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 10 of 10 for “"soil moisture storage"”.
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Influence of Climate Variability on Terrestrial Hydrology in North America
… range from a month to a season or longer. The soil moisture storage plays a very vital role in delaying the effects of the climate variability on the terrestrial hydrology and in extending the influences of the El Nina and La Nina events. The fluctuation of the soil temperature anomaly is …
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Measurement of Soil and Water-Quality Parameters to Understand Subsurface Transport Processes
… transport dynamics in saturated and unsaturated soils. In the first phase of this study, we have focused on understanding the impacts of climate change driven hydrological processes such as excess rainfall and/or draught cycles on saltwater intrusion processes with a focus on managing freshwater …
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Response of maize to selected productivity traits and biological nitrogen fixation in cowpea-maize combinations under conservation farming system.
… attributed to low and erratic rainfall, low soil fertility, and poor farming practices. This study was conducted to (i) evaluate the grain yield performance of selected drought and Low N tolerant maize varieties under conventional and conservation farming systems. (ii) evaluate the …
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Expansion of bioenergy crops in the midwestern United States: implications for the hydrologic cycle under climate change
… magnitudes. A mechanistic multilayer canopy-root-soil model is applied for capturing the emergent vegetation responses to environmental change. Observed data and Monte Carlo simulations of weather for recent past and future scenarios are used to characterize the variability range of the …
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Understanding the causes of streamflow changes in the Eurasian Arctic
… may imply a release of water from storage via permafrost degradation. For many of the Eurasian rivers, an increase in annual streamflow volume has been accompanied by a shift in seasonality. However, the signature of these changes in forcings and/or internal hydrologic dynamics are …
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Spatial and temporal estimation of pumping and recharge in groundwater system analysis
… a function of the crop type, crop development, soil properties, and rainfall; all of which vary in space and time. A portion of this dissertation work is directed at the development of a GIS-based method for estimating irrigation demand that incorporates these hydrological processes and …
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Observing Drought-Induced Crustal Loading Deformation Around Lake Mead Region via GNSS and InSAR: A Comparison With Elastic Loading Models
… creating a water crisis and negatively affecting soil and groundwater storage across the region. Water deficits have further reduced the mass of water loading on the Earth's crust, causing it to elastically deform. I observe this process from the ground by recording the vertical land motion …
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Hydrologic Response to Conifer Removal from an Encroached Mountain Meadow
… in PVC wells. In order to quantify changes in soil moisture storage, 14 soil moisture probes were installed to a ~1 ft (30 cm) depth. Both sets of instruments were installed using a spatially balanced random sampling approach. Electrical resistivity tomography was conducted on both meadows on …
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Organic manure effects on selected soil properties, water use efficiency and grain yield of sunflower
… However, the effect of organic manure on soil properties and crop yield depends upon its application rate and chemical composition. Climatic seasonal variability within the study area could adversely affect crop production. The amount of rainfall and temperature are among the most …
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Water use of Pinus radiata D. Don on bare ground at the Lincoln agroforestry experiment, Canterbury, New Zealand
… evaluated the rainfall distribution and the soil water storage at different positions of Clone 3 and Seedling trees of Pinus radiata genotypes grown in bare ground during early summer (September 14 to 30 November) 1994. The predawn and mid-day plant water potential of two genotypes was also …