadual de Feira de Santana, 2013. http://localhost:8080/tede/handle/tede/198.
Full textMade available in DSpace on 2015-09-16T22:20:18Z (GMT). No. of bitstreams: 1 Disserta??o finalpdf.pdf: 1860889 bytes, checksum: ee87b81fe0a21430df0bad836a2fe39f (MD5) Previous issue date: 2013-03-27
Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES
The present work examined the floristic compositions and structures, and the similarities between seven areas degraded by mechanized diamond mining along the S?o Jos? River Valley (12o34? to 12?36? S - 41o22? to 41?35? W), in the municipality of Len??is, Bahia State, Brazil, after 23 years of abandonment and natural regeneration and compared them to an area of intact gallery forest along the same river. The collections were made between the months of April and December/2011 along 1 x 100 m transects established in each of the seven areas, applying the point method. A previously compiled species list was used to compare the seven recovering areas with an intact riverine forest site. A total of 62 species were encountered, distributed among 53 genera and 26 families. The families demonstrating the greatest species richness were Leguminosae (16), Poaceae (11), Cyperaceae (7), Melastomataceae (6), Malvaceae (4), and Lycopodiaceae (2). The sum of the richnesses of these families represented fully 74% of the total number of species recorded in the present study. In terms of the plant habits, 11 species (15%) were arboreal, 17 (26%) shrubs, 28 (42%) herbaceous, 07(11%) sub-shrubs, and 04 (6%) vines. The species demonstrating the greatest Relative Vigor and Cover were Sebastiania corniculata, Aristida setifolia, and Homolepis aturensis. The slow natural regeneration of these areas was apparently due to the modification of the soil structure by the mechanized mining, as judged by the greater similarity (although low) between the areas regenerating for the longest periods and the intact gallery forest site along the same river as performing solo one little more structured.c
Este trabalho verificou a composi??o flor?stica, estrutura e similaridade entre sete ?reas degradadas pelo garimpo de diamantes no vale do rio S?o Jos? (12o34? e 12?36? S - 41o22? e 41?35? W), munic?pio de Len??is, Bahia, ap?s decorridos 13 anos de registros sobre a regenera??o natural, e comparou com a floresta ciliar do mesmo rio. As coletas foram realizadas entre abril a dezembro de 2011 ao longo de um transecto de 1m x 100m em cada uma das ?reas onde foi aplicado o m?todo de pontos em cada uma das ?reas. Para comparar com o remanescente florestal do entorno, foi usada a lista de esp?cies da floresta ciliar elaborada previamente. Foram amostradas 62 esp?cies distribu?das em 53 g?neros e 26 fam?lias. As fam?lias com maior riqueza de esp?cies s?o Leguminosae (16), Poaceae (11), Cyperaceae (7), Melastomataceae (6), Malvaceae (4), Lycopodiaceae (2). O somat?rio da riqueza destas fam?lias representa 74% do total das esp?cies levantadas neste estudo. Em termos de h?bito foram encontradas 11 (15%) esp?cies arb?reas, 17 (26%) esp?cies arbustivas, 28 (42%) herb?ceas, 07(11%) subarbustivas e 04 (6%) trepadeiras. As esp?cies que mais se destacaram por Vigor Relativo e Cobertura foram Sebastiania corniculata, Aristida setifolia e Homolepis aturensis. A lenta regenera??o natural das ?reas se deve ?s m?s condi??o do solo que apresenta-se modificado pelas a??es do garimpo, tendo sido evidenciada uma maior similaridade, embora baixa, entre as ?reas de maior tempo de abandono que apresentam solo um pouca mais estruturado e o remanescente florestal ciliar do rio S?o Jos?.
Daume, Stefan [Verfasser], Klaus von [Akademischer Betreuer] Gadow, Winfried [Akademischer Betreuer] Kurth, and Jürgen [Akademischer Betreuer] Nagel. "Social media mining as an opportunistic citizen science model in ecological monitoring: a case study using invasive alien species in forest ecosystems. / Stefan Daume. Betreuer: Klaus von Gadow. Gutachter: Klaus von Gadow ; Winfried Kurth ; Jürgen Nagel." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2015. http://d-nb.info/1077648448/34.
Full textLaudisa, Costanza. "Identificazione di utenti in base a come digitano sullo smartphone tramite reti neurali." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19618/.
Full textCarvalho, Andréa Siqueira. ""Mamíferos de médio e grande porte na Floresta Nacional de Carajás, Pará: riqueza, abundância e efeitos da fitofisionomia e do impacto da mineração"." Universidade do Estado do Rio de Janeiro, 2011. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=3161.
Full textThe National Forest of Carajás is a federal conservation unit located in the southeast of the Amazon, northern Brazil. Together with other five areas make up the mosaic of Carajás with a continuum of 1.307 million hectares of protected area. The main vegetation types present within the unit are the Dense Montane Forest and Savana Metalófila. The unit houses the largest mineral reserves in the world. Mining activity promotes different impacts on fauna mainly by alteration of the landscape caused by vegetation removal and stacking sterile. The aim of this work was to study the composition of the mammal community of medium and large through the collection of information about richness, abundance and differences between vegetation types in the mammalian species composition of Savana Metalófila and Dense Montane Forest and its changes caused by the impact. Were conducted four campaigns and 19 tracks that were distributed in areas of Savana Metalófila and Dense Montane Forest impacted and control. The methodology used was to linetransect and camera trapping employee with a total effort of 432 km and 85.920 hours for each method, respectively. The mammal community of medium and large showed 43 species in eight orders, showing an increase of 41% of new registrations for the region. The community composition of mammal species show differences in richness and abundance of species in two vegetation types and the effect of the impact of mining. This work has brought about improvements to the list of mammalian species of medium and large size and increased knowledge about the composition of this fauna in environments of forest and savanna in the Carajás National Forest. Brought information about the impacts on mammals and identified important sensitivities of some species facing the mining, contributing to the quest for balance between mining and conservation.