• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 25
  • 12
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 1
  • 1
  • Tagged with
  • 46
  • 46
  • 14
  • 10
  • 10
  • 10
  • 10
  • 10
  • 10
  • 10
  • 10
  • 10
  • 10
  • 10
  • 10
  • 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.
21

Biomass and distribution of submerged macrophytes in lakes

Duarte, Carlos M. January 1987 (has links)
Note:
22

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
23

Non-indigenous freshwater plants : patterns, processes, and risk evaluation /

Larson, Daniel. January 2007 (has links)
Thesis (doctoral)--Swedish University of Agricultural Sciences, 2007. / Thesis documentation sheet inserted. Appendix reproduces five papers and manuscripts, two co-authored with others. Includes bibliographical references. Also issued electronically via World Wide Web in PDF format; online version lacks appendix.
24

Synthesis of small molecules with specific function : I. Peptidocalix[4]arenes as molecular receptors ; II. Towards the total synthesis of (-)-Dihydroguaiaretic acid

Brewster, Rachel Elizabeth 07 June 2004 (has links)
No description available.
25

Synthesis of small molecules with specific function I. Peptidocalix[4]arenes as molecular receptors ; II. Towards the total synthesis of ( - )-Dihydroguaiaretic acid /

Brewster, Rachel Elizabeth, January 2004 (has links) (PDF)
Thesis (Ph. D.)--School of Chemistry and Biochemistry, Georgia Institute of Technology, 2004. Directed by Suzanne B. Shuker. / Includes bibliographical references.
26

Activated and constitutive chemical defenses in freshwater plants

Prusak, Anne C., January 2004 (has links) (PDF)
Thesis (M.S. in Bio.)--School of Biology, Georgia Institute of Technology, 2004. Directed by Julia Kubanek. / Includes bibliographical references (leaves 42-48).
27

Impacts of Pomacea canaliculata on freshwater macrophytes and water quality, as well as its control with fish

Wong, Pak Ki 01 January 2010 (has links)
No description available.
28

The aquatic plants of central Utah and their distribution

Bessey, Gerald E. 01 May 1960 (has links)
It was the purpose of this study to determine what aquatic plants were common to central Utah and to outline the ecological factors that control their distribution. The main emphasis throughout has been upon the more macroscopic aquatic plants. Such algae were included as was warranted by their size,, abundance and importance in the various habitats in which they grew. As this study progressed it became evident that there was a need for a broad survey-type study of the aquatic plants that would include essentially all of the wet lands of the central Utah region. The area of study closely corresponds to the boundaries of Utah County, although some collections were made outside the county, particularly to the east, in Wasatch County. The study was initiated in the spring of 1955 and field work was done during the summers of 1956, 1957, and 1959.
29

Activated and constitutive chemical defenses in freshwater plants

Prusak, Anne C. 03 1900 (has links)
No description available.
30

An invasive macrophyte creates cascading ecosystem effects through suppression of a native isoetid

Urban, Rebecca Anne. January 2008 (has links)
Thesis (Ph. D.)--State University of New York at Binghamton, Department of Biological Sciences, 2008. / Includes bibliographical references.

Page generated in 0.0856 seconds