How trees manage water in arid environments
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Schematic diagram of instruments on tower. Credit: Constance M. Brown
Water scarcity is slowly becoming a fact of life in increasingly large areas. The summer of 2006 was the second warmest in the continental United States since records began in 1895, according to the National Climatic Data Center. Moderate to extreme drought conditions were evident in about 40 percent of the country.
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