Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"soil moisture deficit"”.
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Agronomic, Phenological, and Physiological Responses of Old and Modern Soybean Varieties to Soil Moisture Deficit
… ('Williams' and 'Clark 63') to long-term soil moisture deficit.
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Synoptic-Scale Atmospheric Conditions Associated with Flash Drought Initiation in Puerto Rico and the Caribbean
… of flash drought. One definition is based on soil moisture deficit, and the second definition is based on the Evaporative Demand Drought Index (EDDI), an experimental drought monitoring tool. Results suggest that an anomalous convection and positive moisture event followed by negative moisture …
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MAPPING THE DISTRIBUTION AND ABUNDANCE OF WESTERN LARCH (LARIX OCCIDENTALIS NUTT.) WITH MULTI-TEMPORAL SATELLITE IMAGERY AND GRADIENT MODELING
… minimum temperature and water balance variables (soil moisture deficit and actual evapotranspiration). Probability prediction rasters produced with these data also showed a noticeable northern aspect tendency. The accuracy of the remote sensing based models suggest that the method may be applied …
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MAPPING THE DISTRIBUTION AND ABUNDANCE OF WESTERN LARCH (LARIX OCCIDENTALIS NUTT.) WITH MULTI-TEMPORAL SATELLITE IMAGERY AND GRADIENT MODELING
… minimum temperature and water balance variables (soil moisture deficit and actual evapotranspiration). Probability prediction rasters produced with these data also showed a noticeable northern aspect tendency. The accuracy of the remote sensing based models suggest that the method may be applied …
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Landscape-Scale Variability in the Composition, Growth and Pattern of Alpine Treeline Vegetation
… slopes. Shallow active layers and cold soils on north-facing slopes resulted in low shrub cover and slow rates of woody plant growth. The comparatively high cover of tall deciduous shrubs on south-facing slopes, in turn, restricted tree seedling establishment and resulted in relatively …
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Aspects of solute movement in the British uplands
… Coloured runoff is derived from Winter Hill soil, raw acid oligo-fibrous peat, and is most intense from areas with slopes < 5% and high drainage densities. The seasonal pattern of colour is highly regular, and is a product of rainfall and soil moisture deficit. Colour is strongly associated …
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The construction, irrigation and fertiliser nutrition of UK golf greens
… golf green construction. These consisted of a topsoil, a sand, peat and soil mixture, and a pure sand. Experimental treatments applied were three levels of irrigation, five of nitrogen fertiliser and two of phosphate. The trial was maintained as a golf green, and artificial wear was applied. Soil …
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Assessing the impacts of drought on groundwater resources in Scotland using the Eden catchment in northeast Fife as a case study
… carried out with the intension of determining soil moisture deficit and determine the severity of drought in 2022. <br/><br/>Key findings are that groundwater recharge is lowest to the east of the catchment with diffuse pollution from agriculture being more severe to the northwest occurring …
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Bridging the Gap Between Lidar, Thermal, and Multispectral Remote Sensing for Irrigation Scheduling Applications
Irrigation reduces the soil moisture deficit in crop production; however, the Canadian Prairies is a semi-arid landscape with limited water resource availability, requiring careful application of water management practices. This thesis studies methods to reduce irrigation water consumption in …
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Defining practical limits for centre-pivot length and irrigation management on Lismore soils
… and application depth on the dynamics of the soil moisture profile and on the quantity and timing of drainage through the profile, particularly for longer centrepivots, where shorter but more intense applications of water typically occur. The potential for design and management strategies to …
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The response of field bean (Vicia faba L.) to irrigation and sowing date
… and 1982/83 seasons on a Templeton silt-loam soil in Canterbury. During any phase trickle irrigation was applied weekly in amounts equal to the difference between the estimated potential evapotranspiration, adjusted for crop cover and soil evaporation, and the rainfall of the previous week. …
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Dynamics of soybean leaf hydraulic conductance and diurnal soybean transcriptome analysis
… Similarly, Kleaf did not acclimate to a soil moisture deficit, despite declines in both stomatal conductance and leaf water potential. This inability of Kleaf to acclimate to long-term environmental conditions could leave the leaf xylem more vulnerable to cavitation under extreme tensions …
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Identification of strains of Rhizobium leguminosarum
… and enable them to persist better in dry soils. Numerous researchers have investigated the nodulation ability and nitrogen fixation efficacy of R. leguminosarum bv. trifolii when in symbiosis with Trifolium repens (white clover). However, little research has focused on the ability of R. …
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Agronomic potential of Lupinus polyphyllus L. for dryland Merino properties in the Mackenzie Basin : A thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of Philosophy at Lincoln University
… compared with 8122 kg DM/ha for lucerne before a soil moisture deficit started to limit pasture growth in summer 2014/15. To produce this yield, lucerne used 404 mm of water whereas cocksfoot-lupin used 360 mm of water. This equated to a water use efficiency of 20.9 kg DM/ha/mm for lucerne and …