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Assessment of short term environmental impacts on dredging in a tropical estuary
Balchand, A.N.; Rasheed, K. (2000). Assessment of short term environmental impacts on dredging in a tropical estuary. Terra et Aqua 79: 16-26
In: Terra et Aqua: International Journal on Public Works, Ports and Waterways Developments. International Association of Dredging Companies (IADC): The Hague. ISSN 0376-6411, more
Peer reviewed article  

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  • Balchand, A.N.
  • Rasheed, K.

    Dredging, while earlier an art, is at present a scientific subject that succesfully reflects human skills. This artificial process attempts to win material for beach nourishment, for making roads and railways or for removing settled sediments to facilitate marine transportation. The process, of course, brings about environmental problems in short and long time scales in marine and estuarine environments. This study mainly looks at the short-term impacts of dredging in the estuarine environment of Cochin harbour, India.As expected, the results indicate only transient changes, mainly during the time of dredging. On the other hand, precipitating or long-acting perpetual fluctuations are time bound reversible and are environmentally acceptable. The estuary being variant in hydrographic features, adds significance to this study in regulating the short-term impacts.

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