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 20 of 330 for “"Primary Production"”.
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Product stewardship: Linking waste back to primary production
RESEARCH QUESTIONS: In what ways are regulated Product Stewardship schemes likely to contribute to waste reduction in New Zealand? a. How do organisations explain and make sense of Product Stewardship? b. How do people explain and make sense of Product Stewardship? c. What impacts will Product …
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Forest Net Primary Production Resistance Across a Gradient of Moderate Disturbance
… the effect of moderate disturbance on forest production and the mechanisms sustaining or supporting the recovery of the C cycle across a range of moderate disturbance severities. We used a broad plot-scale gradient of upper canopy tree mortality within a large manipulation of forest …
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Future potential net primary production trends of contiguous United States rangelands
… to affect many of the factors that influence the production of rangeland vegetation. Understanding future trends and patterns in net primary production (NPP) requires projected potential NPP to better understand how rangelands will be affected by a changing climate. Here, I used climate data …
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Future potential net primary production trends of contiguous United States rangelands
… to affect many of the factors that influence the production of rangeland vegetation. Understanding future trends and patterns in net primary production (NPP) requires projected potential NPP to better understand how rangelands will be affected by a changing climate. Here, I used climate data …
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Ground vegetation gross primary production dynamics of a drained peatland forest ecosystem
… Thus, to explore ground vegetation gross primary production (GPPGV) dynamics, its affecting factors, and impacts of the partial harvest; forest floor net exchange (NEFF) and respiration (RFF) were measured on an hourly interval with an automated closed flux chamber method were analysed. …
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Remote sensing-based assessment of Gross Primary Production (GPP) in agricultural ecosystems
… of food products, e.g. agricultural yield. Gross primary production (GPP) of agricultural ecosystems is the amount of total carbon assimilated by the planted crops and the driver of useful biomass production. To assess the GPP of croplands, this study combines information from flux determinations …
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Quantifying pelagic primary production and respiration via an automated in-situ incubation system
… (DO) in seawater. The consumption and production via pelagic primary production are of particular importance in surface ocean and in shallow aquatic ecosystems where photosynthetically active radiation (PAR) is abundant. However, the dynamic nature and large degree of heterogeneity in …
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The environmental and photo-physiological control of microphytobenthos primary production on an intertidal mudflat
Microphytobenthos are important primary producers on tidal flats - ecosystems which are characterised by steep physical and chemical gradients. In this study some of the environmental factors that control the distribution and primary production of benthic microalgae were investigated in a series of …
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Primary production of salt-marsh communities on the island of Terschelling in the Netherlands
Contains fulltext : mmubn000001_203113063.pdf (Publisher’s version ) (Open Access)
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Estimation of Primary Production and Carbon Flux in Antarctic Coastal Waters: A Modeling Study
… light field, to simulate phytoplankton primary production, and to estimate the fate of phytoplankton carbon in continental shelf waters of the west Antarctic Peninsula (WAP) and Ross Sea. Simulation of the underwater light field required derivation of new coefficient sets for power …
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Rainbow Trout (Salmo Gairdneri) Cage Culture and Primary Production In Eastern South Dakota Dugout Ponds
… to be the major factor contributing to increased primary production, phytoplankton standing crop, and diel dissolved oxygen levels in comparisons between two unstocked dugout ponds. Suspension of sediments by wind actions may have been greater in the older pond because it was 18% larger in surface …
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Ecosystem Net Primary Production Responses to Changes in Precipitation Using an Annual Integrated MODIS EVI
… this study, the relationship of above-ground net primary productivity (ANPP) with precipitation using the enhanced vegetation index (EVI) from satellite data as surrogate for ANPP was assessed. To use EVI as a proxy for ANPP we extracted the satellite data from areas with uniform vegetation in a …
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Intra-seasonal variability of Southern Ocean primary production: the role of storms and mesoscale turbulence
… of intra-seasonal variability of Southern Ocean primary production. The drivers of this intra-seasonal variability have been explored from two points of view: the local-scale and the remote-scale perspectives, with a suite of physicalbiogeochemical (NEMO-PISCES) numerical models of varying …
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A bio-optical approach to phytoplankton community sturcture, physiology and primary production on the Weddell Gyre
The Southern Ocean is an important “sink” for anthropogenic CO2, but it requires a detailed understanding of the sensitivity of the biological carbon pump to variability in physical forcing mechanisms in order to predict its continuing role. However, due to the remote and tempestuous nature of this …
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Terrestrial-Aquatic Linkages: Watershed (Geologic and Vegetation) Runoff Influences on Primary Production of a Sub Alpine Lake
… and to determine the influence of runoff on primary production. The first chapter provides an introduction to the project. The objectives of the second chapter were to assess macro- and micro-nutrient sources in the terrestrial area of Castle Lake, a small sub-alpine lake basin of the Upper …
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