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 18 of 18 for “"soil water balance"”.
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Development of national extent terrain attributes (TANZ), soil water balance surfaces (SWatBal), and environmental surfaces, and their application for spatial modelling of Pinus radiata productivity across New Zealand
… (one annual and 12 monthly surfaces); and 39 soil water balance model surfaces (one annual and 12 monthly surfaces for fraction of available root zone water storage, available root zone water storage, and drainage). Terrain attributes were developed using a 25-m floating point DEM and are …
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A Comparison of Four Methods to Estimate Groundwater Recharge for Northeastern South Dakota
<p>The rate of groundwater recharge is one of the most important elements in the analysis and management of groundwater resources. In addition, it is also the most difficult quantity to determine. This thesis, which is the result of a study made in northeastern South Dakota, presents an overview of …
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Climate change and plant species composition and community structure in the Central Grassland Region of North America
… combine with temperature to influence soil water balance, which is a primary determinant of terrestrial vegetation. Aspects of soil water balance have been shown to affect many properties of plant communities. The distribution of the earth's major biomes, for example, can be largely …
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Hydrologic Response to Prescribed Burning in the Flint Hills, Kansas
… the VELAS model, which employs a daily soil water balance component, providing a more comprehensive simulation of moisture changes. The analysis of the Flint Hills' daily hydrologic processes without burning parameters revealed the predominant distribution of precipitation, with 80% …
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Model Estimation of Depression-focused Groundwater Recharge and its Variability in the Canadian Prairies
… of the prairie region by storing runoff water and replenishing groundwater through focused infiltration termed as depression-focused groundwater recharge. This study investigated the spatial distribution of depression-focused groundwater recharge in Alberta and Saskatchewan using a …
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VELAS: a fully-distributed daily hydrologic feedback model with emphasis on vegetation, land cover, and soil water dynamics
… model, VELAS (the VEgetation- LAnd cover-Soil water dynamics), to simulate daily responses of hydrologic processes including interception, runoff, evapotranspiration, infiltration, and recharge under various conditions of vegetation, land cover, and soil in a fullydistributed manner. The …
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Determining transpiration efficiency of eight grain sorghum lines [Sorghum bicolor (L.) Moench]
… is defined as total biomass produced per unit of water transpired. Improvement of TE means maximizing crop production per unit of water used. The objectives of the study were to examine, at the leaf level and the whole plant level, the variation in TE for sorghum [Sorghum bicolor (L.) Moench] …
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Development of a land use-based spatial water requirements model for the Berg Water Management Area
… for the spatial modelling of current and future water demand in the Berg River Water Management Area in the Western Cape of South Africa in order to produce a prototype model from which annual water requirements could be computed and spatially visualised. To accomplish this the spatial …
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Caratterizzazione idrogeologica avanzata dell’acquifero alluvionale della piana costiera di Muravera
… economic activities. In such context groundwater abstraction for public water, irrigation and private water supply can lead to over-exploitation and seawater intrusion phenomena. Saltwater intrusion is a critical socio-economic and environmental issue in the coastal plain of Muravera, …
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EnogisAI: An Artificial Intelligence Framework for Predictive Agronomics
… sensing (R2=0.96) and in-field images, (iii) a soil water balance assessment tools for crop stress detection and irrigation planning, and (iv) machine and deep learning models for reconstructing and forecasting pollen concentration time series (R2=0.82 and R2=.72, respectively). Finally, based …
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Valutazione dei meccanismi di degradazione dei nitrati durante il processo di infiltrazione e trasporto nelle acque sotterranee come verifica della efficacia delle misure di mitigazione della contaminazione nelle Zone Vulnerabili da Nitrati
… to the widespread application of fertilizers in soils. This practice has resulted in the release of various chemical pollutants into the soil, which are then transported into the water table through the leaching action of rainwater. Despite the implementation of strict regulations outlined in the …
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Effect of irrigation technology and plant density on cotton growth, yield, yield components, and water use efficiency
Limited water resources and insufficiently developed infrastructure provide challenges to sustainable production of cotton (Gossypium hirsutum L.) in Western Kansas. This study aimed to (i) assess the effect of irrigation technology and plant density on cotton growth, yield, and yield components, …
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Groundwater of the North-Western Kalahari, Namibia
A quantitative model of groundwater flows contributing to the Goblenz state water scheme at the north-western fringe of the Kalahari was developed within this study. The investigated area corresponds to the Upper Omatako basin and encompasses an outer mountainous rim and sediments of the Kalahari …
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Photosynthesis and transpiration in a dry-land Pinus radiata forest
… of photosynthesis, radiation transfer, and soil water balance. Responses of photosynthesis to leaf intercellular CO₂ concentration in two-year old P. radiata seedlings were measured at a range of temperatures and leaf nitrogen concentrations in order to quantify parameters describing …
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Interaktion kommunizierender Grundwasserleiter am Beispiel des numerischen Grundwassermodells 'Aachener Weg - Viersen'
… the interaction of multiple aquifers at a waterworks site of the city of Viersen (waterworks Aachener Weg) in the Niederrheinischen Tiefland. Thus a high resolution hydrogeological model was set up in cooperation with the NiederrheinWasser GmbH. Based on that, a numerical aquifer simulation …
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'Hass' avocado tree water use and the effects of water stress on fruit development
‘Hass’ avocado tree water use and the effects of water deficits on fruit development were assessed in New Zealand from 2017 to 2019. Avocado tree water use was quantified by sap flow measurement and the soil water balance method at three sites in the main avocado growing regions of the Bay of …
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Evaluating the Hydrologic and Thermal Performance of a Green Roof in Syracuse: Measurements and Modeling of a Full-Scale System
… combined sewer overflows as well as other stormwater related problems. Given the high costs of traditional infrastructure rehabilitation, green infrastructure, which mimics natural systems, has become a popular solution. Green roofs are one prominent example of green infrastructure. These are …
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Modelling of water balance and crop growth based on Earth Observation and re-analysis data
L'abstract è presente nell'allegato / the abstract is in the attachment