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McCool, Jon-Paul. "Paleoenvironmental Approaches in Arid Geoarchaeology: Assessment of Former Habitation Zones and Landscapes". University of Cincinnati / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1522057729882415.
Pełny tekst źródłaHempson, Gareth Peter. "Herbivore dynamics in an arid environment". Thesis, University of Edinburgh, 2011. http://hdl.handle.net/1842/5665.
Pełny tekst źródłaAralova, Dildora, Kristina Toderich, Ben Jarihani, Dilshod Gafurov, Liliya Gismatulina, Babatunde A. Osunmadewa i 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.
Pełny tekst źródłaDuncan, Corrine. "Seeds, soils and moisture : ecophysiology to inform mine site restoration in arid zones". Thesis, Federation University Australia, 2019. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/180639.
Pełny tekst źródłaDoctor of Philosophy
Rehman, Abdul [Verfasser]. "Epidemiology of Ticks and Tick-borne Pathogens in the Semi-arid and the Arid Agro-ecological Zones in Pakistan / Abdul Rehman". Berlin : Freie Universität Berlin, 2017. http://d-nb.info/1123998809/34.
Pełny tekst źródłaMohammed, R. "Assessment of the effect of climate change in anticipated water resources availability in arid climate zones". Thesis, University of Salford, 2017. http://usir.salford.ac.uk/44643/.
Pełny tekst źródłaHeshmatti, Gholam Ali. "Plant and soil indicators for detecting zones around water points in arid perennial chenopod shrublands of South Australia /". Title page, contents and summary only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phh584.pdf.
Pełny tekst źródłaErrata page is behind title page (p. i). Copies of author's previously published articles inserted. Includes bibliographical references (leaves 121-156).
Lima, Géssica Silva [UNESP]. "Caracterização físico-hídrica do solo do perímetro irrigado pontal sul por funções de pedotransferência". Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/144725.
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
A busca por meios que auxiliem a eficiência no uso dos recursos hídricos e conservação do solo é indispensável para a sustentabilidade da atividade agrícola na região semiárida brasileira. Assim sendo, estudos capazes de indicar e orientar medidas que viabilizem a produção de alimentos com maior eficiência no uso da água e auxiliem as políticas de gestão e planejamento dos recursos hídricos, são de grande relevância. Entre as ferramentas existentes que podem auxiliar no planejamento e no manejo do uso da água na agricultura, podemos citar o uso da geoestatística, análise de agrupamento e funções de pedotransferência. Assim, o objetivo deste trabalho foi realizar a caracterização da área do Perímetro Irrigado Pontal Sul, em Petrolina – PE. As análises e resultados estão divididos em três capítulos. O primeiro apresenta as zonas homogêneas dos atributos físicos do solo e da velocidade de infiltração básica da água no solo, obtidas por meio de análise geoestatística e análise multivariada de agrupamento fuzzy c-means. No segundo capítulo, foram desenvolvidas funções de pedotransferência (FPT) para estimativa dos teores de água do solo na capacidade de campo (CC), ponto de murcha permanente (PMP) e água disponível no solo (AD), utilizando técnicas de regressão múltipla, a partir dos dados de granulometria e densidade do solo. No terceiro capítulo, realizou-se o estudo da variabilidade espacial da umidade do solo por meio da geoestatística, utilizando dados observados e estimados por FPT para as umidades na CC, PMP e AD. Concluiu-se que é possível um zoneamento com menor quantidade de variáveis para auxílio no planejamento do uso de água no perímetro irrigado. Houve diferença significativa para todos os atributos entre as 3 zonas homogêneas geradas. A maioria das FPT desenvolvidas não apresentaram boa acurácia para estimar o teor de água no solo. Entre elas, os melhores desempenhos foram observados para estimativa da CC e PMP no banco de dados geral na camada de 0,0-0,20 m. Na análise geoestatística os parâmetros dos semivariogramas ajustados para o banco de dados medidos e banco de dados estimados, quando comparados, apresentaram menor variação para a camada de solo de 0-0,2 m.
