低压电流如何帮助珊瑚礁在印尼重生
Beneath the waves of Pemuteran Bay, a quiet revolution is underway. Across the tropics, rising ocean temperatures are triggering mass coral bleaching, turning vibrant reefs into ghostly white graveyards. In this small fishing village on the northwest coast of Bali, however, a patch of seabed that was once a rubble field now teems with life. The secret lies in an unlikely tool: a soft, steady electric current flowing through submerged metal frames.
The technique, known as Biorock, was first developed by an architect and a marine biologist in the 1970s. It works by running a low-voltage current—safe for both humans and marine life—through a steel structure. The electricity triggers a chemical reaction that pulls dissolved calcium and carbonate ions from seawater, causing a thick layer of limestone to crystallize onto the metal. Coral fragments are then transplanted onto the growing mineral platform, where they fuse to the substrate and begin to build a new reef. The process accelerates coral growth rates by two to six times compared to natural conditions.
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