Science needs for continued development of total nitrogen deposition budgets in the United States

摘要: The objectives of this white paper are to describe the state science with respect total Nr deposition budgets in United States and research needed improve these from both measurement modeling perspectives. document is intended serve as a plan for TDep activities but also, more broadly, provide program managers, natural resource policy makers scientists an understanding (1) need complete accurate protect ecosystem health human welfare, (2) linkages between underlying policy-relevant questions specific knowledge data gaps budgets.