The search for tools to assist the efficient use and conservation of water and soilresources is essential for sustainability of agriculture in the Brazilian semiarid region. Thus, studies to indicate and guide procedures that enable the production of food with greater efficiency about water use and assist management policies and planning of water resources, have great importance. Among the existing tools that can assist in the planning and management of water use in agriculture, we have the geostatistics, multivariated analysis and pedotransfer functions. Hence, the objective of this study was to describe the area of the Pontal Sul Irrigation Scheme, in Petrolina, state of Pernambuco, Brazil. The analysis and results are divided into three chapters. The first chapter presents homogeneous zones obtained by using geostatistical analysis and multivariate analysis of fuzzy c-means clustering of soil physical attributes and soil water infiltration rate. In the second chapter pedotransfer functions were developed (PTF) to estimate soil water content at field capacity (FC), wilting point (WP) and available soil water (AW), using multiple regression techniques, based on data of soil particle size and soil density. The third chapter presents the study of the spatial variability of soil moisture by using geostatistics with observed and estimated by PTF data for soil water content at FC, WP and AW. It was concluded that it is possible a zoning with fewer variables to aid in the planning of water use in the irrigation scheme area. All attributes presented significant differences among the three homogeneous zones delimited. Most of the PTF developed did not show good accuracy to estimate the soil water content. Among them, the best performances were observed to estimate the FC and WP in the overall database in the soil layer of 0-0.2 m. In the geostatistical analysis the parameters of the semivariograms adjusted for the database measured and for the estimated database, when compared, presented smaller variation for the soil layer of 00,2 m.
CNPq: 142174/2013-0
Rodríguez-Ferraro, Adriana. "Community ecology and phylogeography of bird assemblages in arid zones of northern Venezuela implications for the conservation of restricted-range birds /". Diss., St. Louis, Mo. : University of Missouri--St. Louis, 2008. http://etd.umsl.edu/r3141.
Pełny tekst źródłaPorto, Everaldo Rocha 1948. "An economic evaluation of selected soil and water management technologies for rainfed agriculture : a study case in the arid zones of Brazil". Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/191134.
Pełny tekst źródłaBaird, Douglas. "Neolithic chipped stone assemblages from the Azraq Basin, Jordan, and the significance of the Neolithic of the arid zones of the southern Levant". Thesis, University of Edinburgh, 1993. http://hdl.handle.net/1842/19860.
Pełny tekst źródłaAmogne, Firew Tegegne. "Evaluation of alternative feed resources for ruminants under arid zones of the tropics and sub-tropics: the case of cactus pear (Opuntia ficus-indica) in Ethiopia /". Berlin : Köster, 2007. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=015824295&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Pełny tekst źródłaLocquin-Linard, Monique. "1) etude de la mycoflore coprophile des zones arides et semi-arides du nord de l'afrique : 2) etude de l'amyloeidicite des "huelle cells" chez les emericella (ascomycetes)". Paris 6, 1988. http://www.theses.fr/1988PA066682.
Pełny tekst źródłaFetoui, Mondher. "Évaluer et suivre la désertification en zones arides tunisiennes pour accompagner l'aide à la décision : dynamiques interactives "Climat-Homme-Espace-Ressources naturelles" via les paysages". Thesis, Montpellier 3, 2011. http://www.theses.fr/2011MON30007/document.
