China’s efforts to slow land degradation and climate change by planting trees and restoring grasslands have shifted water around the country in huge, unforeseen ways, new research shows.
Between 2001 and 2020, changes in vegetation cover reduced the amount of fresh water available for humans and ecosystems in the eastern monsoon region and northwestern arid region, which together make up 74% of China’s land area, according to a study published Oct. 4 in the journal Earth’s Future. Over the same period, water availability increased in China’s Tibetan Plateau region, which makes up the remaining land area, scientists found.
“We find that land cover changes redistribute water,” study co-author Arie Staal, an assistant professor of ecosystem resilience at Utrecht University in the Netherlands, told Live Science in an email. “China has done massive-scale regreening over the past decades. They have actively restored thriving ecosystems, specifically in the Loess Plateau. This has also reactivated the water cycle.”
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