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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

Anisotropic properties of compacted silty clay

Kim, Huntae. January 1996 (has links)
Thesis (M.S.)--Ohio University, August, 1996. / Title from PDF t.p.
32

Fingerponds managing nutrients and primary productivity for enhanced fish production in Lake Victoria's wetlands, Uganda /

Kaggwa, Rose Christine. January 1900 (has links)
Thesis (doctoral)--Wageningen University, 2006. / "Propositions" ([1] leaf) inserted. Vita. Includes bibliographical references.
33

Fingerponds managing nutrients and primary productivity for enhanced fish production in Lake Victoria's wetlands, Uganda /

Kaggwa, Rose Christine. January 1900 (has links)
Thesis (doctoral)--Wageningen University, 2006. / "Propositions" ([1] leaf) inserted. Vita. Includes bibliographical references.
34

Targeting conservation activities : cost-effective wetlands restoration in the Central Valley of California /

Newbold, Stephen Carlisle. January 2002 (has links)
Thesis (Ph. D.)--University of California, Davis, 2002. / Degree granted in Ecology. Includes bibliographical references (leaves189-199). Also available via the World Wide Web. (Restricted to UC campuses)
35

Estimating willingness to pay for the preservation of the Alfred bog wetland in Ontario : a multiple bounded discrete choice approach

Tkac, Jennifer May January 2002 (has links)
No description available.
36

An investigation of the role of Mai Po Nature Reserve from a conservation and education perspective

Chung, Hung-fat., 鍾洪發. January 2000 (has links)
published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management
37

Growth of freshwater emergents under different submergence levels.

January 2007 (has links)
Wong, Man Shan Michelle. / Thesis submitted in: November 2006. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2007. / Includes bibliographical references (leaves 148-167). / Abstracts in English and Chinese. / Acknowledgements --- p.I / Abstract --- p.III / Table of contents --- p.VI / List of Tables --- p.X / List of Figures --- p.XI / List of Plates --- p.XIV / Chapter Chapter 1 --- Introduction / Chapter 1.1 --- Wetlands --- p.1 / Chapter 1.2 --- Importance of wetlands --- p.3 / Chapter 1.3 --- Wetland plants --- p.7 / Chapter 1.4 --- Adaptations of wetland plants to flooding --- p.7 / Chapter 1.5 --- Effects of hydrology on wetland plants --- p.13 / Chapter 1.6 --- Other factors affecting plant growth in wetlands --- p.16 / Chapter 1.7 --- Wetlands in the world --- p.19 / Chapter 1.8 --- Wetlands in Hong Kong --- p.19 / Chapter 1.8.1 --- Mai Po Inner Deep Bay Ramsar Site --- p.19 / Chapter 1.8.2 --- Wetland conservation in Hong Kong --- p.21 / Chapter 1.9 --- "Successful cases and constraints on wetland restoration, creation and conservation" --- p.22 / Chapter 1.9.1 --- The Ramsar Convention and wetland conservation --- p.22 / Chapter 1.9.2 --- Constraints in wetland restoration and creation --- p.32 / Chapter 1.9.3 --- Cases of wetland restoration and creation --- p.32 / Chapter 1.9.3.1 --- Restoring the habitat of endangered bird in southern California --- p.33 / Chapter 1.9.3.2 --- Creating tidal wetlands in San Diego Bay --- p.33 / Chapter 1.9.4 --- Constraints on wetland restoration and creation in Hong Kong --- p.33 / Chapter 1.9.4.1 --- Small scaled projects --- p.33 / Chapter 1.9.4.2 --- Lack of long-term management --- p.34 / Chapter 1.9.4.3 --- Lack of clear goals and objectives --- p.34 / Chapter 1.10 --- "Objectives, significance and outline of the present study" --- p.35 / Chapter 1.10.1 --- Research objectives --- p.35 / Chapter 1.10.2 --- Significance of the research --- p.35 / Chapter 1.10.3 --- Outlines of the thesis --- p.37 / Chapter Chapter 2 --- Growth performance of selected species of freshwater emergents under different levels of submergence in a natural wetland / Chapter 2.1 --- Introduction --- p.38 / Chapter 2.2 --- Materials and Methods --- p.41 / Chapter 2.2.1 --- Site description --- p.41 / Chapter 2.2.2 --- Planting --- p.42 / Chapter 2.2.3 --- Sampling --- p.42 / Chapter 2.2.3.1 --- Water --- p.43 / Chapter 2.2.3.2 --- Soil --- p.43 / Chapter 2.2.3.3 --- Plants --- p.43 / Chapter 2.2.4 --- Analysis --- p.43 / Chapter 2.2.4.1 --- Water --- p.43 / Chapter 2.2.4.2 --- Soil --- p.47 / Chapter 2.2.4.3 --- Plants --- p.47 / Chapter 2.2.5 --- Statistical analysis --- p.48 / Chapter 2.3 --- Results and Discussion --- p.48 / Chapter 2.3.1 --- Water quality in the trial plots at the Mai Po Marshes Nature Reserve --- p.48 / Chapter 2.3.2 --- Soil properties in plots under different levels of submergence at the Mai Po Marshes Nature Reserve --- p.53 / Chapter 2.3.3 --- Growth of freshwater emergents under different submergence levels --- p.59 / Chapter 2.3.3.1 --- Aboveground biomass --- p.59 / Chapter 2.3.3.2 --- Plant nutrient concentrations --- p.66 / Chapter 2.3.3.3 --- Plant nutrient yields --- p.67 / Chapter 2.4 --- Conclusions --- p.76 / Chapter Chapter 3 --- Growth performance of selected species of freshwater emergents under different levels of submergence in a created wetland / Chapter 3.1 --- Introduction --- p.78 / Chapter 3.2 --- Materials and Methods --- p.80 / Chapter 3.2.1 --- Site description --- p.80 / Chapter 3.2.2 --- Planting --- p.80 / Chapter 3.2.3 --- Sampling --- p.80 / Chapter 3.2.3.1 --- Water --- p.80 / Chapter 3.2.3.2 --- Soil --- p.84 / Chapter 3.2.3.3 --- Plants --- p.84 / Chapter 3.2.4 --- Analysis --- p.85 / Chapter 3.2.4.1 --- Water --- p.85 / Chapter 3.2.4.2 --- Soil --- p.86 / Chapter 3.2.4.3 --- Plants --- p.86 / Chapter 3.2.5 --- Statistical analysis --- p.87 / Chapter 3.3 --- Results and Discussion --- p.87 / Chapter 3.3.1 --- Water quality in the freshwater marshes at the Hong Kong Wetland Park --- p.87 / Chapter 3.3.2 --- Soil properties in the freshwater marshes under different levels of submergence at the Hong Kong Wetland Park --- p.92 / Chapter 3.3.3 --- Growth of freshwater emergents under different submergence levels --- p.100 / Chapter 3.3.3.1 --- Aboveground biomass --- p.100 / Chapter 3.3.3.2 --- Plant nutrient concentrations --- p.105 / Chapter 3.3.3.3 --- Plant nutrient yields --- p.109 / Chapter 3.4 --- Conclusions --- p.112 / Chapter Chapter 4 --- Growth performance of selected species of freshwater emergents under different levels of submergence and soil types in a greenhouse pot experiment / Chapter 4.1 --- Introduction --- p.114 / Chapter 4.2 --- Materials and Methods --- p.115 / Chapter 4.2.1 --- Experimental setup --- p.115 / Chapter 4.2.2 --- Harvesting --- p.117 / Chapter 4.2.3 --- Tissue analysis --- p.117 / Chapter 4.2.4 --- Statistical analysis --- p.117 / Chapter 4.3 --- Results and Discussion --- p.118 / Chapter 4.3.1 --- Aboveground biomass --- p.118 / Chapter 4.3.2 --- Plant nutrient concentrations --- p.128 / Chapter 4.3.3 --- Plant nutrient yields --- p.134 / Chapter 4.4 --- Conclusions --- p.140 / Chapter Chapter 5 --- General Conclusions / Chapter 5.1 --- Summary and implications of major findings --- p.142 / Chapter 5.2 --- Limitations of the study --- p.144 / Chapter 5.3 --- Further investigations --- p.145 / References --- p.148
38

