Dissertations / Theses on the topic 'Environmental indices'
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Parker, Jonathan Duguid Edward. "Environmental reporting and environmental indices." Thesis, University of Cambridge, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358483.
Full textLeung, Wai-shun Wilson. "Ecological water quality indices in environmental management /." View the Table of Contents & Abstract, 2006. http://sunzi.lib.hku.hk/hkuto/record/B3712058X.
Full textLeung, Wai-shun Wilson, and 梁威信. "Ecological water quality indices in environmental management." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B45013482.
Full textCatalán, Alemany Ignacio. "Condition Indices and their Relationship with Environmental Factors in Fish Larvae." Doctoral thesis, Universitat de Barcelona, 2003. http://hdl.handle.net/10803/1422.
Full textThis thesis offers new information on several aspects of nutritional condition and growth indices, by working on two main lines:
1) Laboratory Studies: Three main types of condition indices were investigated in larvae of a well-known laboratory-reared species (sea bass Dicentrarchus labrax). Acknowledging for the species-specificity of condition indices, this experimental Chapter was devoted to the study of various properties of morphometric, histological and biochemical indices, in response to several feeding schemes. Also, effort was placed in the improvement of some of the indices and the study of their relationship with survival in the laboratory.
In the last Section of this Chapter (comparative analysis), a model to relate potential survival with the different indices is proposed.
2) Field Studies: the relationships between environmental variables, nutritional status and growth of Sardina pilchardus (Walbaum 1972) larvae in an area of the Catalan Sea (NW Mediterranean) were studied. Pilchard is the most abundant commercial pelagic fish species in the NW Med. Despite its economic importance and the known decline of the stock since 1993, the studies on possible links between environmental conditions and pilchard early life history are hardly developed in this area.
The field studies were based on three oceanographic cruises conducted in November 1998, February 1999 and November 1999. Firstly, biotic and abiotic environmental variables were related to larval distribution, abundance and size-structure. Secondly, the nutritional condition and growth was studied in two of the cruises. Environmental variables considered at each station included potential food, fluorescence, temperature, salinity and the maximum Brünt-Väisälä frequency. Long-term growth was analysed through otolith analyses and muscle fibre growth patterns. Condition was studied through hystological an biochemical (protein ad RNA/DNA ratios) indices. The possible effect of environmental variables on potential survival is discussed.
The main conclusions of the thesis were:
LABORATORY STUDIES
1)Morphometric indices proved useful in distinguishing the shape of larvae subjected to differing feeding conditions. This was done through multivariate analysis on variables from which the effect of size had been completely removed, whilst incorporating the information on allometry.
2)The quantitative determination of muscle fibre separation (MFS) showed to be the best histological method (within those tested) to detect a suboptimal nutritional state.
3)The RNA/DNA ratio is more appropriate in detecting a nutritional deficiency in post-flexion than in pre-flexion larvae.
4)Within the biochemical indices studied in post-flexion larvae subjected to a short-term food deprivation and re-feeding, the RNA/DNA and the LDH/DNA ratios are considered particularly useful.
5)In post-flexion larvae subjected to 2 days of fast, the cell proliferation rate measured in the muscle was significantly lower than in Fed larvae. This was not observed in the brain, which is more conservative to the food withdrawal.
6)The comparison of morphometric, histological and biochemical indices shows that, in pre-flexion larvae, the quantitative determination of muscle fibre separation is the index that soonest detects the effect of food deprivation. For the same age-range, the RNA/DNA yields the maximum correct discrimination percentage (100%). In this study, the MFS was the condition index that held the best correspondence with larval mortality.
7)The larval susceptibility to mortality at sea may be more related to those deficiencies that involve organs or tissues that are of crucial importance for feeding behaviour, escape response or maintenance of floatability, like the muscle. It is here proposed an scheme of how indices could be weighted in order to relate them with survival potential.
FIELD STUDIES
8)In November 1998, certain environmental characteristics were found to be positively associated with nutritional condition of S.pilchardus, measured through histological and RNA/DNA indices. These areas can be characterised by an optimum "environmental window" defined by temperature values under 19ºC, values of the Brunt-Väissälä (B-V) water stability index under 0.8 cycles h-1 and values of potential food abundance over 4.5 nauplii l-1 and 5.5 individuals l-1 of the rest of the microzooplankton. The variables that best related to larval condition were the B-V index and the amount of potential food. Moreover, the larval abundance was higher in those areas. Therefore, it is considered that larval survival would be enhanced in these areas.
9)In February 1999 the eggs and larval abundance was lower than in November 1998.
10)The long-term growth studied through otolith analyses suggests that larval growth was enhanced in November 1998 with respect to February 1999. This result was confirmed by the analysis of the muscle fibre growth patterns. Condition was also better in November 1998, although the February data were less clear.
11)The measures of growth and condition showed a general coincident pattern. The analysis of muscle growth patterns suggests that in pilchard larvae growth is hypertrophic until 6-7 mm SL, becoming hyperplastic at least until 13.5 mm SL. Within the histological measures studied, the MFS was the most informative. The RNA/DNA appeared more useful in larvae over 8-10 mm SL.
12)The amount of larvae in the November 1998 and February 1999 cruises was anomalously low for the time of the year. Hydrographic conditions during both cruises were highly unusual, exhibiting high stratification in November and an inverted salinity pattern in February. The presence of a mesoscale anticyclonic eddy of new AW, that remained in the area from October 1998 to February 1999, is thought to account for the unusual hydrographic conditions and the low numbers of eggs and larvae in some areas.
13)Overall, the data on larval abundance, nutritional condition and environmental characteristics suggest that the spawning season autumn 1998-winter 1999 was characterised by a low larval production of this species. It is concluded, from the joint interpretation of all data, that putative larval survival would be the result of a reduced spawning and nutritional condition in some areas and periods, and a reduced growth in the winter cruise.
Daalmans, Ronald J. G. "The application of LCA impact assessment to environmental performance indices : a comparative study." Thesis, University of Stirling, 1997. http://hdl.handle.net/1893/2226.
