Water quality in the wetlands has deteriorated, according to a report on Chinese web-portal sina.com, which shows increasingly high levels of nitrogen and phosphorous in lakes and reservoirs.
The mangroves, once planted, will triple the current area covered by mangroves on the island.
Experts say that the principal threat to Hainan’s wetlands come from, among other, the construction of cities, misuse of wetlands, and increases in pollution.
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