Rozprawy doktorskie na temat „Drought”
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Guinan, Patrick E. "Seasonally adjusted index for projecting agricultural drought /". free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p3164510.
Pełny tekst źródłaQuiring, Steven M. "Developing a real-time agricultural drought monitoring system for Delaware". Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 2.86 Mb , 207 p, 2005. http://wwwlib.umi.com/dissertations/fullcit/3181867.
Pełny tekst źródłaHassan, Gana Abdullahi. "Drought and drought mitigation in Yobe State, Nigeria". Thesis, University of Wolverhampton, 2018. http://hdl.handle.net/2436/621793.
Pełny tekst źródłaBellamy, John Thomas. "Drought frequency and risk analysis in the Upper Green River Basin, Wyoming". Laramie, Wyo. : University of Wyoming, 2008. http://proquest.umi.com/pqdweb?did=1798480881&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.
Pełny tekst źródłaSprinkle, Jim. "Supplementation During Drought". College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 1998. http://hdl.handle.net/10150/144719.
Pełny tekst źródłaBreeding failure is the most important adverse consequence to the cow herd during drought. This is due to reduced forage quality and availability, resulting in nutritional stress. This publication provides information on how to supplement cattle to meet its nutrient requirements during drought.
Abraham, Joseph. "Assessing drought vulnerability". Diss., The University of Arizona, 2006. http://hdl.handle.net/10150/196047.
Pełny tekst źródłaSprinkle, Jim E. "Supplementation During Drought". College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2011. http://hdl.handle.net/10150/239551.
Pełny tekst źródłaSingh, Kamal. "Drought, relief and rural communities : special report no. 9". Association for Rural Advancement (AFRA), 1993. http://hdl.handle.net/10962/68651.
Pełny tekst źródłaLohani, Vinod K. "Characterization of palmer drought index as a precursor for drought mitigation". Diss., Virginia Tech, 1995. http://hdl.handle.net/10919/39044.
Pełny tekst źródłaPh. D.
Chbouki, Nabil. "Spatio-temporal characteristics of drought as inferred from tree-ring data in Morocco". Diss., The University of Arizona, 1992. http://hdl.handle.net/10150/185851.
Pełny tekst źródłaBatlang, Utlwang. "Identification of Drought-Responsive Genes and Validation for Drought Resistance in Rice". Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/26020.
Pełny tekst źródłaPh. D.
Shrestha, Alen. "ANALYZING THE PAST AND FUTURE DROUGHT SITUATIONS USING HIGH RESOLUTION DROUGHT INDEX". OpenSIUC, 2020. https://opensiuc.lib.siu.edu/theses/2757.
Pełny tekst źródłaYang, Wen. "Drought Analysis under Climate Change by Application of Drought Indices and Copulas". PDXScholar, 2010. https://pdxscholar.library.pdx.edu/open_access_etds/716.
Pełny tekst źródłaGaffney, Benjamin (Benjamin Michael) 1970, i Manal 1976 Hatem-Moussallem. "Cyprus drought water bank". Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/67164.
Pełny tekst źródłaIncludes bibliographical references (p. 119-123).
Water banking is a proven water management strategy that facilitates the voluntary temporary reallocation of water from willing sellers to willing buyers. In exchange for compensation, farmers (sellers) may choose to allow their irrigation water to be reallocated to cities, towns, industries, and tourist hotels (buyers) that are in need. We have studied the application of water banking concepts to the water management of the island of Cyprus. The Republic of Cyprus is currently facing significant water scarcity problems. Water banking is a new idea in the area. We propose that an emergency drought water bank encourages farmers to become part of the solution to the water problems on the island. The Cypriot government is currently turning to desalination of seawater to meet its water supply needs. This process offers a reliable but very expensive source of water. The water from the most recent desalination contract will cost the government more than CY£ 61 million in total over the next ten years, assuming that the price of oil does not rise. In order to minimize the cost of water resources development, we propose forward-thinking policies such as water banking to reduce the need for additional desalination plants. This thesis details the goals, structure, and operational strategy for a water bank in Cyprus. We recommend that the Government seriously consider the immediate application of water banking. A small-scale pilot project in a single irrigation district would allow the concept to be validated in the field. Water banking holds great promise as a means of helping to provide Cyprus with the water it needs for continued growth and prosperity.
by Benjamin Gaffney & Manal Hatem-Moussallem.
