Page 28 - Final Report Improving information and developing a repository of sustainable soil management practices in Asia

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3. Ecological impact

Aspect Impact Before After

1. Water quality Very positive Having problems The problem of waste water
of waste water has been reduced greatly.

2. Salinity level in Very positive Salinity level The salinity level of 28-32
the Soil salinity more than 700 ppt ppt is suitable for sea grape
culture.

3. Variety of Positive None Introducing aquatic animals
animals into the culture, namely
Lutjanus, shrimps and horse
crabs

3.2 Off-site impact from using the technology

Aspect Impact Before After

1.The resilience/ability Positive Due to being the The area of mangrove
of filtration (by soil, area of salt farming, forests has been adjusted
plants, wetlands) the soil is very better. Swamp forests
saline. There are no appear more. A variety
plants growing at all. of plants starts to appear.

2. Pollution occurs at the Positive Waste is released Seaweed culture helps
seaside. from the system. get rid of waste, making
sea water become
cleaner.

4. Acceptance of the technology and application

There is acceptance among farmers. They implement the technology through sea grapes
culture. This is done by circulating water and treating natural water to keep balance of the

ecosystem to be suitable for living of aquatic animals. This condition lasts throughout sea grapes

cultivation without draining the water going through cultivation and organic matters into the
environment or this culture is so-called Zero Waste Farm. Apart from obtaining products which

are sea grapes, by-products resulting from releasing shrimps and horse crabs can be utilized and

increase values.

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