Pełny tekst źródłaThe difficulty in understanding desertification in the Tunisian arid zones manifested in the complex interactions between socioeconomic and biophysical dynamics at different spatial and temporal scales. This work contribute on advanced understanding of the causes and processes and propose a systemic (climate-human-space-resource: CHER), geographical (landscape) and multi-actors approaches associated with methods (models and tools) reproducible for the assessment and monitoring (indicators) of risk of desertification, according to its interactive determinants on a territory scale. The landscape, as a source of information and the tool, is at the core of this work which led to i) the construction of explanatory models broken down by type of landscape (based on multidisciplinary characterization of landscapes), ii) the development of indexes of desertification risk (based on spatial integration of biophysical and socio-economic functioning through modeling), iii) the understanding and comparison of risks and their respective causes in the landscape types, and iv) the proposal of three new approaches / methods / tools to better assess the actions already implemented to combat desertification, to better target future actions and to better monitor desertification. The results have all been developed in interdisciplinarity and involve the mobilization of actors / decision makers in the sustainable management of territories to increase their usefulness in programs to combat desertification, to value environmental observatories and give them a role to support public policies
Gibson, Michelle Rene. "Movement ecology of Australian arid-zone birds". Thesis, Durham University, 2018. http://etheses.dur.ac.uk/12778/.
Pełny tekst źródłaGunawardene, Nihara. "Arid zone ant communities of Western Australia". Thesis, Curtin University, 2003. http://hdl.handle.net/20.500.11937/1178.
Pełny tekst źródłaGunawardene, Nihara. "Arid zone ant communities of Western Australia". Curtin University of Technology, Department of Environmental Biology, 2003. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=16212.
Pełny tekst źródłaMcGee, P. A. "Role of mycorrhizas in the regeneration of arid zone plants /". Title page, contents and summary only, 1987. http://web4.library.adelaide.edu.au/theses/09PH/09phm1448.pdf.
Pełny tekst źródłaLictevout, Elisabeth. "Accès à l'eau souterraine des populations vulnérables en zone aride : un problème de ressource, de gestion ou d'information ?" Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTG059/document.
Pełny tekst źródłaDrylands are home to 35% of the world's population and have among the highest levels of poverty. The small quantity and spatio-temporal heterogeneity of rainfall and runoff complicate not only the exploitation of the resource but also the understanding of those hydro-systems. However, since the origins of human history, in arid areas, people have been able to domesticate both surface and ground water the water. But the last decades have seen some arid areas become the scene of the development of industrial activities with intensive water uses that pose problems of management and access to water for users, particularly vulnerable populations. In the north of Chile, the Atacama Desert is one of the most arid areas of the world. Since the 1990s, with the installation of major mining projects, the region has experienced constant demographic and economic growth. Groundwater is extensively used for mining, domestic supply and agriculture. In order to understand if the problems of access to the groundwater of the Pampa del Tamarugal aquifer, in the Tarapacá region, are due to a limited resource, management issues, or to a lack of scientific information, a multi-disciplinary and interdisciplinary approach has been put in place. This approach consists of two main parts: first, the characterization of the groundwater resources of the Pampa del Tamarugal aquifer. For this, the existing raw data and their production conditions have been analysed and a new hydrometric network has been designed with a multi-criteria analysis coupled with a GIS analysis. Then, the realization of an updated piezometric map and the comparison of this map with the piezometric data of the last decades allow to understand the evolution of the aquifer. Based on a detailed geological study and hydrochemical and isotopic analysis of sources and boreholes, the recharge of the aquifer has been characterized with the preponderant role of the Mesozoic substratum on the flows especially in the Cenozoic cover. To compensate for the lack of historical data, a complementary approach has been put in place consisting of integrating the local and indigenous knowledge for the development of the conceptual hydrogeological model. On the other hand, the management of the groundwater resources of the Pampa del Tamarugal aquifer was analyzed, with particular attention to understanding the role of scientific and technical information and the strategies and discourses of the actors on this management and on uses. Finally, the study of an ancient water management system has generated the information necessary for its preservation as a water heritage an arid zone but also in order to reuse this system for the current management of the aquifer. This research has improved the understanding of the Pampa del Tamarugal recharge mechanisms, as well as the flow and evolution of groundwater resources under anthropogenic pressure in an arid and mountainous area such as northern Chile. They also clarified the constraints limiting access to water for vulnerable populations in the study area, and the role of scientific information in the management of groundwater resources
Bourhane, Zeina. "Anthropogenic impacts on microbial communities in agriculture aride zones". Electronic Thesis or Diss., Pau, 2021. http://www.theses.fr/2021PAUU3071.
