Geochemical sedimentary evolution during process of mangrove forest formatio, development and degradation in red river mouth (on example of Giao Thuy mangrove forest, Nam Dinh province)
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Abstract
In tropical littorals, thanks to coastal sedimentation, low tidal mudflats tend to be
elevated into high tidal mudflats, which are more favorable for keeping and storing
mangrove seeds (Hoekstra, 2000) [10]. But when the mudflats become higher than the
spring tide level, mangrove forest (MF), which is under dominant influence of fresh
water, begins degrade. In several coastal regions of Vietnam, the degradation of
mangrove forest is also caused or intensified by human making aquacultural ponds.
Environmental variations during the process of formation, development and
degradation of mangrove forests are recorded in the sediment profiles of these regions
in the manner of sedimentary, geochemical and nutritional tendencies. Interpretation of
these geochemical records in coastal sediment will be a contribution to reconstruct the environmental evolution of the process of mangrove forests formation, development and degradation in the Red River mouth,(Giao Thuy mangrove forest), Nam Dinh province (Figure 1).
References
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