The impact on habitat˖Reclamation of marine causes the destruction of wetlands and biodiversity
damage of marine, “number of species” is chosen to reflect the effect of habitat function.
x The impact on fishery resources ˖In the coastal areas, fishery is the most important industry.
Reclamation will inevitably have a significant impact on the fishery, so “representative species of fish”
is selected to measure the impact on species, which is also an important character of the production
function.
x The impact on dynamic condition of the water ˖ Hydrodynamics is relatively important to the
environmental quality of coastal water, while the changes of sea hydrodynamic condition are closely
related to coastline shape. The basic indicators include the changes of “water area” in different depths
and “coastline length” of coastline. Reclamation can effect the changes of shape inevitably, resulting to
the hydrodynamic changes in the environment, and so “water area” and “coastline length” are chosen
to characterize this effect, in which the change of inter-tidal area is the most representatively. Just
know a highest and lowest water level within the tidal cycle, the inter-tidal area of the region can be
calculated according to the terrain data [11].
x The impact on marine erosion and deposition conditions˖Reclamation will influence the formation of
marine erosion. “tidal water” and “water exchange capacity” can reflect the influence, and tidal water
in which needs to be calculated. Harbour tide level is an important parameter, which reflects the
exchange of in-water and off-water. The reduction of tidal volume and water exchange capacity will
directly affect sea level, flow rate, the gulf migration and diffusion of pollutants. Tidal volume is
calculated as follows:
The impact on habitat˖Reclamation of marine causes the destruction of wetlands and biodiversitydamage of marine, “number of species” is chosen to reflect the effect of habitat function.x The impact on fishery resources ˖In the coastal areas, fishery is the most important industry.Reclamation will inevitably have a significant impact on the fishery, so “representative species of fish”is selected to measure the impact on species, which is also an important character of the productionfunction.x The impact on dynamic condition of the water ˖ Hydrodynamics is relatively important to theenvironmental quality of coastal water, while the changes of sea hydrodynamic condition are closelyrelated to coastline shape. The basic indicators include the changes of “water area” in different depthsand “coastline length” of coastline. Reclamation can effect the changes of shape inevitably, resulting tothe hydrodynamic changes in the environment, and so “water area” and “coastline length” are chosento characterize this effect, in which the change of inter-tidal area is the most representatively. Justknow a highest and lowest water level within the tidal cycle, the inter-tidal area of the region can becalculated according to the terrain data [11].x The impact on marine erosion and deposition conditions˖Reclamation will influence the formation ofmarine erosion. “tidal water” and “water exchange capacity” can reflect the influence, and tidal waterin which needs to be calculated. Harbour tide level is an important parameter, which reflects theexchange of in-water and off-water. The reduction of tidal volume and water exchange capacity willdirectly affect sea level, flow rate, the gulf migration and diffusion of pollutants. Tidal volume iscalculated as follows:
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