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A STUDY ON THE ROLE OF HABITATS OF A TIDAL LAND RECLAMATION AREA FOR WINTER MIGRANTS IN KOREA

ABSTRACT This study has been carried out to evaluate the habitat role for migratory birds in a tidal reclamation area in comparison with a river estuary in Korea. It also includes the contribution effect of the contract on the optional Choice of Paddy Field Management (CPFM) program to sustain biodi...

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Bibliographic Details
Published in:Irrigation and drainage 2013-10, Vol.62 (S1), p.44-51
Main Authors: Hyun, Park Sang, Ok, Kim Jae, Jae, Ji Kwang, Bae, Lee Deog
Format: Article
Language:English
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Summary:ABSTRACT This study has been carried out to evaluate the habitat role for migratory birds in a tidal reclamation area in comparison with a river estuary in Korea. It also includes the contribution effect of the contract on the optional Choice of Paddy Field Management (CPFM) program to sustain biodiversity of winter migrants in Korea. The CPFM program has been practiced to attract winter migratory birds in cooperation with the farmers who spread rice straw, cultivate barley and provide shallow flooding paddy during the winter season in various reclaimed areas. The study result shows that a large number of winter migratory birds visited the tidal reclamation areas and the reason given is that wave intrusion was prevented by the sea dike and water level changes in the lake are less than tidal level changes in the estuary, as well as the irrigated paddy field supply of food and shelter for the birds in the reclaimed area. In the tidal reclamation area, the dominant species are waterfowl such as geese and ducks, while waders, shore birds and other small birds have declined after reclamation in the area, as the freshwater lakes are rather deeper than coastal shorelines to attract them. In conclusion, tidal areas with large paddy fields and freshwater lakes have allowed not only an increase in food production but also have attracted winter migrants supported by farmers and government; however, more effort will be needed to provide habitats for rare and distinctive birds in the reclamation area. Copyright © 2013 John Wiley & Sons, Ltd. RÉSUMÉ Cette étude a été menée pour évaluer le rôle de l'habitat des oiseaux migrateurs dans les zones d'estran aménagées, en comparaison avec les zones d'estuaire, en Corée. Elle comprend également l'effet de la contribution d'un contrat du programme de gestion des rizières (CPFM) sur le choix optionnel de préserver la biodiversité des migrants d'hiver en Corée. Le programme CPFM a été pratiqué pour attirer les oiseaux migrateurs en hiver, en collaboration avec les agriculteurs des domaines aménagés qui répandent la paille de riz, cultivent de l'orge et pratiquent une submersion peu profonde pour l'irrigation de la saison d'hiver. Le résultat de l'étude montre que grand nombre d'oiseaux migrateurs d'hiver visitent les zones d'estran aménagées, et les raisons invoquées sont que la digue empêche l'intrusion de vagues, que le marnage est moindre dans le lac d'estran que dans l'estuaire, et que la rizière irriguée fournit nourriture e
ISSN:1531-0353
1531-0361
DOI:10.1002/ird.1796