M.Eng.
Kaniewski, Connie. "Understanding Flash Drought Spatial Extent, Duration, and Meteorological Drivers". OpenSIUC, 2021. https://opensiuc.lib.siu.edu/theses/2876.
Pełny tekst źródłaKleopa, Xenia A. "Optimal reservoir operation for drought management". Ohio : Ohio University, 1990. http://www.ohiolink.edu/etd/view.cgi?ohiou1183650664.
Pełny tekst źródłaMullen, Caroline. "An investigation into the effects of drought and drought recovery on macroinvertebrate communities". Thesis, University of Birmingham, 2016. http://etheses.bham.ac.uk//id/eprint/7137/.
Pełny tekst źródłaDube, Carolina. "The impact of Zimbabwe's drought policy on Sontala rural community in Matabeleland South Province /". Link to the online version, 2008. http://hdl.handle.net/10019/1768.
Pełny tekst źródłaDriver, Lucas J. "Dynamics of Stream Fish Metacommunities in Response to Drought and Re-connectivity". Thesis, University of North Texas, 2015. https://digital.library.unt.edu/ark:/67531/metadc804923/.
Pełny tekst źródłaKebede, Yohannes. "Economic evaluation of post-drought recovery agricultural project : the case of Tegulet and Bulga District, Shoa Province, Ethiopia". Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63894.
Pełny tekst źródłaTahkokorpi, M. (Marjaana). "Anthocyanins under drought and drought-related stresses in bilberry (Vaccinium myrtillus L.)". Doctoral thesis, University of Oulu, 2010. http://urn.fi/urn:isbn:9789514262050.
Pełny tekst źródłaLeelaruban, Navaratnam. "Spatial Scale Dependence of Drought Characteristics and Impact of Drought on Agriculture and Groundwater". Diss., North Dakota State University, 2016. http://hdl.handle.net/10365/25912.
Pełny tekst źródłaNorth Dakota Water Recourses Research Institute (ND WRRI) Fellowship Program
North Dakota State University Graduate School Doctoral Dissertation Award
Cox, Jonathan Peter. "Hydrometeorological aspects of drought management". Thesis, University of Salford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386429.
Pełny tekst źródłaOsman, Mohamoud, Albert Dobrenz, Haile Tewolde i Robert Voigt. "Drought Tolerance in Pearl Millet". College of Agriculture, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/200578.
Pełny tekst źródłaGutiérrez, Hernández Julián Eli. "Drought Indices in Panama Canal". Master's thesis, Česká zemědělská univerzita v Praze, 2015. http://www.nusl.cz/ntk/nusl-258961.
Pełny tekst źródłaRen, Xiaomeng, i University of Lethbridge Faculty of Arts and Science. "Agricultural vulnerability to drought in southern Alberta : a quantitative assessment". Thesis, Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 2007, 2007. http://hdl.handle.net/10133/398.
Pełny tekst źródłaxii, 127 leaves : ill. ; 29 cm.
Ocheltree, Troy W. "Growth and survival during drought: the link between hydraulic architecture and drought tolerance in grasses". Diss., Kansas State University, 2012. http://hdl.handle.net/2097/13803.
