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 7 of 7 for “"Plant-Soil Interactions"”.
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Herbivore-plant-soil interactions in the boreal forest : selective winter feeding by spruce grouse
… inputs under feeding trees may locally increase soil nutrient availability and nutrient cycling rates (Chapter 4). The nitrogen content of grouse faeces may account for the relatively high growth rates of feeding trees and may lead to the higher forage quality of feeding trees compared with …
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Plant growth responses to winter climate change: from amongand within-species variation to plant-soil interactions
… change is a complex phenomenon, with snow depth, soil freezing dynamics, and variable air temperature all interacting to bring about differences in among- and within-species growth responses. The objective was to detect growth differences in the responses of species, ecotypes and plant functional …
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Sub-Antarctic plant-soil interactions in a changing world: plant N acquisition and growth under warming on Marion Island
… strong abiotic (e.g., temperature) controls over soil decomposition processes result in N-limited plant productivity and soils replete in organic N (oN, e.g., amino acids) but not inorganic N (iN, i.e., NH4 + and NO3 - ). Recent advances in our understanding of plant N use have shown that cold …
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The effects of scale and context-dependency on the outcome of experiments investigating soil carbon dynamics
Soil carbon dynamics and plant-soil interactions are an integral part of ecosystem function and understanding the effects of perturbations on these processes is vital if we are to predict the future of ecosystems under global environmental change. However, it is often challenging to study complex …
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Integrating the effects of climate change and caribou herbivory on vegetation community structure in low Arctic tundra
… Experimental evidence indicates that tundra plant growth is most strongly limited by soil nutrient availability, which is projected to increase with warming. Therefore research to date into the mechanisms driving tundra 'shrub expansion' has taken a 'bottom-up' perspective, overlooking the …
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The effects of hydrology and vegetation on microbial community structure and soil function in the sediments of freshwater wetlands
In wetland soils, hydrology is considered to be one of the primary factors shaping wetland function and microbial community structure, but plant-soil interactions are also important mechanisms affecting microbial nutrient transformations. The research presented here considered the interactive …
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Unraveling an uncertain future for the Great Basin: how climate, grass invasion, and wildfire interact to drive ecosystem function
… to influence ecosystem function, and how such interactions may change in the future, can provide critical insight for building ecological resilience. This dissertation explores how changing moisture regimes interact with grass invasion and wildfire to modify three key cycles in the Great Basin: …