Full textVan, Gaalen Kenneth Eric, and University of Lethbridge Faculty of Arts and Science. "Photosynthetic CO2 exchange and spectral vegetation indices of boreal mosses." Thesis, Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 2005, 2005. http://hdl.handle.net/10133/293.
Full textxi, 110 leaves : ill. (some col.) ; 29 cm.
Miura, Tomoaki. "Evaluation and characterization of vegetation indices with error/uncertainty analysis for EOS-MODIS." Diss., The University of Arizona, 2000. http://hdl.handle.net/10150/284157.
Full textVlasova, O. V. "Particular paraclinical indices in newborn sepsis patients whose parents constantly lived in different environmental conditions." Thesis, БДМУ, 2021. http://dspace.bsmu.edu.ua:8080/xmlui/handle/123456789/19161.
Full textBraganza, Karl 1971. "Climate change detection and attribution using simple global indices." Monash University, School of Mathematical Sciences, 2002. http://arrow.monash.edu.au/hdl/1959.1/7783.
Full textLiu, Huidong. "Environmental change in former and present Karner Blue butterfly habitats." Bowling Green State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1210181611.
Full textMadi, Rubens Riscala. "Utilização dos helmintos parasitos de Geophagus brasiliensis (Quoy & Gaimard, 1824) (Cichlidae; Perciformes) como indicadores ambientais." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/315269.
Full textTese (doutorado) - Universidade Estadual de Campinas, Instituto de Biologia
Made available in DSpace on 2018-08-04T12:58:43Z (GMT). No. of bitstreams: 1 Madi_RubensRiscala_D.pdf: 9621964 bytes, checksum: 62171358c6dd9c0bf0ceb26ed12fd16c (MD5) Previous issue date: 2005
Resumo: Alguns parasitos de peixes podem ser utilizados como indicadores da qualidade e saúde ambiental. Por fazerem parte de uma complexa cadeia de relações os hospedeiros intermediários e paratênicos, geralmente pequenos e delicados, variam seus níveis populacionais conforme o tipo de poluente refletindo em alterações do parasitismo em peixes. A escolha de uma espécie de peixe como bio-indicador é fator fundamental para a correta utilização dessa ferramenta de análise ambienta!. Neste trabalho foram comparados os parasitismos do peixe Geophagus brasiliensis (Cichlidae, Perciformes) em dois reservatórios com diferentes níveis de influência antrópica e eutrofização. Foram verificados os helmintos parasitos cavitários, teciduais e de brânquias. Foram calculados os índices de diversidade de Simpson e de Shannon, o índice de uniformidade de HiII, os coeficientes de associação de Jaccard, de Dice e de Ochiai e as variações nas taxas de prevalência e intensidade média de infecção. Para o modelo adotado, os índices que melhor refletiram a influência do tipo de ambiente e as variações ocasionadas dentro destes ambientes foram a prevalência e a intensidade média de infecção. Os resultados obtidos com os índices de associação demonstraram a independência das relações entre os helmintos parasitos encontrados. Através dos cálculos das prevalências e intensidades médias de infecção os parasitos podem ser utilizados como indicadores de alterações ambientais (metacercárias de Clinostomum sp. e Ancyrocephalinae) e indicadores faunísticos em ambientes distintos (metacestódeos de Proteocephalidea e Cyclophyllidea e o nematódeo Procamallanus peraccuratus). Foram encontradas também larvas de Contracaecum sp. cujos resultados não foram suficientes para uma conclusão sobre o seu papel como indicador ambienta!
Abstract: Some parasites of fishes can be utilized as indicators of water quality and environmental health. As intermediate and paratenic hosts, generally small and delicate, belonging to a complex relationship chain, they must vary their population in accordance to the variety of pollutant, reflects in alteration of parasitism in fishes. The choice of the fish specie as bio-indicator is a essential factor to a correct utilization as toei of environmental analysis. In this work, it was compared the parasitism of Geophagus brasiliensis (Cichlidae, Perciformes) in two rese rvo i r with different levels os antropic influence and eutrophication. The cavities, tissular and gill helminths parasites were verified. The Simpson's and Shannon's diversity indices, the HiII's evenness index, the Jaccard's, Dice's and Ochiai's interespecific association indices and the variations in prevalence and mean intensity of infection were calculated. To the model adopted the indices that better reflected the influence of environmental type and the variations that occurred inside the environment were the prevalence and intensity of infection. The interespecific association indices demonstrate the independence of relations among the helminths parasites. Through the estimate of prevalence and mean intensity of infection indices, the parasites can be utilized as indicators of environmental changes (metacercariae of Clinostomum sp. and Ancyrocephalinae) and faunistics indicators of distincts environments (metacestodes of Proteocephalidea and Cyclophyllidea and the nematode Procamallanus peraccuratus). Larvae of Contracaecum sp. were also found, whose resulting were not sufficient to a conclusion about its function as environmental indicator
Doutorado
Parasitologia
Doutor em Parasitologia
Remmal, Taoufik. "Etude métallogènique des indices wolframifères du district de Hassiane Diab, région d'Oujda (Maroc nord oriental)." Phd thesis, Institut National Polytechnique de Lorraine - INPL, 1989. http://tel.archives-ouvertes.fr/tel-00745438.
Full textTuricchia, Eva. "Citizen science as a tool for the environmental quality assessment of the Mediterranean coastal habitats." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8748/.
Full textZhang, Liang. "Classification and ranking of environmental recordings to facilitate efficient bird surveys." Thesis, Queensland University of Technology, 2017. https://eprints.qut.edu.au/107097/1/Liang_Zhang_Thesis.pdf.
Full textHauton, Christopher. "An investigation of potential immunological and metabolic indices of environmental water quality in the shore crab, Carcinus maenas." Thesis, University of Southampton, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296142.
Full textThomas, Jafra D. "Exerciser self-image and indices of health-related physical fitness." Scholarly Commons, 2014. https://scholarlycommons.pacific.edu/uop_etds/310.
Full textGao, Xiang. "Optical-biophysical relationships and validation of MODIS vegetation indices with multiple fine spatial resolution data in semiarid rangelands." Diss., The University of Arizona, 2001. http://hdl.handle.net/10150/279915.
