干旱区生态环境知识资源中心(Arid): Evaluation of the Sensitivity of Inventory and Monitoring National Parks to Acidification Effects from Atmospheric Sulfur and Nitrogen Deposition. Sonoran Desert Network (SODN).

Arid

报告编号	PB2011114474
	Evaluation of the Sensitivity of Inventory and Monitoring National Parks to Acidification Effects from Atmospheric Sulfur and Nitrogen Deposition. Sonoran Desert Network (SODN).
	Sullivan, T. J; McPherson, G. T; McDonnell, T. C; Mackey, S. D; Moore, D.
英文摘要	One of the principal threats to natural resources on public lands managed by the National Park Service (NPS) is air pollution. Many air pollutants are emitted into the atmosphere outside park boundaries and are transported to the parks with the prevailing winds. Two of the most important are sulfur (S) and nitrogen (N), both of which can contribute to acidification of sensitive soil and surface water resources. Knowledge of the extent of resource sensitivity to acidic deposition is incomplete. The purpose of this assessment is to compile available information at the national scale to identify park resources that are known or thought to be sensitive to acidification from atmospheric deposition of acidifying S and N compounds. This assessment provides a first step in that process. This information will help federal land managers to assess current conditions, design monitoring programs to document and quantify changes over time, and better protect park resources. This project evaluates the sensitivity of all Inventory and Monitoring (I&M) national parks in the United States to potential acidification effects caused by acidifying atmospheric deposition. Such effects can be caused by the addition of S, oxidized N (NOx) and/or reduced N (NHx) to natural ecosystems. Acidification can occur in both terrestrial (soil and soil water) and aquatic (fresh surface water) ecosystems. The addition of S and N from air pollution sources to national park ecosystems can alter plant, animal, and algal communities at all trophic levels and influence the mix of species that thrive in those ecosystems. The response is driven by both the amount of air pollutants deposited and the sensitivity of the receptors on which the pollutants are deposited. National maps of atmospheric S and N emissions and deposition are provided in Maps A through D as context for subsequent network data presentations. Maps A and B show county level emissions of total S and total N for the year 2002. Maps C and D show total S and total N deposition, again for the year 2002. There are 11 parks in the Sonoran Desert Network. Two of them are larger than 100 square miles: Organ Pipe Cactus (ORPI) and Saguaro (SAGU).
英文关键词	Atmospheric Chemistry Sulphur cycle Ecosystem sensitivity Pollutant exposure Evaluation Acidic deposition Surface water resources Sensitive soil Acidification National Parks Sulfur Nitrogen United States Deposition Nitrates S
出版年	2011
语种	英语
国家	United States
URL	http://r.cnki.net/KCMS/detail/detail.aspx?DbCode=KJBG&dbname=KJBGW&filename=59fcda1131c97d1d54ab7d33
来源机构	National Park Service
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/273797
推荐引用方式 GB/T 7714	Sullivan, T. J,McPherson, G. T,McDonnell, T. C,et al. Evaluation of the Sensitivity of Inventory and Monitoring National Parks to Acidification Effects from Atmospheric Sulfur and Nitrogen Deposition. Sonoran Desert Network (SODN).,2011.