Thesis (Ph. D.)--University of Wisconsin--Madison, 1984. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

M.Sc. (Geography) / Please refer to full text to view abstract

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This research represents the first systematic collection of the woody plants throughout the Cross Timbers. It provides the first keys to these plants in their vegetative condition, plant descriptions, distribution maps, and some quantitative measurements used for descriptive purposes. Descriptions of the woody plants were constructed as an aid in verification after a specimen has been identified by use of the keys. The measurements given pertain only to the woody plants as they occur in the Cross Timbers. Distributional maps are provided for all the taxa considered in this research. With the exception of those species which have the ecological amplitude to grow throughout the Cross Timbers, the distribution of the majority of the remaining species seems to be most strongly influenced by average annual precipitation. In a few instances, conditions associated with latitude appear to govern the distribution of species or varieties within the Cross Timbers. Throughout the Cross Timbers, post oak (Quercus stelta), blackjack oak (Quercus marilandica), and hickory (Caraa texan) dominate the upland forests. The streamside forests are dominated by willow (alix nigra), cottonwood (Populus deltoides), and hackberry (Celtis laevi ata). The variation in the vegetation of the Cross Timbers is not due to any change in dominant species, but rather to the distribution of the associated species which occur in the two prominent community types.

Thesis (M.S.)--West Virginia University, 2002. / Title from document title page. Document formatted into pages; contains xiii, 143 p. : ill. (some col.), maps (some col.). Includes abstract. Includes bibliographical references (p. 113-120).

No description available.

This research determined if woody debris amendments facilitate land reclamation after oil sands mining. Specifically, it assessed if woody debris affects vegetation cover and richness, woody species survival and abundance, soil nutrients, temperature and water, microbial biomass carbon and mycorrhizal biomass. A four year old site and a two year old site were used to compare treatments with and without woody debris. Woody debris did not affect initial vegetation emergence, but increased species richness and decreased introduced species cover. After winter assessments found woody debris cover positively associated with vegetation cover. More saplings planted on woody debris treatments survived and woody debris cover was positively associated with woody plant abundance. Woody debris treatments had lower soil nitrogen and higher phosphorus, suggesting nitrogen immobilization and leachate high in phosphorus. Soil under woody debris had a lower temperature range and higher soil volumetric water content. No differences were found in microbial parameters. / Land Reclamation and Remediation

Thesis (M.S.)--Auburn University, 2007. / Abstract. Vita. Includes bibliographic references.

Thesis (Ph.D.) - Carleton University, 2002. / Includes bibliographical references (p. 115-132). Also available in electronic format on the Internet.