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Interactive effects of nitrogen deposition, tropospheric ozone, elevated CO2 and land use history on the carbon dynamics of northern hardwood forests

机译:氮沉降,对流层臭氧,CO2升高和土地利用历史对北方硬木森林碳动态的交互影响

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摘要

Temperate forests are affected by a wide variety of environmental factors that stem from human industrial and agricultural activities. In the north-eastern US, important change agents include tropospheric ozone, atmospheric nitrogen deposition, elevated CO2 , and historical human land use. Although each of these has received attention for its effects on forest carbon dynamics, integrated analyses that examine their combined effects are rare. To examine the relative importance of all of these factors on current forest growth and carbon balances, we included them individually and in combination in a forest ecosystem model that was applied over the period of 1700-2000 under different scenarios of air pollution and land use history.
机译:温带森林受到人类工农业活动产生的多种环境因素的影响。在美国东北部,重要的变化因素包括对流层臭氧,大气中的氮沉降,CO2升高和人类历史土地使用。尽管它们中的每一个都因其对森林碳动态的影响而受到关注,但很少研究对其综合影响进行综合分析。为了检验所有这些因素对当前森林生长和碳平衡的相对重要性,我们将它们单独或组合地纳入了1700-2000年期间在空气污染和土地使用历史的不同场景下应用的森林生态系统模型中。

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