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 “"Crop Water stress"”.
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Crop-water stress index models for cool season turfgrasses
Crop Water Stress Index (CWSI) technology has shown potential in improving irrigation timing as it determines timing based on the plant's need. Research was conducted to better apply this technology to turf management. The objectives of this study were (i) to determine the complexity of model …
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Crop water stress under climate change uncertainty : global policy and regional risk
Fourty percent of all crops grown in the world today are grown using irrigation, and shifting precipitation patterns due to climate change are viewed as a major threat to food security. This thesis examines, in the framework of the MIT Integrated Global System Model, the potential impacts of …
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Spatial quantification of maize water stress using UAV-acquired data in smallholder farms of Swayimane in KwaZulu-Natal Province
The most important agricultural crop in southern Africa is maize, which grows on variety of environments and serves as an essential food source for the region. Most of the maize is grown in smallholder croplands both for subsistence and commercial purposes. It is one of the two main crops that are …
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Climate change, water stress and agriculture in the Indus Civilisation, 3000-1500 BC
… Summer Monsoon ca 2100 cal BC led to increasing crop water stress, and hence potentially contributed to the Civilisation’s decline by reducing food supply. This hypothesis is frequently invoked in discussions of the Civilisation’s end, yet until now, has not been empirically tested. Using …
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Remote sensing-based assessment of crop yield and water dynamics in the southern Great Plains (USA)
… and understanding yield variability and water management in diverse cropping systems. This is particularly important in water-limited areas, such as the southern Great Plains, where water is the key to sustaining agricultural production. Therefore, the present research integrated remote …
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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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Crop Water Deficits and their Season-ahead Climate Determinants Across the United States
… variability, which reduces reliable access to water needed for the crops. Unreliable access to water and the potential for drought result in major economic losses to the sector as well as potentially significant environmental damage. It is thus necessary to mitigate the effects of drought as …
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Interaction of spatial variability characterized by soil electrical conductivity and plant water status related to generative growth of fruit trees
… Wassernutzungseffizienz (WUEc) und des crop water stress index (CWSI) bezogen auf die Fruchtqualität sowie (iii) eine Möglichkeit zur Einteilung von einzelnen Bäumen hinsichtlich der Bewässerung. Dazu fanden die Hauptuntersuchungen in der Pflaumenanlage statt. Diese Obstanlage befindet …
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Probabilistic Models for Droughts: Applications in Trigger Identification, Predictor Selection and Index Development
… more informed and better decision making by water users and managers. Probabilistic models using hydrologic variables are developed, yielding new insights into drought characterization enabling fundamental applications in droughts.