Pełny tekst źródłaAquatic environments and their surroundings in arid and semi-arid regions are subjected to strong anthropogenic pressure resulting from agriculture and industrial activities. These unique areas are characterized by natural salinity and drastic seasonal fluctuations. The thesis provides information to better understand the factors shaping the microbial communities assemblages and their adaptation to pollutants under extreme environmental conditions, in order to examine the possibility to define microbial bioindicators. Such microbial bioindicators constitute promising tools for a careful environmental monitoring, which is required to evaluate the ecological status and environmental health of ecosystems in arid and semi-arid regions. In order to decipher the rules governing the assemblages of microbial communities inhabiting soils and sediments in arid and semi-arid zones, we investigated microbial communities around the Ichkeul Lake (Tunisia) and the “Saladas de Bujaraloz-Sástago” (Salineta, Monegros, Spain), two emblematic aquatic RAMSAR ecosystems. Metagenomic approaches, chemical analyses and integrative microbial indexes were combined to determine the relationships between microbial composition and environmental parameters. We identified the impacts of pollutants such as hydrocarbons, pesticides and heavy metals on microbial communities in soils and sediments and characterized microbial community dynamics according to seasonal variations. We defined relevant microbial bioindicators adapted, identified microbial specialists adapted to the environmental conditions, particularly to natural salinity. Finally, this study provides new insight for developing biomonitoring tools, requested for the management and restoration of aquatic ecosystems
Saccò, Mattia. "Functional ecology of calcrete aquifers in arid zone Western Australia". Thesis, Curtin University, 2020. http://hdl.handle.net/20.500.11937/80356.
Pełny tekst źródłaPistorius, Penny. "How air temperature affects flight initiation distance in arid-zone birds". Master's thesis, University of Cape Town, 2016. http://hdl.handle.net/11427/20993.
Pełny tekst źródłaMcGrath, Kate. "Long-term vegetation change in response to rest from grazing at Worcester Veld Reserve". Bachelor's thesis, University of Cape Town, 2002. http://hdl.handle.net/11427/25919.
Pełny tekst źródłaHartley, Mary Luisa. "Breeding system and genetic variation in Tylosema esculentum". Thesis, University of Sussex, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361301.
Pełny tekst źródłaJouini, Meriem. "Evaluation environnementale des pratiques agricoles et des aménagements de conservation par ACV : cas du bassin versant de Merguellil de la Tunisie centrale". Thesis, Montpellier, SupAgro, 2019. http://www.theses.fr/2019NSAM0001.
Pełny tekst źródłaIn semi-arid areas, agriculture is based on limited and fragile "water and soil" resources that are often overexploited. To ensure the sustainability of agricultural land management in rural areas, environmental assessment must be integrated to support decision-makers and local stakeholders in their decision-making. Due to its comprehensiveness, life cycle assessment (LCA) is one of the most widely used tools for environmental impact assessment. It has global approach (all potential environmental impacts are considered) and life cycle thinking ("cradle to grave"). However, LCA is difficult to apply in rural areas of developing countries. First, LCA requires a lot of data that is difficult to collect because of the diversity of small farming systems. Second, the results of LCA are difficult for non-specialists to interpret because of the complexity of its multiple indicators. Third, the processes included in LCA often do not correspond to the values and interests of stakeholders. Our study area is located upstream of the Merguellil catchment in central Tunisia, a Mediterranean country, characterized by a semi-arid climate with high variability of precipitation and is considered an important recharge area for aquifers. The upstream Merguellil brings together major environmental challenges such as variable and limited resources, over-exploitation of water resources, poor control of access to groundwater and accelerated soil degradation. These problems are also encountered throughout the Mediterranean region. The rapid expansion of conservation measures and of intensive irrigated cropping systems have raised the question of their environmental impacts and particularly on the soil resource. In the context of managing common "water and soil" resources and taking into account the diversity of agricultural practices within a rural area, it is important to assess the impacts at the scale of a territory. Our main objective is to provide decision-makers with knowledge on the environmental impacts of water and soil conservation works (WSCW) and the most relevant cropping systems by LCA at the territory level. In this thesis, we proposed a progressive and iterative participatory approach to analyze the territory in relation to its history, its components (living territories), its functions, its agricultural productions systems and its social components (families). We provided conceptual models shared by all stakeholders, we also collected and validated all the data necessary for the environmental assessment. An innovative methodological framework was proposed to link LCA with this participatory approach and made it possible to analyse the environmental impacts of all cropping systems. Finally, the consideration of the impacts of water and soil conservation works in LCA has been the subject of a specific development. Two indicators were explored using a distributed erosion model (LandSoil): erosion resistance and mechanical filtration. These developments provide all the methods and data to inform decision-making in the context of participatory land management, and in particular to define a sustainable development strategy for water and soil conservation works
Ffolliott, Peter F. "Arid Zone Forestry Program: State of Knowledge and Experience in North America". College of Agriculture, University of Arizona (Tucson, AZ), 1989. http://hdl.handle.net/10150/310780.