Full textElias, Carlos Guillermo. "Balancing competing development objectives in the Trifinio region of Central America: economic and social development and environmental protection." Diss., Virginia Tech, 2008. http://hdl.handle.net/10919/28958.
Full textPh. D.
Vander, Laan Jacob J. "Environmental Assessment of Streams: Linking Land Use, Instream Stressors, and Biological Indices to Infer Likely Causes of Ecological Impairment." DigitalCommons@USU, 2012. https://digitalcommons.usu.edu/etd/1340.
Full textFair, Heather Lynne. "Headwater Landscape Variations and Biodiversity: Applicability of Ohio Habitat Evaluation Indices in a Glacier Catchment of the Mekong River." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1274280051.
Full textOchieng, Anne Achieng. "The relationship between environmental exposures to pesticides measured by means of environmental exposure indices and the anthropomentric outcomes of boys living on farms in the rural Western Cape." Master's thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/12169.
Full textIncludes bibliographical references.
Few epidemiological studies have investigated the effect of pesticides on growth of boys and results are conflicting. Pesticide environmental exposure indices have not previously been developed. To investigate the effect of pesticide exposure using environmental exposure indices on pubertal growth of boys...
Aralova, Dildora, Kristina Toderich, Ben Jarihani, Dilshod Gafurov, Liliya Gismatulina, Babatunde A. Osunmadewa, and Abualgasim Majdaldin Rahamtallah. "Environmental resilience of rangeland ecosystems: Assessment drought indices and vegetation trends on arid and semi-arid zones of Central Asia." SPIE, 2016. https://tud.qucosa.de/id/qucosa%3A35118.
Full textBecker, Wayne. "Effect of Rancher’s Management Philosophy, Grazing Practices, and Personal Characteristics on Sustainability Indices for North Central Texas Rangeland." Thesis, University of North Texas, 2011. https://digital.library.unt.edu/ark:/67531/metadc103289/.
Full textKarlsson, Jesper, and Malm Simon Sääf. "INDEXICAL STORYTELLING : A story without words." Thesis, Högskolan i Skövde, Institutionen för informationsteknologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-20047.
Full textDet finns övrigt digitalt material (t.ex. film-, bild- eller ljudfiler) eller modeller/artefakter tillhörande examensarbetet som ska skickas till arkivet.
Lehmann, Adam Clay. "AN ANALYSIS OF RELATIONSHIPS BETWEEN MODELED HYDROLOGIC/SEDIMENT LOADS AND INDICES OF IN-STREAM PHYSICAL HABITAT QUALITY IN HEADWATER STREAMS OF SOUTHWEST OHIO." Miami University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=miami1292959248.
Full textRubio, Zuazo Ana Maria, and anarubio zuazo@gmail com. "Environmental influences on the sustainable production of the Sydney rock oyster Saccostrea glomerata : a study in two southeastern Australian estuaries." The Australian National University. Centre for Resource and Environmental Studies, 2008. http://thesis.anu.edu.au./public/adt-ANU20080618.091057.
Full textKerimoglu, Onur. "Influence Of Large Scale Atmospheric Systems On Hydorology And Ecology Of Turkish Lakes." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609272/index.pdf.
Full textMenozzi, Alessandro. "Environmental Management System: Implementation in a construction company." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.
Find full textQuin, Fraser Sinclair. "The use of pesticide ranking indices in the modelling of environmental impacts from pesticide use : a case study of the European apple industry." Thesis, University of Edinburgh, 2000. http://hdl.handle.net/1842/27225.
Full textBell, Maria Aletta. "Monitoring rehabilitation success using remotely sensed vegetation indices at Navachab Gold Mine, Namibia." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97888.
Full textENGLISH ABSTRACT: Remote sensing and vegetation indices were evaluated for its usefulness to monitor the success of the rehabilitation programme of the decommissioned tailings storage facility (TSF1) of the Navachab Gold Mine, Karibib, Namibia. The study aimed to objectively illustrate the rehabilitation progression from tailings (baseline) to soil (capping) and vegetation (planted as well as natural). Baseline data sets of 2004 and 2005 were compared with imagery of 2009, 2010 and 2011. All the images were subjected to panchromatic sharpening using the subtractive resolution merge (SRM) method before georegistration. As no recent accurate topographical maps were available of the study area, the May 2010 image was used as a reference image. All other images were georegistered to this image. A number of vegetation indices (VIs) were evaluated. The results showed that the normalised difference vegetation index (NDVI) and the transformed vegetation index (TVI) provided the most promising results. Although the difference vegetation index (DVI) and enhanced vegetation index (EVI) distinguished the vegetation, rock, and soil classes, it was not as successful as the other VIs in classifying the rain water pond. TVI and NDVI were further evaluated for their efficacy in detecting changes. This was done by generating a series of change images and by qualitatively comparing them to false colour images of the same period. Both the NDVI and TVI delivered good results, but it was found that the TVI is more successful when water is present in the images. The research concludes that change analyses based on the TVI is an effective method for monitoring mine rehabilitation programmes.
AFRIKAANSE OPSOMMING: Afstandswaarneming en plantegroei-indekse is ge-evalueer vir die gebruikswaarde daarvan om sukses van die rehabilitasieprogram vir die geslote slykdam of tailings storage facility (TSF1) van die Navachab Goudmyn, Karibib, Namibië vas te stel. Die studie se doelwit was om die progressie in die rehabilitasie van slyk (basislyn) na grond (dekmateriaal) en plantegroei (aangeplant en natuurlik) te illustreer. Basislyndatastelle 2004 en 2005 is vergelyk met 2009, 2010, en 2011 beelde. Al die beelde is panchromaties verskerp deur die subtractive resolution merge (RSM) metode voor georegistrasie uit te voer. Aangesien geen onlangse, akkurate topografiese kaarte van die studiegebied beskikbaar was nie, is die beeld vir Mei 2010 as ‘n verwysingsbeeld gebruik. Al die ander beelde is op die laasgenoemde beeld gegeoregistreer. Die resultate het gewys dat die normalised difference vegetation index (NDVI) en die transformed vegetation index (TVI) die mees belowende resultate lewer. Al het die difference vegetation index (DVI) en enhanced vegetation index (EVI) goed onderskei tussen plantegroeiklasse en grond- en gesteentesklasse was dit nie so suksesvol met die klassifikasie van die reënwaterpoel nie. TVI en NDVI is verder geëvalueer vir effektiwiteit om verandering waar te neem. Dit is gedoen deur ‘n reeks van veranderingsbeelde te skep en dit dan kwalitatief met die valskleur-beelde vir dieselfde tydperk te vergelyk. Beide die NDVI en TVI het goeie resultate gelewer, maar die TVI was meer suksesvol om beelde met water te klassifiseer. Die navorsing lei tot die gevolgtrekking dat veranderingsanalises met die TVI ‘n effektiewe metode vir die monitoring van rehabilitasie programme is.
