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Near industrial areas, the amount of fixed nitrogen being added to the air and water can cause plants that were previously limited by low nitrogen levels to grow faster and can actually change thr composition of some BIOLOGICAL COMMUNITIES by encouraging plant species that previously did not survive well in the area.工場地帯の近くでは、大気や水に加えられた固定された窒素の量は、かつては窒素不足で成長が制限されていた植物を速く成長させ、その地域に昔はうまく生残できなかった種を勢いづかせて、生物群集の構成を実際に替えてしまうことがある。