Pełny tekst źródłaJoshi, Bhaskar. "Estimation of diffuse vadose zone soil-water flux in a semi-arid region". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq23996.pdf.
Pełny tekst źródłaRamadan, Mohamad Fahmy A. "Interactive urban form design of local climate scale in hot semi-arid zone". Thesis, University of Sheffield, 2011. http://etheses.whiterose.ac.uk/15120/.
Pełny tekst źródłaJardine, Angela Beth. "Aqueous Phase Tracers of Chemical Weathering in a Semi-arid Mountain Critical Zone". Thesis, The University of Arizona, 2011. http://hdl.handle.net/10150/144594.
Pełny tekst źródłaAlbaradeyia, Issa. "Modélisation de l'érosion en zone montagneuse semi-aride". Lille 1, 2007. https://pepite-depot.univ-lille.fr/LIBRE/Th_Num/2007/50376-2007-Albaradeyia.pdf.
Pełny tekst źródłaBourzat, Daniel. "Les petits ruminants dans les systèmes de production des zones aride et semi-aride de Somalie et du Burkina Faso". Paris 12, 1989. http://www.theses.fr/1989PA120032.
Pełny tekst źródłaMcClurg, Lorne W. H. "Validation of a methodology for observing biomass dynamics in photographs of arid zone vegetation /". Title page, contents and abstract only, 1993. http://web4.library.adelaide.edu.au/theses/09AR/09arm1264.pdf.
Pełny tekst źródłaEl-Hames, A. S. "A physically-based model for the prediction of flood hydrographs in arid zone catchments". Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306990.
Pełny tekst źródłaLloyd, Penn. "A study of the ecology of the Namaqua Sandgrouse and other arid-zone birds". Doctoral thesis, University of Cape Town, 1998. http://hdl.handle.net/11427/9680.
Pełny tekst źródłaThis field study set out to identify the key ecological factors influencing the population dynamics of the Namaqua Sandgrouse Pterocles namaqua, through an investigation of diet and the nutritional demands during different stages of the annual cycle, the timing of breeding seasons and movements in relation to patterns of rainfall-dependent food availability, breeding success and the factors limiting productivity. In addition, the nesting habits and success of 11 coexisting arid-zone bird species were examined to test a variety of hypotheses regarding the relationship between nest-predation rate and nest site, nest density, predator-avoidance behaviour, stage of the nesting cycle and season, and degree of residency. Furthermore, the importance of rainfall as a breeding stimulus and its effects on clutch size were investigated for several species. The Namaqua Sandgrouse is an obligate granivore at all times, feeding on the seeds of annual plants, primarily of the family Fabaceae. Even while breeding, energy is the first-limiting nutrient in the foods of adults. Growing chicks have a proportionally greater protein demand, and are more dependent than adults on protein-rich legume seeds to satisfy first-limiting amino acid requirements. The chick growth phase was identified as the most nutritionally demanding stage in the annual cycle. The breeding season was found to be unexpectedly variable, and not consistently correlated with periods of peak food availability.
