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 “"and soil nutrients"”.
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Impact of lifestock on vegetation and soil nutrients around water points in Highland Savanna rangelands, Namibia
… significant ecological effects in typically arid and semi-arid rangelands where permanent natural surface water is scarce or absent for provision of livestock farming in dry lands Namibia. The impact of livestock grazing on the vegetation and soil status was studied along a grazing gradient from …
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The Lasting Effects of Prescribed Fire and Harvesting on Forest Floor and Soil Nutrients in the Eastern Sierra Nevada Mountains
Silviculture thinning and prescribed fire are common management tools used to eliminate thick fuel loads that could otherwise cause a harmful wildfire. Although these mechanical harvesting techniques are becoming more popular, little is known about their long-term effects on soil fertility, forest …
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Sustainable Agronomic Approaches for Reclaimed Wastewater Utilization: A Focus on Phosphorus Removal, Plant Tissue and Soil Nutrients Retention and Leachate Quality using Biochar and Nitrogen Application Rates under Different Forage Systems
… its ability to reduce greenhouse gas emission and increase carbon sequestration in general. Recent discussions have highlighted the potential benefits of utilizing biochar as a soil amendment to improve soil nutrient dynamics, enhance crop production, and contribute to sustainable agriculture. …
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Approaches For Identifying And Characterizing Microplastics In Biosolids Using Density Separation And µFTIR Spectroscopy
… in agricultural settings to increase field and soil nutrients. At present, the research community is struggling to standardized analytical methods for addressing this emerging environmental concern. This research aims to address this lack of standardization by developing a protocol to …
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Factors affecting plant community composition and dynamics in the Ossipee Pine Barrens, New Hampshire
… sampled in the Ossipee Pine Barrens to identify and describe tree community types and investigate factors controlling forest composition and dynamics. Every site had three site-time assemblages (STA's) representing past, present, and future trees. Past (1952) vegetation was calculated based on …
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Implementation of Sustainable Management Practices at Two California Central Coast Vineyards and Their Effects on Soil Fertility
… at Two California Central Coast Vineyards and Their Effects on Soil Fertility Dawn Michelle Stimson “Sustainable agriculture” has gained increased popularity in recent years. This study was conducted to determine the effects of sustainable management practices on soil fertility at two …
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The impact of nutrient availability, substrate characteristics, and environmental conditions on wood decay and microbial decomposer communities
Wood is an important store of carbon and nutrients globally, and understanding the decay of that wood is critical for estimating rates of global nutrient and carbon cycling. Nutrient availability is important for driving decay rates as decomposers need nutrients to produce wood decay enzymes. My …
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Temporal Nutrient Dynamics in Cool-Season Pasture
Understanding the nutrient dynamics of pastures is essential to their profitable and sustainable management. Tall fescue [Schendonorus phoenix (Scop.) Holub.] is the predominant forage species in Virginia pasturelands. Although tall fescue pasture is common, little research has attempted to …
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MECHANISMS OF SUCCESS: PLANT-HERBIVORE INTERACTIONS AND THE INVASION OF NON-NATIVE LONICERA SPECIES IN NORTH AMERICA
… by non-native species is a complicated process and many hypotheses have been proposed to explain how invasive plant species are often poor competitors in their native range, but dominant in their novel range including the enemy release and novel weapons hypotheses. Additionally, many invasive …
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The contribution of fog to the moisture and nutritional supply of Arthraerua leubnitziae in the central Namib Desert, Namibia
… with particulates that may contain essential nutrients for plants. Furthermore, dry deposition can be an important input of nutrients to many ecosystems, but without water, dust deposited on leaves or on soil is inaccessible for plant uptake. In other studies of coastal ecosystems (e.g. …
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Five-year fertilizer and ground cover effects on surface-mine soils and pine growth
… 80% of mining permits in Virginia listed forestland as the post-mining land use. Adequate stocking and growth of tree stands at time of bond-release eligibility and beyond is an important beginning for returning mined lands to a productive state. In order to ensure reforestation success, …