IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Special sessions : Modeling seagrass growth under effects of heavy metals in estuarine wetlands
Modeling seagrass growth under effects of heavy metals in estuarine wetlands
Author : HAIYING LINĄ¤ TAO SUN
ABSTRACT
Seagrass declines have been due to many factors that attribute both natural and anthropic contributions. Of all human
impacts, eutrophication is considered to have the most widespread impact on seagrass, whereas toxic chemicals, such
as heavy metals, herbicides and pesticides, and petrochemicals are also thought to be major factors. Most of the heavy
metals research has focused on the accumulation of metals into seagrass. Scientific knowledge on several issues of
metal affect seagrass growth is limited. And seagrass growth models in prior studies had investigated the single and
coupled relationship between lights change and nutrients in regions which seldom consider influences of pollution factors
such as heavy metals. In this study, we developed a dynamic model for predicting influences of heavy metals in the
growth of seagrass photosynthesis, respiration, and sloughing dynamics as well as by rate at which carbon is
transported between roots to shoot processes. The heavy metal as the variables is introduced into the processes of
photosynthesis.Effect of different concentrations of heavy metals were included in the relationship between the heavy
metals concentrations and seagrass biomass. Overall, the results indicated that the developed model is a viable method
to determine the relationship between seagrass growth and distributions of heavy metals under effects of human
activities in estuarine wetlands.
File Size : 432,293 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Special sessions
Date Published : 28/08/2015
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