They note that logging effects can last for centuries in the forests
Madrid, 13 feb ( EFE).-A team of researchers, with Spanish participation, has concluded that forest ecosystems suffer the consequences of disruption, such as the cutting of trees, for decades, even centuries, and that the current effects of climate change overlapped in the past sequels. These are some of the findings of a study that publishes the magazine “PNAS”, which also confirms the difficulty to discern, in systems that have been subjected to shocks for a long time between the effects of current climate change and those of past human actions. Susana Bernal, one of the authors of this paper, explained to Efe that the interesting thing about the study is that it is an “effect clear” of climate change on forest ecosystems, but “not enough” to explain the changes observed. This is, according to Bernal, because ecosystems have “inertia” and respond slowly to disturbances that have already suffered in the past, and the felling of trees in the early 20th century. To arrive at these conclusions, researchers analyzed data from the past 50 years – climate, atmospheric deposition, and export of nutrients – and forest inventories of Hubbard Brook Experimental basins, in the northeast of the us for two years. One of the analyzed variables was the change in the efficiency of inorganic nitrogen, in particular nitrate retention. According to Bernal, nitrogen is an essential nutrient for all living...
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