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 10 of 10 for “"mid-rotation"”.
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Effects of Mid-Rotation Release on Forest Structure, Wildlife Habitat, and Pine Yield
The effects of two forms of mid-rotation release on thinned, fertilized loblolly pine (Pinus taeda L.) plantations in Virginia were examined: aerial imazapyr and basal triclopyr application. Imazapyr measurement plots were installed in nine Piedmont and twelve Coastal Plain plantations …
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Nitrogen release, tree uptake, and ecosystem retention in a mid-rotation loblolly pine plantation following fertilization with 15N-enriched enhanced efficiency fertilizers
Nitrogen is the most frequently limiting nutrient in southern pine plantations. Previous studies found that only 10 to 25% of applied urea fertilizer N is taken up by trees. Enhanced efficiency fertilizers could increase tree uptake efficiency by controlling the release of N and/or stabilize N. …
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MODELING DIAMETER DISTRIBUTION OF LOBLOLLY PINE PLANTATIONS IN RESPONSE TO MID-ROTATION THINNING TREATMENTS AND ASSING THE ECONOMIC RETURNS IN WESTERN GULF COASTAL PLAIN
<p>The influence of thinning regimes incorporating row thinning on diameter distribution and timber product allocation is of considerable importance in the management of loblolly pine (<em>Pinus taeda</em>) plantations within the Western Gulf Coastal Plain. This study utilized data from a thinning …
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Effects of a Control Release Nitrogen Fertilizer and Thinning on the Nitrogen Dynamics of a Mid-Rotation Loblolly Pine Stand in the Piedmont of Virginia
Nitrogen deficiency is characteristic of many mid-rotation loblolly pine (Pinus taeda L.) plantations in the Piedmont region of the southeastern USA. Fertilization with urea is the most common method used to correct this deficiency. Previous studies show that urea fertilization produces a rapid …
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Destination of Isotopic Nitrogen Fertilizer Under Varying Herbicide Regimes in a Mid-Rotation Loblolly Pine (Pinus taeda L.) Plantation in the Piedmont of Virginia, USA
Mid-rotation fertilization and vegetation control are some of the most common silvicultural treatments in loblolly pine (Pinus taeda L.) plantations in the southeastern United States. Competing vegetation is commonly thought to sequester fertilizer nitrogen (N) and reduce the potential growth …
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Dominance/Suppression Competitive Relationships in Loblolly Pine (Pinus taeda L.) Plantations
… extent, site quality. Density reduction through mid-rotation thinning tends to decrease the slope coefficient. The r/size trends are used to develop a disaggregation model to distribute stand-level basal area growth over an initial tree list. This approach compares well with two other …
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Modeling General Response to Silvicultural Treatments in Loblolly Pine Stands
… base-line growth. Separate response functions to mid-rotation thinning and fertilization effects were developed. The thinning response function was based on duration and rate parameters and is sensitive to stand age at the time of thinning, time since thinning, and intensity of thinning. The …
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Decision Support for Operational Plantation Forest Inventories through Auxiliary Information and Simulation
… The incorporation of auxiliary data in mid-rotation stands using SAE techniques improved estimate precision in most cases. Further, guidance on strategies for using this information for predicting future conditions is provided.
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BREEDING SEASON AVIAN COMMUNITY COMPOSITION AND PREY AVAILABILITY IN EUCALYPTUS AND SLASH PINE PLANTATIONS OF SOUTHWESTERN LOUISIANA
… conditions make these species successful short-rotation woody crops (SRWCs). Camden white gum (<em>Eucalyptus benthamii</em>), a more cold tolerant species, has made management of eucalyptus plantations viable in southern portions of the United States such as the Western Gulf Coastal Plain. …
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Exploring the Interaction of Forest Management and Climate in the Community Land Model
… effects on loblolly plantation yields, with mid-rotation stand thinning having an effect under both climate scenarios on par with increases due to the extreme climate change scenario SSP5 RCP8.5. I showed that these changes in wood yields could decrease the forest area in the Southeast …