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.
Results
Showing 1 to 20 of 27 for “"moisture deficit"”.
-
A dendrochronological analysis of Western redcedar sensitivity to climatic moisture deficit
… relationship between radial growth and climatic moisture deficit (CMD), and visually assessed for vigor and dieback. Radial growth showed the strongest negative correlation to a CMD spanning current year May through June. Radial growth was negatively correlated with a CMD in October of the year …
-
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.
-
Restoration of Burns Bog : cumulative moisture deficit as an indicator of vegetation recovery and peat growth
… water table residence times and cumulative moisture deficits, to quantify intuitive relationships between moisture stress and ecological zones. Regression analysis of quantitative field observations reveal statistically significant relationships between cumulative moisture deficits and …
-
Victoria’s street trees : planning for climate change through species selection and arboricultural maintenance practices
… trend is likely in large part due to lack of moisture from June to October. Declining health is evident in branch die back and early leaf drop especially on species with a medium to high water requirement. The Prunus genus (cherries and plums) in particular, which comprises 29% of all COV …
-
Aspects of solute movement in the British uplands
… regular, and is a product of rainfall and soil moisture deficit. Colour is strongly associated with discharge, and demonstrates the operation of a catchment flushing mechanism. Runoff is discoloured in a three phase process; colour production, solubilisation and removal. Colour is a product of …
-
Spray stake irrigation of container-grown plants
… to evaluate the effect of pre-irrigation media moisture deficit, irrigation application rate, and intermittent irrigation on irrigation efficiency [(amount applied - amount leached) amount applied' 100] of spray stake-irrigated, container-grown plants. In the first experiment, pine bark-filled …
-
Physiological effects of moisture stress, moisture stress conditioning, and leaf area manipulations on black alder seedlings (Alnus glutinosa (L.) Gaertn.)
… studies, two of which examined the effects of moisture deficits and moisture stress conditioning of black alder seedlings and the third examined the effects of shoot manipulations on the physiology of black alder seedlings and the nitrogenase activity of the seedlings' root nodules. Endophyte …
-
Historical Hydroclimatic Change At Theodore Roosevelt National Park: 1895 - 2011
… annual potential evapotranspiration, and annual moisture deficit, and a statistically significant decrease in annual actual evapotranspiration, annual snow storage and the annual ratio of actual to potential evapotranspiration. The study site's increasing temperature and decreasing precipitation …
-
Investigation of Biotic and Abiotic Factors Affecting Double-Cropped Corn (Zea mays L.) Production in Virginia
… Response variables included yield, moisture at harvest, grain test weight, damage by European corn borer (Ostrinia nubilalis), damage by corn earworm (Heliothis zea), disease progress curves for gray leaf spot Cercospora zeae-maydis), and number of plants exhibiting virus symptoms. …
-
Temporal Variations of delta 2 H, delta 18 O and Deuterium Excess in Atmospheric Moisture and Improvements in the CO 2 -H 2 O Equilibration Technique for 18 O/ 16 O Isotope Ratio Analysis
… are assumed to be controlled primarily by the moisture deficit above the ocean, the major source of atmospheric moisture. In order to understand the seasonal and short-term variations of d(vap), the isotopic evolution of the moisture along 5-day backward trajectories is analysed. Although the …
-
Synoptic-Scale Atmospheric Conditions Associated with Flash Drought Initiation in Puerto Rico and the Caribbean
… 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 …
-
MAPPING THE DISTRIBUTION AND ABUNDANCE OF WESTERN LARCH (LARIX OCCIDENTALIS NUTT.) WITH MULTI-TEMPORAL SATELLITE IMAGERY AND GRADIENT MODELING
… 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 to …
-
MAPPING THE DISTRIBUTION AND ABUNDANCE OF WESTERN LARCH (LARIX OCCIDENTALIS NUTT.) WITH MULTI-TEMPORAL SATELLITE IMAGERY AND GRADIENT MODELING
… 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 to …
-
Landscape-Scale Variability in the Composition, Growth and Pattern of Alpine Treeline Vegetation
… in steep valleys likely caused a spring soil moisture deficit that curbed tree growth over the past several decades, while high exposure to damaging winter winds in shallow valleys resulted in clustered patterns of tree stems. My findings suggest that changes in treeline vegetation over the …
-
The construction, irrigation and fertiliser nutrition of UK golf greens
… green, and artificial wear was applied. Soil moisture deficit predictions by the Meteorological Office conformed with measurements from the soil construction, but the sand-based construction types showed higher deficits. The overall rate of evapotranspiration was around 65 % of predicted …
-
Assessing the impacts of drought on groundwater resources in Scotland using the Eden catchment in northeast Fife as a case study
… 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 because …
-
The etiology of root rot and decline of English boxwood (Buxus sempervirens cv. suffruticosa L.)
… of these three organisms. Results of soil moisture studies were inconclusive as decline occurred in uninoculated checks but disease severity was higher and significantly different as soil moisture decreased. Rainfall data for the period 1960-1970 at Lincoln and Lexington, Virginia, show a …
-
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 …
-
Defining practical limits for centre-pivot length and irrigation management on Lismore soils
… 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 …
-
Seasonal Influences on the Carbon-Water Relations in Ponderosa Pine Forests in the Northern Boundary of the North American Monsoon System
… regard. There is a common understanding that moisture-stress has significant impacts on forested ecosystems and thereby on the global carbon and water cycles. Under persistent moisture deficit, a decline in growth, an increased proportion of wildfires, insect outbreaks, and mass-tree-mortality …
Page 1 of 2