Pełny tekst źródłaDepartment of Agronomy
P.V. Vara Prasad
The pathway for the movement of water through plants, from the soil matrix to the atmosphere, constitutes the hydraulic architecture of a plant. The linkage between the hydraulic architecture of woody plants and drought tolerance has received considerable attention, but much less work has been done on grasses. I investigated the linkage between the hydraulic architecture of grasses to physiological patterns of water use across a range of species and conditions. The rate of stomatal conductance (g[subscript]s) and photosynthesis (A) increased acropetally along the leaves of 5 grass species, which is a unique feature of this growth form. The internal structure of leaves also changed acropetally in order to minimize the pressure gradient across the mesophyll that would otherwise occur as a result of increasing g[subscript]s. The resistance to water movement through the mesophyll represented 80-90% of leaf resistance in six genotypes of Sorghum bicolor L. (Moench). This resistance was most important in controlling g[subscript]s and A when water was readily available, but as soil-moisture decreased it was the efficient transport of water through the xylem that was most important in maintaining plant function. I also investigated the relationship between hydraulic architecture and stomatal responses of grasses to increasing Vapor Pressure Deficit (D). Grasses with a larger proportion of their hydraulic resistance within the xylem were less sensitive to increasing D and plants with high root conductance maintained higher rates of gas exchange D increased. Finally, I investigated the tolerance of grasses to extreme drought events to test if there was a trade-off between drought tolerance and growth in grasses. Plants with drought tolerant leaf traits typically sacrificed the ability to move water efficiently through their leaves. Having drought tolerant leaves did not limit the plants ability to have high rates of gas exchange, and, in fact, the most drought tolerant plants had the high rates of g[subscript]s when expressed on a mass basis. Leaf-level drought tolerance did contribute to species’ occurrence, as the drought intolerant species I studied are not commonly found in low precipitation systems. The results presented here highlight the importance of studying the hydraulic architecture of plants to provide a better understanding of what controls plant function across a range of environmental conditions.
Gebeyehu, Setegn. "Physiological response to drought stress of common bean (Phaseolus vulgaris L.) genotypes differing in drought resistance". Göttingen Cuvillier, 2006. http://geb.uni-giessen.de/geb/volltexte/2006/3726/index.html.
Pełny tekst źródłaMoore, David L. "Reservoir management during drought an expert system approach". Ohio : Ohio University, 1993. http://www.ohiolink.edu/etd/view.cgi?ohiou1175718241.
Pełny tekst źródłaStenson, Jennifer R. "A study of hydrologic drought using streamflow as an indicator". Ohio : Ohio University, 1989. http://www.ohiolink.edu/etd/view.cgi?ohiou1182521390.
Pełny tekst źródłaStahl, Kerstin. "Hydrological drought a study across Europe /". [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=963810138.
Pełny tekst źródłaMatthews, Cushla Emilja. "Drought contingency planning in Ontario muncipalities". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ61925.pdf.
Pełny tekst źródłaCook, H. F. "Assessment of drought resistance in soils". Thesis, University of East Anglia, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374255.
Pełny tekst źródłaGillespie, Jason Carter. "Assessing Drought Flows For Yield Estimation". Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/30926.
Pełny tekst źródłaMaster of Science
Harb, Amal Mohammad. "Dissection of Drought Responses in Arabidopsis". Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/77148.
Pełny tekst źródłaPh. D.
King, James Allen. "Optimal reservoir operation for drought management". Ohio University / OhioLINK, 1990. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1183649698.
Pełny tekst źródłaParham, Antoinette D. "Drought: Construction of a Social Problem". Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc955027/.
Pełny tekst źródłaRay, Dennis, i Margaret Livingston. "Response of Guar to Drought Conditions". College of Agriculture, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/200577.
Pełny tekst źródłaMcDaniel, R. G., i A. K. Dobrenz. "Physiological Studies of Cotton Drought Tolerance". College of Agriculture, University of Arizona (Tucson, AZ), 1992. http://hdl.handle.net/10150/208659.
Pełny tekst źródłaBIANCHI, DAVIDE. "GRAPEVINE ROOTSTOCK CHARACTERIZATION FOR DROUGHT TOLERANCE". Doctoral thesis, Università degli Studi di Milano, 2021. http://hdl.handle.net/2434/896313.
Pełny tekst źródłaAhmadi, Behzad. "On the Drought Recovery and Resiliency: How Terrestrial and Riverine Ecosystems Recover from Agricultural and Hydrological Droughts". PDXScholar, 2019. https://pdxscholar.library.pdx.edu/open_access_etds/4834.
Pełny tekst źródłaBergman, Crystal Jane. "A Survey of Drought Impacts and Mitigation Planning in Kentucky". TopSCHOLAR®, 2009. http://digitalcommons.wku.edu/theses/95.