Sun, Bo. "Spatio-temporal modelling of landuse and land cover change in arid zone, northwest China". HKBU Institutional Repository, 2010. https://repository.hkbu.edu.hk/etd_ra/1163.
Pełny tekst źródłaQian, Jing. "Analyzing and modelling the spatio-temporal pattern of urban expansion in China's arid zone". HKBU Institutional Repository, 2012. https://repository.hkbu.edu.hk/etd_ra/1396.
Pełny tekst źródłaPiers, Laetitia. "Implications of potential biome boundary shifts for small mammal assemblages in the arid zone". University of the Western Cape, 2019. http://hdl.handle.net/11394/7051.
Pełny tekst źródłaDesertification deteriorates the landscape functionality of rangelands, affecting the resilience of biome boundaries which have a cascade effect not only in vegetation composition and characteristics but also in animal communities. The balance between plants and small mammals are essential in maintaining the functionality (i.e. nutrient cycling, soil stability, and water infiltration) of rangeland which includes the arid Steinkopf communal rangeland. However, the landscape functionality of rangelands has not been extensively studied, especially in communal areas where desertification is a serious concern since many people farm with livestock to survive. The aim of this study was to assess landscape functionality along an arid biome boundary and its relationship to small mammal assemblages. This study further aimed to provide a local landscape perspective of the current desertification process and projected expansion of the Desert Biome into more mesic biomes in South Africa. Three replicates for three Desert Biome, ecotone and Succulent Karoo Biome sites (27 sites in total) were selected to assess landscape functionality and survey small mammal assemblages over a one-year period. The change in landscape functionality between the three areas was assessed to determine the resilience of the biome boundary to desertification. For each small mammal survey, 216 live Sherman traps were set up during the summer and winter seasons to account for breeding, mortality, and possible migration. With the data, the body condition index, population density, and diversity were quantified.
Harrington, Rhidian. "The effects of artificial watering points on the distribution and abundance of avifauna in an arid and semi-arid mallee environment". Connect to this title online, 2002. http://repository.unimelb.edu.au/10187/2874.
Pełny tekst źródłaChebbi, Wafa. "Caractérisation des échanges d'eau et d'énergie dans une oliveraie pluviale en zone aride : modélisation et intégration des données de télédétection". Thesis, Toulouse 3, 2019. http://www.theses.fr/2019TOU30111.
Pełny tekst źródłaThe olive tree is a key perennial agrosystem for the economy of the Mediterranean basin with contrasting farming practices (rainfed sparse/intensive irrigated, co-planted ...). Known for its mechanisms of adaptation to water stress and its ability to survive for long periods under soil water limiting conditions, rainfed olive cultivation is dominant in this area, especially in Tunisia and the spacing between trees is a function of the distribution of the precipitation (from high density of plantation in the North (6 m) to very sparse in the South (25 m)) ensuring a volume of soil explored by the roots that is assumed to be enough to satisfy the water needs of the olive trees. However, it is subject to severe climatic pressure due to widespread dry spells, for which the frequency and intensity is likely to increase in the coming decades. The response of these sparse covers, where water is a limiting factor, to these climatic changes is unrecognized. In this context, this work aims to improve the current understanding of the physical processes governing the hydrological cycle and the development of vegetation in rainfed groves in central Tunisia. There is a twofold purpose: I / to test the vulnerability of these sparse olive groves to future conditions and ii / to make a decision support to farmers for the short (i.e., localized supplementary irrigation) and in the long term (in particular a decrease of the spacing between trees or the extension of irrigated area). To meet these goals, it is necessary to characterize the thermo-hydric functioning of olive trees, to identify the possibility of monitoring their current water status and to predict their responses to more severe future water conditions. As a first step, a dedicated experimental