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...significantly. On average, the stands were expanding at a rate of two extra tons of mass per acre per year, by the end of the study - the equivalent of a single two-foot-diameter tree, if you could grow a tree that big in a year. "We don't know exactly when it started," says co-author Geoffrey Parker, a forest ecologist at the Smithsonian. But the scientists do have an idea of the reason - or rather, three possible reasons, all of which are likely to be interrelated...
Forest biologists already know that, all things being equal, trees grow more rapidly when they're young, then taper off as they mature, and that you can chart the standard curve of growth for a given forest type by looking at the kind of snapshots Parker and his colleagues used. It takes only a couple of years of measurements to figure out the overall growth curve. This study has been going on for 22 years, conducted largely by technicians and volunteers trained by the Smithsonian scientists. "We have a huge corps of volunteers," says Parker. "It's not rocket science...
Justin R. Timberlake knew he would be receiving the Pudding Pot, but he didn’t know that Lady Gaga, Britney Spears, and Lance Bass would be helping him on a mission—to bring his sexy back...
...separate for one week, so it would be "legally permissible" for him to visit his lover. And when he was caught by the media returning from Argentina after visiting this other babe, he turned to Jenny for political advice. "Do not talk about your heart," she said. We all know how that now legendary press conference went...
...relationship between body and mind is no secret; a healthy body produces a healthy mind. Therefore, during periods of high stress, such as midterm seasons and reading week, Harvard students need to spend more time doing physical activity. While the physical benefits of exercise are more or less widely know, it is easy to overlook the mental benefits...