Tag Archives: Hydrology

CBEMR A Successful Method of
Mangrove Restoration

GNF New Restoration Site at Klong Lu Homestay, Krabi Underway

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On 9 October, 2015 11 persons including 5 International volunteers from Project Abroad-Thailand on improving the hydrology at our new Community Based Ecological Mangrove Restoration(CBEMR) site at Klong Lu area, village no. 3, Klong Prasong District in Krabi province.  The site is actually located on an island, Koh Klang, in the Krabi River Estuary where MAP’s EPIC sites are located.  The work involved digging channels into the high middle area of the pond after a  backhoe had excavated several channels to re-connect the abandon shrimp pond to the natural water canal.

The pond is owned by a family who also running a Klong Lu Homestay in the village.  MAP staff have been staying at the homestay since last year during field work for our EPIC CBEMR sites.  The owner was interested in joining the project on Mangrove Conservation and Restoration so we are grateful to be working with them at this new site.  This restoration site will be also be developed as a mangrove learning center with a short loop mangrove nature trail for the non-formal students and homestay guests who visit Klong Lu.

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By: Mery Christina Nainggolan (Tina), MAP Intern Thailand

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Project Abroad volunteers working on improving hydrology at CBEMR Klong Lu site

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Project Abroad volunteers working on improving hydrology at CBEMR Klong Lu site

 

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Project Abroad volunteer working on improving hydrology at CBEMR Klong Lu site

 

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Project Abroad volunteers, Klong Lu homestay owners and MAP staff are ready for the beach clean up

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Project Abroad volunteers clean up the Klong Lu beach area

 

 

Tha Sa Nook Village GNF Project site Hydrology Improvement

Feature Image Tha Sa Nook

May 19th, 20th and 21st MAP worked with Tha Sa Nook villagers under the Global Nature Fund (GNF) project in Phang Nga Province.

The objectives are to help improve the hydrology of the abandoned shrimp pond using CBEMR methods and techniques by working with the villagers to improve the land conditions for mangrove to regnerate. When the hydrology is improved adequately mangrove volunteers will start to seed and repopulate the pond. By repopulating the abandoned shrimp farm with mangroves we can create more habitat for fish, improving the catch of local village fishermen and rebuild the ecosystem.

MAP staff discussing hydrology strategy with local village workers

MAP staff Khun Chay discussing hydrology strategy with local village workers

MAP Staff member, Ning, educates the villagers who will work on the project about how improving the hydrology of the pond will lead to natural mangrove repopulation.

MAP Staff member, Ning, educates the villagers who will work on the project about how improving the hydrology of the pond will lead to mangrove regeneration.

Villagers and MAP intern work on creating a channel to help the water drain properly from the abandoned shrimp pond.

Villagers and MAP intern work on creating a channel to help the water drain properly from the abandoned shrimp pond.

Key Message: A common problem with restoring many abandoned shrimp ponds is the bottom is often low, so poorly drained, remaining wet too long which is a stress for mangrove seedlings.  Mangroves prefer to be dry (no standing water) for approximately two-thirds of the time which facilitates good oxygen exchange.   The easiest way to partly overcome this problem is to ensure the tidal connection(s) to the pond are wide enough so water can enter and exist at a similar rate to the natural mangrove outside the pond.   Smaller hand dug channels, imitating tidal creeks, can help water drain from the site as the bottoms are flat, while the natural mangrove has rolling elevations to facilitate drainage.

Involving the local community is extremely important in the longevity and sustainability of the project. When the local people have a stake in the quality of the ecosystem they will take personal initiative and responsibility for its conservation and restoration. Through awareness building we can help the local people develop conservation techniques and skills to better help them restore and protect their mangrove.