Motswaledi, Mokhine. "Using remote sensing indices to evaluate habitat intactness in the Bushbuckridge area : a key to effective planning." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96798.
Full textENGLISH ABSTRACT: Anthropological influences are threatening the state of many savanna ecosystems in most rural landscapes around the world. Effective monitoring and management of these landscapes requires up to date maps and data on the state of the environment. Degradation data over a range of scales is often not readily available due to a lack of financial resources, time and technical capabilities. The aim of this research was to use a medium resolution multispectral SPOT 5 image from 2010 and Landsat 8 images from 2014 to map habitat intactness in the Bushbuckridge and Kruger National Park (KNP) region. The images were pre-processed and segmented into meaningful image objects using an object based image analysis (OBIA) approach. Five image derivatives namely: brightness, compactness, NIR standard deviation, area and the normalised difference vegetation index (NDVI) were evaluated for their capability to model habitat intactness. A habitat intactness index was generated by combining the five derivatives and rescaling them to a data range of 0 to 10, with 0 representing completely transformed areas, 10 being undisturbed natural vegetation. Field data were collected in October 2014 using a field assessment form consisting of 10 questions related to ecosystem state, in order to facilitate comparisons with the remote sensing habitat intactness index. Both satellite data sets yielded low overall accuracies below 30%. The results were improved by applying a correction factor to the reference data. The results significantly improved with SPOT 5 producing the highest overall accuracy of 62.6%. The Landsat 8 image for May 2014 achieved an improved accuracy of 60.2%. The SPOT 5 results showed to be a better predictor of habitat intactness as it assigned natural vegetation with better accuracy, while Landsat 8 correctly assigned mostly degraded areas. These findings suggest that the method was not easily transferable between the different satellite sensors in this savanna landscape, with a high occurrence of forest plantations and rural settlements too. These areas caused high omission errors in the reference data, resulting in the moderate overall accuracies obtained. It is recommended that these sites be clipped out of the analysis in order to obtain acceptable accuracies for non-transformed areas. The study nevertheless demonstrated that the habitat intactness index maps derived can be a useful data source for mapping general patterns of degradation especially on a regional scale. Therefore, the methods tested in this study can be integrated in habitat mapping projects for effective conservation planning.
AFRIKAANSE OPSOMMING: Antropologiese invloede bedreig die toestand van savanna-ekostelsels in die meeste landelike landskappe regoor die wêreld. Doeltreffende monitering en bestuur van hierdie landskappe vereis op datum kaarte en inligting oor die toestand van die omgewing. Agteruitgangsdata van verskillende skale is dikwels nie geredelik beskikbaar nie weens 'n gebrek aan finansiële hulpbronne, tyd en tegniese vermoëns. Die doel van hierdie navorsing was om ‘n hoë resolusie multispektrale SPOT 5 beeld van 2010 en Landsat 8 beelde van 2014 te gebruik om die habitatongeskondenheid in die Bushbuckridge en Kruger Nasionale Park (KNP) streek te karteer. Die beelde is voorverwerk en gesegmenteer om sinvolle beeldvoorwerpe te skep deur die gebruik van ‘n voorwerp gebaseerde beeldanalise (OBIA) benadering. Vyf beeldafgeleides naamlik: helderheid, kompaktheid, NIR standaardafwyking, area en die genormaliseerde verskil plantegroei-indeks (NDVI) is geëvalueer vir hul vermoë om habitat ongeskondenheid te modelleer. ‘n Habitatongeskondenheidsindeks is gegenereer deur die kombinasie van die vyf afgeleides wat herskaal is na 'n datareeks van 0 tot 10, met 0 om totaal getransformeerde gebiede te verteenwoordig en 10 om ongestoorde natuurlike plantegroei voor te stel. Velddata is versamel in Oktober 2014 met gebruik van 'n veldassesseringsvorm, bestaande uit 10 vrae wat verband hou met die toestand van die ekostelsel, om vergelykings met die afstandswaarneming habitatongeskondenheidsindeks te fasiliteer. Beide satellietdatastelle het lae algehele akkuraatheid onder 30% opgelewer. Die resultate is deur die toepassing van 'n regstellingsfaktor tot die verwysing data verbeter. Die resultate het aansienlik verbeter met SPOT 5 wat die hoogste algehele akkuraatheid van 62.6% gelewer het. Die Landsat 8 beeld vir Mei 2014 bereik 'n verbeterde akkuraatheid van 60.2%. Die SPOT 5 resultate het geblyk om ‘n beter voorspeller van habitatongeskondenheid te wees as gevolg van ‘n beter akkuraatheid vir natuurlike plantegroei, terwyl Landsat meestal gedegradeerde gebiede kon voorspel. Hierdie bevindinge dui daarop dat die metode nie maklik oordraagbaar was tussen die verskillende satelliet sensors in hierdie savanna landskap nie, veral as gevolg van ‘n hoë voorkoms van bosbouplantasies en landelike nedersettings. Hierdie gebiede veroorsaak hoë weglatingsfoute in die verwysing data, wat lei tot gematigde algehele akkuraatheid. Dit word aanbeveel dat hierdie areas gemasker word tydens die ontleding om aanvaarbare akkuraatheid te verkry vir nie-getransformeerde gebiede. Nogtans het die studie getoon dat die afgeleide habitatongeskondenheidsindekskaarte ‘n nuttige bron van data kan wees vir die kartering van algemene patrone van agteruitgang, veral op 'n plaaslike skaal. Daarom kan die getoetsde metodes in die studie in habitatkarteringsprojekte vir doeltreffende bewaring beplanning geïntegreer word. Stellenbosch University https://scholar.sun.ac.za
Daye, Eureka Capri. "Correlations Between Childhood Obesity and Obesogenic Environmental Variables Within Durham County, North Carolina." ScholarWorks, 2015. https://scholarworks.waldenu.edu/dissertations/233.
