气候变化领域集成服务门户(CCPortal): Phosphorus accumulates faster than nitrogen globally in freshwater ecosystems under anthropogenic impacts

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DOI	10.1111/ele.12658
	Phosphorus accumulates faster than nitrogen globally in freshwater ecosystems under anthropogenic impacts
	Yan Z.; Han W.; Peñuelas J.; Sardans J.; Elser J.J.; Du E.; Reich P.B.; Fang J.
发表日期	2016
ISSN	1461-023X
EISSN	1461-0248
卷号	19 期号:10
英文摘要	Combined effects of cumulative nutrient inputs and biogeochemical processes that occur in freshwater under anthropogenic eutrophication could lead to myriad shifts in nitrogen (N):phosphorus (P) stoichiometry in global freshwater ecosystems, but this is not yet well-assessed. Here we evaluated the characteristics of N and P stoichiometries in bodies of freshwater and their herbaceous macrophytes across human-impact levels, regions and periods. Freshwater and its macrophytes had higher N and P concentrations and lower N : P ratios in heavily than lightly human-impacted environments, further evidenced by spatiotemporal comparisons across eutrophication gradients. N and P concentrations in freshwater ecosystems were positively correlated and N : P was negatively correlated with population density in China. These results indicate a faster accumulation of P than N in human-impacted freshwater ecosystems, which could have large effects on the trophic webs and biogeochemical cycles of estuaries and coastal areas by freshwater loadings, and reinforce the importance of rehabilitating these ecosystems. © 2016 John Wiley & Sons Ltd/CNRS.
英文关键词	Accumulation; anthropogenic impacts; biogeochemistry; decoupling of nitrogen and phosphorus cycles; freshwater ecosystems; global patterns; imbalance; macrophytes; stoichiometry; waterbodies
学科领域	fresh water; nitrogen; phosphorus; water pollutant; chemistry; China; ecosystem; human activities; water pollutant; water pollution; China; Ecosystem; Fresh Water; Human Activities; Nitrogen; Phosphorus; Water Pollutants, Chemical; Water Pollution
语种	英语
scopus关键词	fresh water; nitrogen; phosphorus; water pollutant; chemistry; China; ecosystem; human activities; water pollutant; water pollution; China; Ecosystem; Fresh Water; Human Activities; Nitrogen; Phosphorus; Water Pollutants, Chemical; Water Pollution
来源期刊	Ecology letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118480
作者单位	Department of Ecology, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China, China; College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China, China; CSIC, Global Ecology Unit CREAF-CSIC-UAB, Cerdanyola del Vallès, 08193, Catalonia, Spain; CREAF, Cerdanyola del Vallès, 08193, Catalonia, Spain; School of Life Sciences, Arizona State University, Tempe, AZ, 85287, USA, United States; College of Resources Science & Technology, and State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing, 100875, China; Department of Forest Resources, University of Minnesota, St. Paul, MN, 55108, USA, United States; Hawkesbury Institute for the Environment, Western Sydney University, Penrith, 2751, NSW, Australia, Australia
推荐引用方式 GB/T 7714	Yan Z.,Han W.,Peñuelas J.,et al. Phosphorus accumulates faster than nitrogen globally in freshwater ecosystems under anthropogenic impacts[J],2016,19(10).
APA	Yan Z..,Han W..,Peñuelas J..,Sardans J..,Elser J.J..,...&Fang J..(2016).Phosphorus accumulates faster than nitrogen globally in freshwater ecosystems under anthropogenic impacts.Ecology letters,19(10).
MLA	Yan Z.,et al."Phosphorus accumulates faster than nitrogen globally in freshwater ecosystems under anthropogenic impacts".Ecology letters 19.10(2016).