Pełny tekst źródłaKarlina. "ASSESSMENT OF HYDRO-METEOROLOGICAL DROUGHTS RELATED TO ENSO IN LOMBOK AND SUMATRA ISLANDS, INDONESIA". Kyoto University, 2018. http://hdl.handle.net/2433/231991.
Pełny tekst źródłaKyoto University (京都大学)
0048
新制・課程博士
博士(工学)
甲第21058号
工博第4422号
新制||工||1687(附属図書館)
京都大学大学院工学研究科社会基盤工学専攻
(主査)教授 寶 馨, 教授 堀 智晴, 准教授 佐山 敬洋
学位規則第4条第1項該当
Lennard, A. T. "An investigation of drought in the Severn Trent Water region : re-evaluating drought severity, characteristics and generating mechanisms". Thesis, University of Liverpool, 2016. http://livrepository.liverpool.ac.uk/3004783/.
Pełny tekst źródłaDíaz, Loaiza Manuel Andrés. "Drought and flash floods risk assessment methodology". Doctoral thesis, Universitat Politècnica de Catalunya, 2015. http://hdl.handle.net/10803/325143.
Pełny tekst źródłaLes inundacions i les sequeres són alguns dels desastres més catastròfics per a la humanitat, promitjant anualment al voltant d'1 a 5 x 10³ milions de dòlars i 6 a 8 x 10³ milions de dòlars en pèrdues econòmiques respectivament. Per combatre aquests fenòmens, la ciència de la "gestió del riscs" ha anat desenvolupant al llarg dels últims anys, permetent-nos quantificar el risc i els possibles beneficis en el cas que algunes mesures siguin implementades (tals com mesures de mitigació/adaptació etc.). En el present document es presenta una metodologia per a la quantificació del risc considerant la implementació de mesures no-estructurals (NSM). Així mateix, es va desenvolupar una anàlisi d'incertesa per identificar les fonts de variància sobre els resultats en el càlcul del risc. Amb l'indicador EAD (Expected Annual Damage), es va realitzar una anàlisi per determinar el període de tornada òptima en el disseny de mesures estructurals, com a resultat del mateix, es proposa un nou indicador: l "Optimal Expected Annual Damage" (OEAD). En el present document s'exposen els resultats per a la quantificació del risc pluvial. Aquests resultats inclouen mesures estructurals i no-estructurals d'acord amb la metodologia desenvolupada per a la conca d'Arenys de Munt a Catalunya-Espanya. Per incloure en el càlcul del risc a les mesures no-estructurals, es van desenvolupar coeficients de mitigació els quals són explicats dins de la metodologia. Igualment, es defineixen els passos a seguir per a l'optimització en la implementació d'aquestes mesures. En aquesta investigació, s'il·lustra que les pèrdues potencials econòmiques disminueixen si una mesura estructural és implementada (canalització per Box Culvert de 14 M€), des de 6.6 M€ a 3 M€ (T=500 anys), i si s'implementen mesures no-estructurals en combinació amb la mesura estructural, les pèrdues potencials poden disminuir-se fins a 0.7 M€ per al període de tornada de 500 anys. Sobre les pèrdues potencials de vides humanes, la mitigació obtinguda segueix el mateix comportament que les pèrdues potencials econòmiques, disminuint des d'11 possibles víctimes a 8 amb la mesura estructural i a 2 en combinació amb la mesura no estructural. Pel fenomen de la sequera, es va desenvolupar una metodologia per relacionar la "Sequera Meteorològica" amb les pèrdues potencials econòmiques en cultius de secà. En la mateixa, es proposa un mètode per a la quantificació de la perillositat (mitjançant els índexs de Palmer) i la vulnerabilitat. La susceptibilitat d'un cultiu de secà a un esdeveniment de sequera (vulnerabilitat) es va relacionar fent una classificació d'acord a dos estats fenològics: l'època de sembra i de recol·lecció. El cas d'estudi es va enfocar a la conca del riu Llobregat-Espanya, de la qual es va disposar d'informació hidrometeorològica i de les estadístiques de producció de diferents tipus de cultius de secà. De l'anàlisi realitzada sobre la conca, es va observar que al llarg dels 16 anys d'estadístiques en els cultius, van ocórrer dos períodes importants de sequera (2000/2001 i 2005/2006). Aquests períodes de sequera van deixar respectivament pèrdues potencials econòmiques d'aproximadament 40.13 M€ i 55.84 M€ per a les comarques associades a la conca del riu Llobregat. La metodologia desenvolupada, demostra eficàcia en la detecció d'esdeveniments importants de sequera, així mateix, il·lustra una coherència en la quantificació de les pèrdues individuals en els tipus de cultiu, en les que cultius com l'oliva (classificat com a cultiu llenyós), demostra més resistència a la sequera respecte a altres cultius com l'enciam, tomàquets etc.. Finalment, com a complement a la metodologia desenvolupada, es proposa a les corbes de pèrdua d'eficiència de cultiu, com a indicadors per a la gestió del risc de sequeres en cultius de secà.
