Team finds weather extremes harmful to grasslands

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Team finds weather extremes harmful to grasslands,
September 28, 2015,
Phys.org,

Arizona State University investigators conducted a six-year experiment on the effects of climatic variability on desert grassland. The study revealed that when unpredictable weather patterns create alternating wet and dry years, ecosystem productivity declines-mostly because grasses diminish, which allows shrubs to flourish.