Around six per cent of the world's landmass is classified as either permanent or seasonal wetland. Millions of people directly depend on them for food, water, and other purposes.
Researchers estimate that wetlands are worth around USD 70 billion globally each year.
However, these areas also face a number of threats, the most serious of which is agriculture, the 'Wetlands and People' report unveiled today said.
"Wetlands and agriculture can and must coexist," said Matthew McCartney, a hydrologist at the International Water Management Institute (IWMI), a CGIAR centre, and a contributor to the report.
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Noting that outright protection of wetlands is incompatible with farming and undermines livelihoods, McCartney said: "But there are landscape approaches and agricultural practises that can support and sustain healthy wetlands, and vice versa. Working with local communities will help us find the best solutions."
As per the report, India has 26 wetland sites of global importance. These include well-known lakes - Loktak in Manipur, Chilika in Odisha and Wular in Kashmir.
In the report, researchers highlighted a number of examples of the value of wetlands to poor, rural communities in Asia, Africa and Latin America. They also outlined ways to manage them sustainably for current and future generations.
IWMI said the debate around conservation of wetlands has been polarised for years, with agriculture implicated as one of the greatest threats to their survival.
It said now there is a growing consensus that a 'people-centred' approach that seeks to optimise e benefits for small-holder farmers and reduce poverty, while simultaneously protecting ecosystems, represents the most promising future for long-term conservation of wetlands.