Full textLeblois, Antoine. "Quels changements organisationels pour l'agriculture Africaine ? Essais sur les réformes des filières cotonnières et les assurances fondées sur des indices météorologiques." Phd thesis, Ecole des Hautes Etudes en Sciences Sociales (EHESS), 2012. http://tel.archives-ouvertes.fr/tel-00765746.
Full textBhuyan-Erhardt, Upasana Priyambada [Verfasser], Annette [Akademischer Betreuer] Menzel, Achim [Gutachter] Bräuning, and Annette [Gutachter] Menzel. "Drought quantification by multivariate indices and their validation against various environmental data / Upasana Priyambada Bhuyan-Erhardt ; Gutachter: Achim Bräuning, Annette Menzel ; Betreuer: Annette Menzel." München : Universitätsbibliothek der TU München, 2018. http://d-nb.info/1159703612/34.
Full textMavraganis, Theodoros. "An investigation of environmental impacts on sediments by marine cage fish farms using long term metadata analysis." Thesis, University of Stirling, 2012. http://hdl.handle.net/1893/9797.
Full textElia, Letizia. "PCA study of the interannual variability of the GPS height and environmental parameters." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/20438/.
Full textIlangakoon, Nayani Thanuja. "Relationship between leaf area index (LAI) estimated by terrestrial LiDAR and remotely sensed vegetation indices as a proxy to forest carbon sequestration." Bowling Green State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1402857524.
Full textAraÃjo, Ana Maria MaurÃcio. "Analysis of practices of management environmental and its impacts on productivity of shrimp farming in Ceara State." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=14305.
Full textFundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico
Shrimp farming has been consolidated as one of the most promising economic activities of the Northeast, where it has also been shown to be responsible for high negative impacts on the coastal environment. The research problem was to see how productivity is affected by the adoption of environmental management practices by analyzing the interaction between the productivity factor and other environmental management factors. To do so, we estimated the linear type regression analysis, to obtain a mathematical equation which quantify the relationship between productivity and other variables. The survey was conducted in 60 shrimp farms located in CearÃ, on farms intended only for fattening phase. Were raised environmental management practices adopted by producers and created management indices,where these indices were aggregated into a single index that along with the variables that describe the productive characteristics and location of the farms originated econometric linlog semi-logarithmic models. Regression analysis showed that the yield is better explained by the storage density, intensive production system periodic servicing. Environmental management is not configured as a factor that influences productivity, justifying the low level of environmental management by shrimp farmers.
A carcinicultura vem se consolidando como uma das mais promissoras atividades econÃmicas da RegiÃo Nordeste, onde tambÃm tem sido apresentada como responsÃvel por elevados impactos negativos sobre o ambiente costeiro. O problema da pesquisa consistiu em verificar como a produtividade à afetada pela adoÃÃo de prÃticas de gestÃo ambiental, atravÃs da anÃlise da interaÃÃo entre o fator produtividade e os outros fatores de gestÃo ambiental. Para isto, estimou-se uma anÃlise de regressÃo do tipo linear, para obter uma equaÃÃo matemÃtica que quantificasse o relacionamento entre produtividade e outras variÃveis. A pesquisa foi realizada em 60 fazendas de carcinicultura localizadas no CearÃ, em fazendas destinadas somente à fase de engorda. Foram levantadas as prÃticas de gestÃo ambiental adotadas pelos produtores e criados Ãndices de manejo, onde estes Ãndices foram agregados em um Ãnico Ãndice que juntamente com as variÃveis que descrevem as caracterÃsticas produtivas e de localizaÃÃo das fazendas originou modelos economÃtricos semi-logarÃtmicos lin-log. A anÃlise de regressÃo mostrou que a produtividade à melhor explicada pela densidade de estocagem, sistema de produÃÃo intensivo a assistÃncia tÃcnica periÃdica. A gestÃo ambiental nÃo se configura como um fator que influencie a produtividade, justificando o baixo nÃvel de gestÃo ambiental pelos carcinicultores.
Sakalauskienė, Sandra. "Kintančio klimato ir aplinkos veiksnių kompleksinio poveikio žirnių fiziologiniams rodikliams modeliavimas." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120130_134807-70023.
Full textThe aim of research – to investigate the differential and complex effect of environmental factors on the physiological responses of different genotypes of sowing pea (Pisum sativum L.) and to evaluate the impact of factor interaction among factors on physiological indices. The tasks of research: To identify the differentiated and integrated effect of different substrate moisture and UV-B radiation on different genotypes of sowing pea: 1.Under the current parameters of climatic factors; 2.Under the increased CO2 concentrations; 3.Under increased temperature; 4.Under predicted climatic factors conditions (increased CO2 concentration and temperature).
Gadbois, Nicholas Brian. "Using Chaetognatha as Indicators of Water Masses in the Florida Current, Broward County, Florida." NSUWorks, 2013. http://nsuworks.nova.edu/occ_stuetd/168.
Full textNordheim-Shelt, Barbara Ann. "Effects of Anthropogenic Activity on the Green Swamp Preserve Ecosystem." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/6734.
Full textVasques, Eltiza Rondino. "Qualidade ambiental urbana do Distrito da Liberdade, município de São Paulo (SP)." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/8/8135/tde-07032018-102753/.