Environmental impacts of the construction phase of an intensive development project on a coastal forest wetland : case study : Seaward Estates, Ballito.

14 January 2011 (has links)
Storm water runoff is a leading cause of degradation in the water quality of receiving water bodies. Although legislation requires that Environmental Impact Assessments (EIA) are performed and Environmental Management Plans (EMP) put in place for the construction of high density housing developments, there is generally very little evidence that real measures are developed to monitor and actually assess the extent of the impact that construction activities have on the environment during the physical construction stage. The water quality of stormwater runoff from a mixed use catchment including construction sites in Seaward Estates, Ballito, KwaZulu-Natal that enters a coastal forest wetland system was characterised by monitoring programmes established at three study areas. The effect thereof on the quality of the wetland water and sediments was further monitored at five points along the drainage line of the system. The investigation focussed on obtaining representative stormwater samples in order to quantitatively identify pollutant constituents transported within stormwater runoff from construction sites during rainfall events. Storm water runoff event mean concentration (EMC), atmospheric deposition and wetland water and sediment samples were collected over an eight month period. The characterisation of stormwater runoff for this investigation included heavy metals, oxygen demanding substances, sediments and physico-chemical analysis for pH, conductivity and ammonia and nitrates. The majority of contaminant EMC exceeded the South African wastewater discharge general and special limits. The findings from this investigation will provide planners and decision-makers with a greater understanding of the pollution dynamics of construction sites aiding in improved best management practice decisions with regard to minimizing impacts on coastal forest wetlands and water resources. This will lead to improved EMP and stormwater management plans (SWMP) incorporating stormwater pollution prevention plans (SWPPP) for construction sites. / Thesis (M.Sc.Eng.)-University of KwaZulu-Natal, Durban, 2007.
39

The status of freshwater compensatory wetland migration in Washington State

Johnson, Patricia Ann. January 2004 (has links) (PDF)
Thesis (M.E.S.)--The Evergreen State College, 2004. / Title from title screen (viewed 3/11/2010). Includes bibliographical references (p. 139-150).
40

Wetland regulation and mitigation a case study from Twinsburg, Ohio /

Clarke Thrush, Eliza C. January 2009 (has links)
Thesis (M.A.)--Ohio University, November, 2009. / Release of full electronic text on OhioLINK has been delayed until September 1, 2014. Title from PDF t.p. Includes bibliographical references.

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