DELINEATION OF FLUVIAL-AEOLIAN DUNES ALONG THE SMD AND CHILIKA COASTS OF ODISHA, INDIA
| Main Author: | Siba Prasad Mishra. |
|---|---|
| Format: | Article Journal |
| Terbitan: |
, 2018
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/1154652 |
Daftar Isi:
- Coastal sand dunes (CSD’s) offer a valued ecosystem for the shoreline habitats, flora, fauna, avifauna and a natural shield between the waves and wind. CSD’S and its vegetation offer a tool for protecting coast line against Storms, coastal flooding, erosion and the carbon sink for future. Burgeoning population is encroaching and nature is destructing the sand dunes and its vegetation for their settlement, tourism and sand mining. After the great Sumatra tsunami – 2004 it is found that 138.74Km of south Mahanadi deltaic and Chilika coasts has increased its coastal activities like erosion, accretion resulting continuous formation and collapse of sand dunes sporadically. The dune activities along coast of Chilika lagoon are natural and rest up to Konark is the combined effect of environment and anthropogenic activities. The coastal dunes were probably active in the past warm periods of high wind under high deltaic sedimentary budget during post Holocene epoch. The present study is the zonation and delineation of sand dunes along the prograding south Odisha coast. The study area has all the forms of coastal dune structures and are continuously forming along the coastal beach where as the back dunes encroached by the beach stake holders. However in the present warm period of Anthropocene epoch the dune activities should have an increasing trend but there is a constant decrease of sand dune @ 2.24 Km2/year