set up that includes eddy covariance and sap flow measurements has been installed. The collected data, which provide information on the exchange of energy and matter within the soil-plant-atmosphere continuum, were analyzed and their consistency was verified through a study of the different components of the water and energy balances at different spatial and time scales. In addition to direct measurements, proxidetection measurements are available and allow investigating the benefit of this powerful tool. Relationships between the estimated water stress indices (e.g., the difference between actual and potential transpiration) and the proxidetection indicators (surface temperature and photochemical reflectance index) were therefore established to detect critical thresholds beyond which a water supply becomes essential for the survival of the plant. In a second step, a soil-plant-atmosphere ISBA exchange model was calibrated and validated based on the large data set observed to reproduce the functioning of olive trees. This study emphasizes that the sparse nature of olive trees is nevertheless a challenge for the application of these tools because the fraction of vegetation cover (less than 7% for our Nasrallah site) is such that the surface is dominated by the bare soil functioning. Adjustments have therefore been proposed or even applied to these methods to adapt them to this low fraction vegetation cover. The database used in this study is published under the DOI: 10.6096/MISTRALS-SICMED.1479
Bouragba, Latifa. "Etude de la recharge artificielle des nappes en zone semi-aride : application au bassin du Souss-Maroc". Thesis, Besançon, 2011. http://www.theses.fr/2011BESA2046.
Pełny tekst źródłaThe Souss valley is bounded to the North by the High Atlas, to the South by the Anti-Atlasand to the East by the Siroua crystalline massif. The main geological formations arecalcareous marls of the Plio-Quaternary, the Turonian limestones that underlie them, and thefossil bed of River Souss formed by sands, sandstones and gravels from high permeabilityalluvium.The Souss aquifer is the most significant aquifer in southern Morocco, highly exploited by anagricultural exporting activity. Groundwater overexploitation induced a decreases ofpiezometric heads. Since 1970, water demand far exceeds renewable groundwater resources(balance defecit: 185 Mm3 in 1976, 358 Mm3 in 1998, and 228 Mm3 in 2003).The mean role of the Aoulouz dam is the artificial recharge of the Souss plain by release ofwater stored during rainy periods in the plain.In semi-arid areas, estimating recharge is often difficult, the spatial and temporal variabilitiesof recharge are generally high, and processes are varied.This work has enabled to characterize the impact of artificial recharge and to estimate therenewal of water in the aquifer.Water releases from Aoulouz dam has permitted an increase of the piezometric level on thehigh plain, about 85% of the water released are unfiltered in the first 80 Km between Aoulouzand Taroudant cities. However, the general water level decline goes on.The geochemical facies is mainly calcium bicarbonate type (dissolution of limestone), andlocally calcium sulphate type (evaporites of the High Atlas). Surface waters are a calcium andmagnesium bicarbonate types, acquired during their flow through limestones and dolomitesoutcrops.[...]
Al-Hasem, Ahmed M. "Coastal morphodynamics of an open-ended tidal channel in an arid and mesotidal environment : Al-Subiya Tidal Channel, Kuwait /". St. Lucia, Qld, 2001. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16464.pdf.
Pełny tekst źródłaEaston, Lyndlee Carol, i lyndlee easton@flinders edu au. "LIFE HISTORY STRATEGIES OF AUSTRALIAN SPECIES OF THE HALOPHYTE AND ARID ZONE GENUS FRANKENIA L. (FRANKENIACEAE)". Flinders University. Biological Sciences, 2008. http://catalogue.flinders.edu.au./local/adt/public/adt-SFU20081124.105244.
Pełny tekst źródłaPert, Petina Lesley, i petina pert@bigpond com. "Biodiversity Conservation at the Bioregional Level: a case study from the Burt Plain Bioregion of Central Australia". RMIT University. Mathematical and Geospatial Sciences, 2006. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20070209.120654.
Pełny tekst źródłaPierre, Caroline. "Variabilité interannuelle des émissions d'aérosols minéraux en zone semi-aride sahélienne". Phd thesis, Université Pierre et Marie Curie - Paris VI, 2010. http://tel.archives-ouvertes.fr/tel-00921688.
