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 12 of 12 for “"Moisture Index"”.
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Spatial Distribution of Four Exotic Plants in Relation to Physical Environmental Factors with Analysis using GIS
… Roads, Trails, Streams, & Normalized Difference Moisture Index) to produce logistic regression models. After field- validating the models, the models were ranked according to usefulness, with the E. umbellate model proving most accurate. It is hoped that such GIS models will allow forest managers …
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Stable light isotopes in fauna as environmental proxies in the Southern African winter and year-round rainfall zones
… mean annual temperature (MAT), mean annual soil moisture stress (MASMS), mean annual potential evapotranspiration (MAPE), relative humidity (RH), summer aridity index (SAI), winter concentration of rainfall (WCR), moisture index (MI) and water deficit (WD).
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Irrigator Responses to Changes in Water Availability in Idaho's Snake River Plain
… seasonal maximum of the Normalized Difference Moisture Index (NDMI), to identify irrigated and non-irrigated lands in Idaho's Snake River Basin for 1984-2016 using Landsat 5-8 data. NDMI of irrigated lands was found to generally increase over time, likely as a result of changes in agricultural …
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Insolation, Precipitation, and Moisture Maps for a Virginia Geographic Information System
… combined temperature and precipitation, and a moisture index were also created. Accuracy of the estimates for temperature and precipitation for each 300 m x 300 m pixel were quantitatively assessed. The methods used estimated mean monthly temperature within 1 degree C. Precipitation estimates …
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Bryophyte Community Response to Prescribed Fire and Thinning in Mixed-Oak Forests of the Unglaciated Allegheny Plateau
… linear transects stratified by an integrated moisture index (IMI) in each treatment. I found a total of 116 bryophyte taxa (97 mosses, 19 liverworts). Of these, only 65 were found in more than 5% of the transects. Burning in xeric sites clearly altered bryophyte community richness and …
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Radial growth patterns of jack pine in relation to climate, moisture availability, and dwarf mistletoe infection in the Boreal Plains Ecozone of Saskatchewan, Canada
… and uninfected stands, across the regional moisture gradient associated with the boundary of the boreal forest in southern Saskatchewan. I sampled across three study regions extending from remnant island forests in the drier Aspen Parkland Ecoregion, to the wetter interior of the mid-boreal …
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RECONSTRUCTING CLIMATE ON THE GREAT PLAINS FROM BURIED SOILS: A QUANTITATIVE APPROACH
… reconstructs mean annual precipitation (MAP), moisture index (Im), and mean annual temperature (MAT) with statistically significant results (r2 = 0.4, p < .0001) and low mean average errors. While error increases on the edges of the Great Plains climate envelope, application of BuSCR to a …
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Modeling Habitat and Environmental Factors Affecting Mosquito Abundance in Chesapeake, Virginia
… mosquito abundance based on a topographic soil moisture index and recent weather patterns, and (IV) a set of protocols laid out to aid mosquito control agencies for the use of these models.</p> <p>The HSIs (Chapter II) were based on relationships of mosquitoes to digital surrogates of soil …
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Quantifying Trends In our National Parks: A Landscape Level Analysis of Climate Change and Ecosystem Productivity
<p>The U.S. National Parks are an integral part of our National Heritage. They are now, more than ever, experiencing threats from outside forces that are difficult to evaluate, such as climate change. The magnitude and direction of change will vary spatially across the landscape, making it …
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Quantifying Trends In our National Parks: A Landscape Level Analysis of Climate Change and Ecosystem Productivity
<p>The U.S. National Parks are an integral part of our National Heritage. They are now, more than ever, experiencing threats from outside forces that are difficult to evaluate, such as climate change. The magnitude and direction of change will vary spatially across the landscape, making it …
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Life history traits of South African Encephalartos spp. (Zamiaceae) and their implications for understanding population structure, responses to threats and effective conservation action
… minimum temperatures, mean annual precipitation, moisture index, rainfall co-efficient of variation and fire return frequency, showed that the means per group were not significantly different from each other for most of the variables. However, it was evident that the variable ranges showed clear …
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Reconstructing climate variability on the Tibetan Plateau : comparing aquatic and terrestrial signals
Spatial and temporal temperature and moisture patterns across the Tibetan Plateau are very complex. The onset and magnitude of the Holocene climate optimum in the Asian monsoon realm, in particular, is a subject of considerable debate as this time period is often used as an analogue for recent …