Nitrogen deposition impact on terrestrial ecosystems

摘要

Biodiversity loss, as a result of human activities, affects ecosystem productivity and sustainability. Along with climate change and habitat reduction, enhanced nitrogen inputs via atmospheric deposition represent the major drivers of biodiversity reduction. Nitrogen is a limiting factor for ecosystems. Increased bioavailable nitrogen due to increased nitrogen emissions is detrimental for biodiversity compartments. This review summarizes the general soil nitrogen biogeochemical cycle, macro regional nitrogen deposition studies and trends as well as the effects of increased nitrogen deposition, whether site specific or experimental addition. Present review also describes types of impact that elevated nitrogen induce on different ecosystem types and managerial propositions to mitigate the negative impacts of nitrogen depositions.