Full textUrbanization, when not properly planned, potentiates adverse environmental impacts and damage to the health of the population because it brings with it changes in the biological and physical environment, due to the plugging of watercourses, changes in the geomorphology of the land, soil sealing, vegetation depletion, building verticalization, among other factors. By knowing the urban environmental quality in already established cities, one can identify negative environmental aspects and impacts resulting from human actions, as well as plan and propose improvements that enhance the well-being of the population and reduce health problems caused by urbanization. This work aims to determine the level of urban environmental quality, considering variables that cause negative and positive urban environmental impact, in the district of Liberdade, in the city of São Paulo, State of São Paulo, Brazil. For determining the level of environmental quality, the following environmental attributes were evaluated, adapted and expanded from Nucci (1996): potentially polluting usages; car and bus traffic; noise pollution; inundation and floods; population density; verticalization of buildings and constructions; water supply and sewage collection; solid waste collection; condition of sidewalks; and presence of free public spaces, green areas, vegetation cover and urban forestry. For each of these attributes, indices were determined to quantify and indicate the level of environmental quality of the areas studied. Since the occurrence of a potentially polluting usage interferes with the environment with various environmental impacts, potentially polluting usages have had a major influence on the classification of environmental quality in the district. The District of Liberdade features, overall, moderate traffic in all its streets and avenues, buses travel in most of the district\'s roads, and the pollution index exceeds the levels of assessment criteria for external environments determined by current regulations. Areas in which floods have been recorded are located predominantly in the North of the district, near the Moringuinho stream. The District of Liberdade is predominantly vertical, and this process tends to continue since there are several areas in the process of being regularized for the construction of new buildings. As for sanitation, 100% of the population are served by water supply, 98.5% for sewage collection and treatment, and 100% for household waste collection. The sidewalks in the district are predominantly of medium capability, areas with vegetation cover correspond to 8.3% of the district area, and the index of free public spaces is 2.12 m² per inhabitant.
Filipuci, Isil. "The effects of environmental stressors on coastal fish : in situ and experimental approach." Thesis, Littoral, 2011. http://www.theses.fr/2011DUNK0399/document.
Full textEstuaries and coastal areas are essential fish habitat as nursery and spawning but characterized by the presence of multiple interacting stressors, both natural and anthropogenic, which can represent potential threat toward aquatic organisms, especially for commercial fish species. In this context, the impacts of environmental stressors such as chemical contamination and Harmful algal blooms (HABs) have been studied by in situ and experimentally (microcosm and mesocosm) approaches on two fish species : European flounder (Platichthys flesus) and European sea bass (Dicentrarchus labrax). During this thesis, we used various indicators to determine fish responses to environmental stressors. Among these tools, we used the growth and conditions indices, molecular biomarkers and immunological parameters. In situ approach has been realized in two different systems anthropogenically influenced : one is heavily impacted system (Seine estuary) and the others are less impacted and/or considered as "clean" systems (Canche, Authie and Somme estuaries). As juvenile flounders concentrate in estuaries, we have chosen this species as a biological indicator to evaluate the quality of these estuarine habitats. This in situ study emphasized the negative impact of contaminants on the nursery function of estuaries. The Seine estuary exhibited the highest metals and PAHs contents in sediment compared to other estuaries and metal concentration in juvenile flounder of this estuary were also significantly higher than ones collected in the less polluted estuaries. In the same way, fish growth and condition indices were significantly lower in individuals from this estuary in spite of the sufficient food availability. To control environmental parameters such as hydrological parameters and food availability, a microcosm experiment was carried out on sea bass juveniles exposed to fresh sediment from five sites with different chemical concentrations using multi-biomarker approaches. After 21 days exposure, no metal accumulation in fish gills and any significant differences on the physiological performances and immune system responses of fish juveniles could be observed. On the other hand, responses of molecular biomarkers, particularly, EROD, GST and CAT activities increase with the chemical contamination gradient after 7days of exposure in sediment. This microcosm study confirmed the sensibility and relativity of short term molecular biomarkers responses to the chemical contamination. These two studies highlighted the complexity of the fish responses to environmental stressor due to the many variable environmental factors in situ and due to the selection of fish species (pelagic or benthic) and the exposure duration in controlled laboratory assays. Beside the impact of pollution on fish, Harmful algal blooms (HABs) are widespread along the eastern English Channel and may alter ecological functions of coastal zones and thus affecting nursery ground and fish populations. Nevertheless, the effects of two recurrent harmful algal blooms : a) Phaegocystis globosa and its degraded form transparent exopolymeric particles (TEP) with foam accumulation and b) Pseudo-nitzschia pseudodelicatissima (exponential versus senescent phase) was investigated on the growth and condition of sea bass juveniles. Both mesocosm experiments exhibited any negative impact on juvenile sea bass physiological performance, hence, survival and recruitment success. In conclusion, the results of this thesis contributed to improve the fish responses with multi-biomarker approaches to monitor and assess the health of fish communities and fish habitat quality, as well as the general ecological status of coastal zones and estuaries against the various environmental stressors
Kazlauskienė, Rasa. "Vyžuonos upės ekologinė charakteristika." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2006. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2006~D_20060609_123332-92183.
Full textPetalas, Kety Vasconcelos. "Estudo da sensaÃÃo tÃrmica e definiÃÃo de limites de conforto para espaÃos abertos na cidade de Fortaleza, CE." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=13754.
