气候变化领域集成服务门户(CCPortal): A coherent signature of anthropogenic nitrogen deposition to remote watersheds of the Northern Hemisphere

CCPortal

DOI	10.1126/science.1212267
	A coherent signature of anthropogenic nitrogen deposition to remote watersheds of the Northern Hemisphere
	Holtgrieve G.W.; Schindler D.E.; Hobbs W.O.; Leavitt P.R.; Ward E.J.; Bunting L.; Chen G.; Finney B.P.; Gregory-Eaves I.; Holmgren S.; Lisac M.J.; Lisi P.J.; Nydick K.; Rogers L.A.; Saros J.E.; Selbie D.T.; Shapley M.D.; Walsh P.B.; Wolfe A.P.
发表日期	2011
ISSN	0036-8075
起始页码	1545
结束页码	1548
卷号	334 期号:6062
英文摘要	Humans have more than doubled the amount of reactive nitrogen (Nr) added to the biosphere, yet most of what is known about its accumulation and ecological effects is derived from studies of heavily populated regions. Nitrogen (N) stable isotope ratios (15N:14N) in dated sediments from 25 remote Northern Hemisphere lakes show a coherent signal of an isotopically distinct source of N to ecosystems beginning in 1895 ± 10 years (±1 standard deviation). Initial shifts in N isotope composition recorded in lake sediments coincide with anthropogenic CO2 emissions but accelerate with widespread industrial Nr production during the past half century. Although current atmospheric Nr deposition rates in remote regions are relatively low, anthropogenic N has probably influenced watershed N budgets across the Northern Hemisphere for over a century.
英文关键词	carbon dioxide; nitrogen; reactive nitrogen species; anthropogenic effect; atmospheric deposition; atmospheric pollution; bioaccumulation; biosphere; carbon dioxide; carbon emission; isotopic ratio; lacustrine deposit; nitrogen; nitrogen isotope; Northern Hemisphere; stable isotope; watershed; article; biosphere; chemical composition; ecosystem; human; lake sediment; nitrogen deposition; Northern Hemisphere; priority journal; watershed
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/244051
作者单位	School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, United States; St. Croix Watershed Research Station, Science Museum of Minnesota, Marine on St. Croix, MN, United States; Limnology Laboratory, Department of Biology, University of Regina, Regina, SK, Canada; Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, WA, United States; Department of Biology, McGill University, Montreal, QC, Canada; Key Laboratory of Plateau Lake Ecology and Global Change, School of Tourism and Geography, Yunnan Normal University, Kunming, Yunnan, China; Departments of Geosciences and Biological Sciences, Idaho State University, Pocatello, ID, United States; Department of Earth and Ecosystem Sciences, Division of Geology, Lund University, Sweden; U.S. Fish and Wildlife Service, Togiak National Wildlife Refuge, Dillingham, AK, United States; Mountain Studies Institute, Silverton, CO, United States; Climate Change Institute, Uni...
推荐引用方式 GB/T 7714	Holtgrieve G.W.,Schindler D.E.,Hobbs W.O.,et al. A coherent signature of anthropogenic nitrogen deposition to remote watersheds of the Northern Hemisphere[J],2011,334(6062).
APA	Holtgrieve G.W..,Schindler D.E..,Hobbs W.O..,Leavitt P.R..,Ward E.J..,...&Wolfe A.P..(2011).A coherent signature of anthropogenic nitrogen deposition to remote watersheds of the Northern Hemisphere.Science,334(6062).
MLA	Holtgrieve G.W.,et al."A coherent signature of anthropogenic nitrogen deposition to remote watersheds of the Northern Hemisphere".Science 334.6062(2011).