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 13 of 13 for “"growing season length"”.
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Vegetation growing season length along the urban-rural gradients across European capital cities
Ilmastonmuutoksen ja kaupungistumisen myötä urbaanin kasvillisuuden merkitys ilmaston, ekologian ja ihmisen hyvinvoinnin näkökulmasta on korostunut. Kasvillisuuden fenologia säätelee merkittävästi ekosysteemipalveluiden toimintaa, ja kaupunkikasvillisuuden fenologiaan vaikuttavat esimerkiksi …
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Investigation of Biotic and Abiotic Factors Affecting Double-Cropped Corn (Zea mays L.) Production in Virginia
… site suitability analysis was performed for full season and double-cropped corn in Virginia using weighted abiotic factors and constraints. Thornthwaite potential evapotranspiration (PET) and PET minus precipitation were used to identify areas of the state having a lower average moisture deficit …
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Relationships between tree rings and Landsat EVI in the Northeast United States
… correlated with mean monthly EVI during the growing season, EVI integrated over the growing season, and growing season length. Results indicate that correlations between TRW and EVI are largely not significant in this region. The complex response of tree growth to a variety of limiting …
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Maximizing yield of high quality cottonseed through nutrient management strategies
… planted are produced on the Plains. The short growing season of the High Plains causes the seed from the upper canopy bolls to suffer from increased competition from other developing bolls, an aging canopy, and cooler temperatures during development. Following the availability of an adequate …
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From land to water: the impacts of forest disturbances on carbon cycling in northern catchments
… how single disturbance events change growing season length and radiative forcing of forests can help predict potential feedbacks of forest health on climate warming. Chapter 4 tests how outbreaks of defoliating insects alter biogeochemical cycling from land to receiving waters through …
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Remote Sensing of Vegetation Change Across a Latitudinal Gradient in the Canadian Arctic
… variables (i.e., temperature, precipitation and growing season length (GSL) were examined to explore the potential relationships of NDVI to climate warming. PVC was successfully modeled using high resolution data in the ARW. PVC and plant communities appear to reside along a moisture and …
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ASSESSING FOREST RESPONSES TO CLIMATE CHANGE AND RESOLVING PRODUCTIVITY MEASUREMENTS ACROSS SPATIAL SCALES
… US Northern Rockies. Results show an increase in growing season length and in water stress, and a decrease in snow quantities and in number of days with ground snow for all forests by 2089. Under the driest and warmest scenario, the majority of the sites became carbon sources, and I identify a …
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ASSESSING FOREST RESPONSES TO CLIMATE CHANGE AND RESOLVING PRODUCTIVITY MEASUREMENTS ACROSS SPATIAL SCALES
… US Northern Rockies. Results show an increase in growing season length and in water stress, and a decrease in snow quantities and in number of days with ground snow for all forests by 2089. Under the driest and warmest scenario, the majority of the sites became carbon sources, and I identify a …
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Long-term analysis and appropriate metrics of climate change in Mongolia
… 2 evaluates the long-term (1961-2005) trends in seasonal and annual surface mean, maximum, minimum temperatures and precipitation. Furthermore, this study compares the long-term mean temperature trends with decadal (1998-2007) trends. This chapter also discusses the extreme climate indices on …
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The Role of Climate Variability in Duck Population Ecology
… I examined annual variation in the timing, length, and productivity of growing seasons on duck population growth rates in North American boreal forest, 1982-2013. I found limited evidence that spring phenology, growing season length or productivity influenced annual population growth rates, …
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Nitrogen uptake patterns by snow addition in a sub-Arctic dry heath tundra ecosystem
… particularly affectssnow accumulation and the length of the growing season. In this study, I examined the influence of snow depth on parameters such as water content, soil temperature, microbial activity, and nutrient availability and investigated their implications for plant water availability …
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Upper Missouri River Basin Aquatic GAP Fish Distribution Model Accuracy Assessment and White Sucker, Catostomus commersonii, Population Characteristics in the Upper Missouri River Basin
… precision of aging structures; age structure; length frequencies; growth; and condition. White suckers were collected in each of the six drainages during fish surveys (N = 1,107) and a subsample of fish was retained for age, growth, condition, and other population analyses. Otoliths were …
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A tripartite study on Bayesian estimation of photosynthetically active radiation, impacts of future climate, and adaptation strategies on crop production: a spatial model framework for the Eastern Kansas River Basin
… yield decline may have occurred due to shortened growing season length, with values ranging from 21% to 38% (early and late century, respectively) under RCP 4.5, and from 22% to 70% (early and late century, respectively) under RCP 8.5. Despite the yield declines, irrigation water use under full …