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Dissertations / Theses on the topic 'Arides Gebiet'

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Published: 4 June 2021
Last updated: 2 February 2022

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1

Müller, Thomas. "Recharge and residence times in an arid area aquifer." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-119348.

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Deteriorating water quality in the face of a rising demand for agricultural products triggered interest in the groundwater resources of the Najd dessert, an arid region of southern Oman. Groundwater in this area usually is abstracted from one of the largest aquifers on the Arabian Peninsula, the Umm Er Radhuma aquifer. Increased discharge stands in contrast to limited precipitation: the monsoon is an annual event but it is regionally limited; cyclones infrequently occur within the range of three to seven years. Both are possible sources for groundwater recharge in the Najd. With these precondi
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2

Baier, Sebastian. "Projektstudie zum Einsatz von Kies-Luft-Speichern in Gebieten mit aridem Klima." Master's thesis, Universitätsbibliothek Chemnitz, 2007. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-200701980.

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3

Baier, Sebastian Masri Radwan al Strauch Jörg. "Studie zum Einsatz von Kies-Luft-Speichern in Gebieten mit aridem Klima." [S.l. : s.n.], 2007.

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4

Bardowicks, Karin [Verfasser]. "PESTRISK : ein GIS-basiertes Modell zur Risikoabschätzung der Auswirkungen von Pflanzenschutzmitteln auf die Wasserressourcen in ariden und semi-ariden Gebieten unter Berücksichtigung limitierter Datengrundlagen / Karin Bardowicks." Hannover : Technische Informationsbibliothek und Universitätsbibliothek Hannover (TIB), 2011. http://d-nb.info/1017988897/34.

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5

Georges, Marwan [Verfasser], and Per [Akademischer Betreuer] Krusche. "Entwicklung von Stallgebäuden zur Milchviehhaltung unter Berücksichtigung der klimatischen Bedingungen in ariden und semiariden Gebieten / Marwan Georges ; Betreuer: Per Krusche." Braunschweig : Technische Universität Braunschweig, 2009. http://d-nb.info/117582920X/34.

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6

Aly, Ahmed Mohamed Kamal Abdelaal. "Regeneration selektierter adulter Pyrus-Wildformen von Trockenstandorten und Prüfung ausgewählter Klone auf Salztoleranz für die Verwendung als Unterlage in ariden Gebieten." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=972546332.

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7

Aly, Ahmed Mohamed Kamal Abdelaal. "Regeneration selektierter adulter Pyrus-Wildformen von Trockenstandorten und Prüfung ausgewählter Klone auf Salztoleranz für die Verwendung als Unterlage in ariden Gebieten." Doctoral thesis, Humboldt-Universität zu Berlin, Landwirtschaftlich-Gärtnerische Fakultät, 2004. http://dx.doi.org/10.18452/15043.

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In der vorliegenden Arbeit wurde die Reaktion verschiedener Pyrus-Genotypen auf Salzstress in vitro und in vivo überprüft. Es wird ein methodisch wertvoller Beitrag zur In-vitro-Vermehrung adulter Pyrus-Klone und zu Salzstressuntersuchungen in vitro und in vivo bei Gehölzen geleistet. Die adulten Pyrus-Klone konnten erfolgreich in vitro vermehrt werden. Die In-vitro-Salzprüfung verschiedener Pyrus-Genotypen erwies sich als Schnelltest nutzbar zur Feststellung der genotypspezifischen Reaktion auf Salzstress. Es wurde festgestellt, dass die selektierten Klone von einem Trockenstandort aus dem Na
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8

Halem, Mohamed Ahmed Awad Abdel. "Environmental and socio-economic assessment of arid land farming : a case from Lake Nasser region in Egypt /." Weikersheim : Margraf, 2006. http://catalog.hathitrust.org/api/volumes/oclc/76686116.html.

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9

Abushandi, Eyad. "Rainfall-runoff modeling in arid areas." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2011. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-68530.

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The Wadi Dhuliel catchment/ North east Jordan, as any other arid area has distinctive hydrological features with limited water resources. The hydrological regime is characterized by high variability of temporal and spatial rainfall distributions, flash floods, absence of base flow, and high rates of evapotranspiration. The aim of this Ph.D. thesis was to apply lumped and distributed models to simulate stream flow in the Wadi Dhuliel arid catchment. Intensive research was done to estimate the spatial and temporal rainfall distributions using remote sensing. Because most rainfall-runoff models w
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10

Aly, Ahmed Mohamed Kamal Abdelaal [Verfasser], Ahmed [Gutachter] Abou-Salha, and H. H. [Gutachter] Jesch. "Regeneration selektierter adulter Pyrus-Wildformen von Trockenstandorten und Prüfung ausgewählter Klone auf Salztoleranz für die Verwendung als Unterlage in ariden Gebieten / Ahmed Mohamed Kamal Abdelaal Aly ; Gutachter: Ahmed Abou-Salha, H. H. Jesch." Berlin : Humboldt-Universität zu Berlin, 2004. http://d-nb.info/1207659789/34.

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11

Güntner, Andreas. "Large-scale hydrological modelling in the semi-arid north-east of Brazil." Phd thesis, Universität Potsdam, 2002. http://opus.kobv.de/ubp/volltexte/2005/62/.

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Semi-arid areas are, due to their climatic setting, characterized by small water resources. An increasing water demand as a consequence of population growth and economic development as well as a decreasing water availability in the course of possible climate change may aggravate water scarcity in future, which often exists already for present-day conditions in these areas. Understanding the mechanisms and feedbacks of complex natural and human systems, together with the quantitative assessment of future changes in volume, timing and quality of water resources are a prerequisite for the develop
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12

Gerner, Alexander. "A novel strategy for estimating groundwater recharge in arid mountain regions and its application to parts of the Jebel Akhdar Mountains (Sultanate of Oman)." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-137045.