Pełny tekst źródłaKhoshbinroudi, Farangis. "La ville traditionnelle iranienne : conception compacte et bioclimatique en zone aride". Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLD005.
Pełny tekst źródłaMost of the energy consumption of buildings in Iran comes from oil, gas and electricity sources, while fossil fuel resources are running out in Iran. In addition to that, the country's average energy consumption is higher than other countries and even some oil-rich countries, while government subsidies and cheap oil and gas resources has exacerbated this critical situation. Buildings and houses with an average consumption share of 42.41 percent has a high share of energy consumption of the country and renewable energies are used only marginally. In contrast to this situation, Iranian cities, for thousands of years, have had a low consumption pattern of energy with the use of architectural and urban construction techniques and have come to a permanent and sustainable coexistence with their surroundings. This research seeks to understand the principles and techniques of constructing the traditional urban architecture of Yazd in the centre of Iran to provide in-depth insights toward energy optimization in urban areas. Moreover, the global methods of sustainable urban development are studied and compared to extract a set of guidelines for improving urban conditions in the traditional areas of Yazd. This research is fundamental in terms of orientation, and the purpose is exploration and being applicable. The compilation of the required data is done in two ways firstly) documentary method with the use of historical texts, authoritative writings of historians, and review of urban development plans such as comprehensive and detailed plans, and secondly field observations and meetings with practitioners and faculties have been conducted. Based on the gathered information, analysis of the current situation in the studied area has been carried out using qualitative descriptive method. Finally, with the consideration to the centralized urban management system of Iran, we proposed a method for transferring these results to the administrative sectors?
Abdillahi, Boeuh Ahmed. "La gestion durable de l'eau en zone aride : le cas de la ville de Djibouti". Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0104.
Pełny tekst źródłaThe issue of access to drinking water is one which is of paramount importance for thecountries of the sub-Saharan region where one individual out of three does not haveaccess to a water source. The aim of this thesis is to determine the conditions ofsustainable water management for the city of Djibouti. In this context, the issue ofwater supply is considered from an asset perspective in order to take into considerationthe peculiarities of this resource in a dry zone and its uses in particular in anenvironment marked by poverty. The main contribution of this thesis lies not only inthe analysis of the content of a sustainable water policy in Djibouti at a time when isthere is discrepancy between supply and demand, but also with an examination of theimplications of such a policy in terms of the pricing of this resource based on both itslevel of use and on a more even distribution within the population. The first part of thisthesis deals with an analysis of the access to this scarce resource according to how it ismanaged and measured with the help of indicators. A framework is then developedwith the help of some main concepts that are useful for defining a sustainablemanagement of water. The second part emphasizes the study of the determinants ofdemands in water and the choices in terms of the supply for Djibouti-city by using aneconometric study based on investigations into a sample of 400 households. Theassessment of multivariate probit model allows taking into account the connection of ahousehold to the service depends on its socio-economic markers. This thesis generatenew findings about household access to water supply and highlights the extent towhich such factor as income, the household size or the level of education of the head ofthe family influence the choices made by the household
Rasheeduddin, Mohammed. "A groundwater resources development study of a regional arid zone multi-aquifer system : Eastern Province, Saudi Arabia". Thesis, University of Birmingham, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.272620.
Pełny tekst źródłaPirie, Anne. "Chipped stone variability and approaches to cultural classification in the Epipalaeolithic of the south Levantine arid zone". Thesis, Durham University, 2001. http://etheses.dur.ac.uk/3777/.
Pełny tekst źródłaBourzat, Daniel. "Les Petits ruminants dans les systèmes de production des zônes aride et semi-aride de Somalie et du Burkina Faso". Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376122191.
Pełny tekst źródłaGreenville, Aaron C. "The role of ecological interactions: how intrinsic and extrinsic factors shape the spatio-temporal dynamics of populations". Thesis, The University of Sydney, 2015. http://hdl.handle.net/2123/13561.
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