Full textAs reaÃÃes termofisiolÃgicas humanas Ãs condiÃÃes climÃticas sÃo comumente avaliadas a partir da aplicaÃÃo de Ãndices de conforto tÃrmico. Os resultados sÃo interpretados por meio de escalas de apreciaÃÃo definidas em funÃÃo do relacionamento entre o valor calculado e a sensaÃÃo tÃrmica relatada por pessoas adaptadas ao clima temperado. Entretanto, diversos estudos tÃm identificado um distanciamento entre estas respostas e apontado para a necessidade de ajustes. Fortaleza à uma cidade litorÃnea de clima tropical quente e Ãmido, naturalmente estressante devido ao calor. Por um lado, tem apresentando significativas alteraÃÃes climÃticas e, por outro, poucos estudos avaliam o impacto dessas alteraÃÃes na sensaÃÃo tÃrmica da populaÃÃo. Dessa forma, este estudo visa verificar a aplicabilidade de alguns Ãndices tÃrmicos e definir novos limites de conforto que possam ser aplicados em anÃlises bioclimÃticas de espaÃos abertos pÃblicos da cidade. Inicialmente, com o objetivo de identificar a percepÃÃo e preferÃncia tÃrmicas da populaÃÃo e coletar as informaÃÃes necessÃrias ao cÃlculo dos Ãndices, foram aplicados questionÃrios e realizadas mediÃÃes em campo em dias representativos das quatro estaÃÃes do ano, entre 2011 e 2012, das 09:00 Ãs 16:00h. A amostragem foi feita por conveniÃncia e considerou a populaÃÃo adulta, saudÃvel e aclimatada Ãs condiÃÃes climÃticas locais. Os Ãndices tÃrmicos foram calculados individualmente e todas as informaÃÃes foram tratadas estatisticamente a partir do teste chiquadrado, da anÃlise de variÃncia e da anÃlise de regressÃo probit. Os resultados mostram limites de conforto mais elevados e uma reduÃÃo na amplitude das faixas, identificando uma maior tolerÃncia ao calor em funÃÃo da abordagem adaptativa. TambÃm revelam a percepÃÃo do clima como levemente aquecido a quente, a preferÃncia da populaÃÃo por um ambiente tÃrmico mais fresco e indicam a necessidade de se preservar o sombreamento e a ventilaÃÃo proporcionados, respectivamente, pela arborizaÃÃo e pelas brisas marÃtimas e vento regional. Analisando o perÃodo de 1980 a 2010, observa-se que apesar da maioria dos dados situaremse entre os novos limites de conforto, hà indÃcios de uma sensaÃÃo tÃrmica mais aquecida. A definiÃÃo de novas faixas de conforto fornece subsÃdios aos planejadores urbanos no processo de tomada de decisÃo, permitindo uma avaliaÃÃo mais adequada dos espaÃos abertos, a comparaÃÃo de diferentes soluÃÃes e intervenÃÃes urbanas mais coerentes com o clima local.
Human termofisiolÃgicas reactions to climatic conditions are commonly evaluated from the application of thermal comfort indices. Results are interpreted by assessment scales defined by the relationship between the calculated value and the thermal sensation reported by people adapted to the temperate climate. However, many studies have identified a gap between these answers and pointed to the need for adjustments. Fortaleza is a coastal city of hot and humid tropical climate, Naturally stressful due to heat. On one hand, it presents significant climate change and, second, few studies have evaluated the impact of these changes in thermal sensation of the population. Thus, this study aims to verify the applicability of some thermal indices and set new limits of comfort that can be applied in bioclimatic analysis of public open spaces in the city. Initially, with the aim of identify the thermal perception and preference of the population and collect information necessary for the calculation of the indices, measurements questionnaires were administered and conducted in field representative days of the four seasons between 2011 and 2012, from 09:00 to 16: 00h. The sample was selected by convenience and considered the adult population, healthy and acclimatized to the local climate. The thermal indices were calculated individually and all information were statistically treated from chiquadrado test, analysis of variance and probit regression analysis. The results show higher comfort boundaries and decrease in amplitude of the tracks, identifying one greater heat tolerance according to the adaptive approach. They also reveal the perception climate as slightly warm to hot, the preference of the population for environment cooler thermal and indicate the need to preserve the shading and ventilation provided, respectively, for afforestation and by sea breezes and regional wind. Looking at the period 1980-2010, it is observed that although most situaremse data between the new limits of comfort, there is evidence of a warmer wind chill. The defining new comfort ranges provides subsidies to urban planners in the process decision-making, allowing a better assessment of open spaces, the comparison of different urban solutions and interventions more consistent with the local climate.
Schutt, Amanda E. "Using macroinvertebrate community composition to distinguish between natural and anthropogenic sedimentation." VCU Scholars Compass, 2012. http://scholarscompass.vcu.edu/etd/2896.
Full textVasconcelos, Ana Karine Portela. "Modelo para avaliaÃÃo e apoio ao plano de gerenciamento integrado de resÃduos sÃlidos urbanos municipais baseado em indicadores ambientais." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=12580.
Full textThis paper proposes the development of an evaluation model and support the integrated management of municipal solid waste, based on environmental indicators, specifically on the steps of collection, sweeping, weeding and mowing service in planning and cleaning. An opinion poll (Delphi method) was performed to determine the importance of each of the 24 (twenty four) indicators in the index of evaluation of the integrated management of municipal solid waste (IGU). Statistical analysis showed the ordinal logistic regression is more appropriate to the data of this research, with significance level 0.05 for the indicators, the final equation and 0.20 for the sub mathematical model. Thus, all indicators / sub-indicators are statistically significant. From this index, developed using an algorithm, a new computational tool, the software evaluation of the integrated management of municipal solid (SMSW) waste in order to create a database of public urban sanitation systems to form statistical basis of the information reported. The SMSW is free software, developed in PHP language, which provides its technological dissemination. It is expected that actual data of municipalities small and medium, are used in the model simulation process, proving its applicability, functionality and viability, and can therefore be used not only in a municipality, as well as in municipal consortia. this paper proposes the development of an evaluation model and support the integrated management of municipal solid waste, based on environmental indicators, specifically on the steps of collection, sweeping, weeding and mowing service in planning and cleaning. An opinion poll (Delphi method) was performed to determine the importance of each of the 24 (twenty four) indicators in the index of evaluation of the integrated management of municipal solid waste (IGU). Statistical analysis showed the ordinal logistic regression is more appropriate to the data of this research, with significance level 0.05 for the indicators, the final equation and 0.20 for the sub mathematical model. Thus, all indicators / sub-indicators are statistically significant. From this index, developed using an algorithm, a new computational tool, the software evaluation of the integrated management of municipal solid (SMSW) waste in order to create a database of public urban sanitation systems to form statistical basis of the information reported. The SMSW is free software, developed in PHP language, which provides its technological dissemination. It is expected that actual data of municipalities small and medium, are used in the model simulation process, proving its applicability, functionality and viability, and can therefore be used not only in a municipality, as well as in municipal consortia.