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In arid regions, mountain catchments are the major contributor to the total natural water yield. Due to generally low groundwater tables, subsurface underflow - referred to as mountain-front recharge - is important in distinction to the surface runoff at the mountain front. The extent of the groundwater basin is hereby often vague. Approaches to assess mountain-front recharge are mostly based on groundwater data and integrate over time and space. This, however, cannot provide prognostic and time-dependent estimates of subsurface inflow to the adjacent alluvial basin aquifer. Consequently, the
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13

Becker, Elbe. "The occurrence of African horse sickness in Hartmann's mountain zebra and its Culicoides vector in the south-western Khomas Region, Namibia / Elbe Becker." Thesis, North-West University, 2011. http://hdl.handle.net/10394/9508.

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African horse sickness (AHS) was reported in the south-western Khomas Region, central Namibia (22° 24.063´ S, 17° 01.791´ E; 23° 32.617´ S, 15° 53.870´ E), contrary to expectations that the arid conditions in the area would limit its occurrence. This prompted investigation into the occurrence of AHS in horses, a possible reservoir animal, the Hartmann’s mountain zebra (Equus zebra. hartmannae) and the occurrence of the Culicoides midge vector (Diptera: Ceratopogonidae) of the disease in the area. Questionnaires were used to explore the geographic characteristics of the study area, the occurren
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14

Walther, Marc. "Variable-Density Flow Processes in Porous Media On Small, Medium and Regional Scales." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-153365.

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Nowadays society strongly depends on its available resources and the long term stability of the surrounding ecosystem. Numerical modelling has become a general standard for evaluating past, current or future system states for a large number of applications supporting decision makers in proper management. In order to ensure the correct representation of the investigated processes and results of a simulation, verification examples (benchmarks), that are based on observation data or analytical solutions, are utilized to evaluate the numerical modelling tool. In many parts of the world, groundwa
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15

Müller, Thomas. "Recharge and residence times in an arid area aquifer." Doctoral thesis, 2012. https://tud.qucosa.de/id/qucosa%3A27074.

Full text
Abstract:
Deteriorating water quality in the face of a rising demand for agricultural products triggered interest in the groundwater resources of the Najd dessert, an arid region of southern Oman. Groundwater in this area usually is abstracted from one of the largest aquifers on the Arabian Peninsula, the Umm Er Radhuma aquifer. Increased discharge stands in contrast to limited precipitation: the monsoon is an annual event but it is regionally limited; cyclones infrequently occur within the range of three to seven years. Both are possible sources for groundwater recharge in the Najd. With these precon
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16

Niklaus, Markus. "Modellierung der vegetativen Produktivität zur Bewertung der Landdegradation im ariden und semi-ariden südlichen Afrika." Doctoral thesis, 2013. http://hdl.handle.net/11858/00-1735-0000-0022-5E04-7.

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17

Rachmansyah, Arief [Verfasser]. "Standortsuche für Siedlungsabfalldeponien im Surabaya-Gebiet und dessen Umgebung, Indonesien, sowie Evaluierung der Tonsedimente als geologische Barriere und Rohstoff für mineralische Deponiebasisabdichtungen / vorgelegt von Arief Rachmansyah." 2001. http://d-nb.info/962340545/34.

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18

Aly, Ahmed Mohamed Kamal Abdelaal [Verfasser]. "Regeneration selektierter adulter Pyrus-Wildformen von Trockenstandorten und Prüfung ausgewählter Klone auf Salztoleranz für die Verwendung als Unterlage in ariden Gebieten / von Ahmed Mohamed Kamal Abdelaal Aly." 2004. http://d-nb.info/972546332/34.

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19

Gerner, Alexander. "A novel strategy for estimating groundwater recharge in arid mountain regions and its application to parts of the Jebel Akhdar Mountains (Sultanate of Oman)." Doctoral thesis, 2013. https://tud.qucosa.de/id/qucosa%3A27726.

Full text
Abstract:
In arid regions, mountain catchments are the major contributor to the total natural water yield. Due to generally low groundwater tables, subsurface underflow - referred to as mountain-front recharge - is important in distinction to the surface runoff at the mountain front. The extent of the groundwater basin is hereby often vague. Approaches to assess mountain-front recharge are mostly based on groundwater data and integrate over time and space. This, however, cannot provide prognostic and time-dependent estimates of subsurface inflow to the adjacent alluvial basin aquifer. Consequently, the
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20

Alkhoury, William. "Hydrological modelling in the meso scale semiarid region of Wadi Kafrein / Jordan -The use of innovative techniques under data scarcity." Doctoral thesis, 2011. http://hdl.handle.net/11858/00-1735-0000-0006-B2FB-6.

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21

Walther, Marc. "Variable-Density Flow Processes in Porous Media On Small, Medium and Regional Scales." Doctoral thesis, 2013. https://tud.qucosa.de/id/qucosa%3A28302.

Full text
Abstract:
Nowadays society strongly depends on its available resources and the long term stability of the surrounding ecosystem. Numerical modelling has become a general standard for evaluating past, current or future system states for a large number of applications supporting decision makers in proper management. In order to ensure the correct representation of the investigated processes and results of a simulation, verification examples (benchmarks), that are based on observation data or analytical solutions, are utilized to evaluate the numerical modelling tool. In many parts of the world, groundwa
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