Germain, Richard James. "Drought management using a geographical information system". Ohio : Ohio University, 1996. http://www.ohiolink.edu/etd/view.cgi?ohiou1178651687.
Pełny tekst źródłaTeoh, Choo B. "Investigation of drought severity using probabilistic methods". Ohio : Ohio University, 1990. http://www.ohiolink.edu/etd/view.cgi?ohiou1183474312.
Pełny tekst źródłaLloyd-Hughes, Benjamin. "The long range predictability of European drought". Thesis, University College London (University of London), 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.398414.
Pełny tekst źródłaSack, Lawren. "Plant responses to deep shade plus drought". Thesis, University of Cambridge, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.620950.
Pełny tekst źródłaNewell, Trenton D. "Drought tolerant corn response to water availability". Thesis, Kansas State University, 2016. http://hdl.handle.net/2097/32674.
Pełny tekst źródłaDepartment of Agronomy
Kraig L. Roozeboom
Due to decreased availability of irrigation water in central and western Kansas and an increase in water restrictions, producers are looking for more efficient ways to use available irrigation water. Drought-tolerant technologies have become popular in hybrids for stress-prone environments across central and western Kansas and are marketed for their ability to produce greater grain yields with less water. The objective of this research was to understand how DT and non-DT corn hybrids respond in a wide range of environmental conditions in terms of soil water status change, canopy indicators of stress, dry matter partitioning, and grain yield. Soil water status change, yield, and canopy response characteristics of two DT hybrids, and one non-DT hybrid were compared at five locations over two years in rain-fed, semi-irrigated, or fully irrigated regimes making a total of 18 environments. Field experiments were established in 2014 and 2015 near Topeka, Scandia, Hutchinson, Garden City, and Tribune, KS. Two corn hybrids with different approaches drought tolerance (Pioneer 1151 AQUAmax, bred drought tolerance and Croplan 6000 DroughtGard, bred drought tolerance plus transgenic drought tolerance), and one hybrid with no specific drought tolerance characteristics but with proven performance in favorable environments (Croplan 6274) were used in the experiment. Soil moisture content (measured using a neutron moisture meter), canopy temperature, ear leaf temperature, and chlorophyll content were measured at tasseling (VT), milk or dough (R3-R4), and physiological maturity (R6) developmental stages. Grain yield was at all 18 environments, and biomass production was estimated at 14 of the environments. Hybrid plasticity of yield results show the response for Croplan 6000DG and Pioneer 1151AM differed, but Croplan 6274 was the same as both other hybrids at the 0.10 alpha level. Yields of all hybrids remained comparable in most environments, but as environment yields increased beyond 200 bu acˉ¹, Croplan 6000DG lagged behind Pioneer 1151AM. Hybrid harvest index plasticity shoed that all hybrids had the same response to environment in harvest index. Although, not statistically significant, when an environment supported favorable harvest index values greater than 0.40, it’s observed that Croplan 6000DG does have an improvement in harvest index relative to the Pioneer 1151AM and Croplan 6274.