Tucker, David Ian. "The assessment of ecological condition in south-east Queensland, Australia: An evaluation of reliability across variable environments and surrogate efficacy for biodiversity values." Thesis, Queensland University of Technology, 2016. https://eprints.qut.edu.au/94285/1/David_Tucker_Thesis.pdf.
Full textDrevinskas, Dalius. "Biržų miesto įtaka Tatulos upės vandens kokybei." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050610_153812-42141.
Full textYoung, Andrea Ferraz. "Aplicação de indices relativos de vegetação e temperatura para estudo das mudanças do uso e ocupação do solo : estudo de caso de Curitiba (PR), 1986 a 2002." [s.n.], 2004. http://repositorio.unicamp.br/jspui/handle/REPOSIP/257217.
Full textTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agricola
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Resumo: O objetivo principal do trabalho foi o de criar índices relativos de vegetação e temperatura da superfície, sensíveis a mudanças, que sintetizassem as alterações ocorridas nos padrões da cobertura vegetal e urbanização, em função das transformações evidenciadas no tecido urbano do município de Curitiba (PR). Baseando-se na análise dos resultados obtidos através do cálculo desses índices, procedeu-se a análise conjunta com os dados de população. Portanto, esse processo envolveu o estudo dos padrões de uso do solo, das interações entre as diferentes classes inseridas na paisagem e de como esses padrões e interações mudam ao longo do tempo. Assim sendo, três regiões de Curitiba foram selecionadas por meio da definição de critérios específicos e comparadas em termos de mudanças de padrões e tendências.Imagens Landsat TM e ETM+ foram utilizadas para identificar diferentes padrões de cobertura da terra fornecendo uma classificação do uso do solo. Para isolar as áreas com vegetação das superfícies urbanas construídas, o Índice de Vegetação por Diferença Normalizada (NDVI) foi utilizado como um indicador da presença de vegetação, a partir do qual o índice de vegetação relativo (NDVI-R) foi criado. Ao mesmo tempo, valores das bandas termais do satélite Landsat (bandas 6) foram extraídos como indicadores das diferenças termais entre usos do solo, servido de base para a proposição de um índice de temperatura relativo (DN-R), que foi comparado com o índice de vegetação relativo (NDVI-R). Um banco de dados identificando as principais características da população de cada região foi construído, servindo de suporte para a análise entre as variáveis, fornecendo cenários da realidade e subseqüentes conflitos causados pelas mudanças na paisagem. Através da aplicação dessas técnicas foi possível verificar a importância do tamanho e distribuição das áreas de vegetação na caracterização das áreas urbanizadas e semi-urbanizadas. Esta abordagem comparativa demonstrou como a paisagem pode ser derivada do imageamento por satélite fornecendo uma representação das mudanças ocorridas na estrutura espacial urbana. Além disso, demonstrou como o rápido crescimento populacional e o desenvolvimento urbano tendem a competir com condições ambientais mais sensíveis, tais como parques e áreas de proteção ambiental. Todo o processo envolveu mudanças na composição, estrutura e função da paisagem, que ocorreu sobre um pano de fundo de manchas naturais remanescentes alteradas pelas transformações da morfologia urbana. A maioria dessas alterações evidencia mudanças no micro clima. Certamente, a análise das distribuições espaciais forneceu novos esclarecimentos sobre a estrutura da paisagem, que poderão ser explorados no planejamento do uso do solo. Esta é uma abordagem que fornece uma nova direção e oportunidade de pesquisa no que se refere a questões ambientais relativas ao processo de tomada de decisão, endereçada a objetivos ambientais com vistas ao desenvolvimento sócio-econômico, especialmente porque ressalta-se o fato de que não apenas os atributos físicos dos elementos da paisagem, mas também suas configurações espaciais são importantes determinantes na dinâmica do uso do solo
Abstract: The aim of this study was to propose relative vegetation and temperature indices which could reflect the changes occurred in the vegetation cover and urbanization patterns caused by transformations along the city of Curitiba (PR). Based on the results of these analysis it was achieved the analysis of the mainly population characteristics. Thus, it involved the study of land use patterns, the interactions between them within the landscape, and how these patterns and interactions change over the time. Therefore, three areas of Curitiba were selected by specific criteria and were studied and compared in terms of changing patterns and tendencies. Landsat TM and ETM+ images were used to identify different patterns of land cover providing a land use classification. In order to separate vegetated from built-up surfaces, the Normalized Difference Vegetation Index (NDVI) was used as an indicator of vegetation presence, from of what the relative vegetation index (NDVI-R) was created. At the same time, values from the thermal band (band 6) of Landsat satellite were extracted as an indicator of thermal differences between land uses, based on that a relative temperature index (DN-R) was proposed and compared with the relative vegetation index (NDVI-R). A database was built identifying the main characteristics of population of each area, serving as support for an analysis between variables, providing scenarios for subsequent conflicts caused by landscape changes. By applying these techniques it was possible to verify the importance of the size and distribution of the vegetated areas in characterizing urbanized and semi urbanized areas. This comparative approach has demonstrated how landscape can be derived from satellite imagery providing a representation of changes in the urban spatial structure. Besides, it has showed how the rapid population growth and urban development trends along the city compete with sensitive environmental conditions in areas such as municipal parks and conservation areas. Every process involved changes in landscape composition, structure and function, which occurred on a backdrop of natural remaining patches altered by transformations of urban morphology. Most of these changes shows up micro climate changes. Certainly, the analysis of spatial distributions provided new insights about the landscape structure, which could be exploited in the land use planning. This is an approach that provides a new direction and research opportunity in terms of environmental issues on the agenda of policy makers, addressed towards environmental goals for social-economic development proposals specially because it highlighted the fact that not only the physical attributes of the landscape elements but also their spatial configuration were important determinants of land use dynamics
Doutorado
Planejamento e Desenvolvimento Rural Sustentável
Doutor em Engenharia Agrícola