globalchange  > 气候减缓与适应
DOI: 10.1111/ele.12658
Scopus记录号: 2-s2.0-85027922638
论文题名:
Phosphorus accumulates faster than nitrogen globally in freshwater ecosystems under anthropogenic impacts
作者: Yan Z.; Han W.; Peñuelas J.; Sardans J.; Elser J.J.; Du E.; Reich P.B.; Fang J.
刊名: Ecology letters
ISSN: 14610248
EISSN: 1461-0248
出版年: 2016
卷: 19, 期:10
起始页码: 1237
结束页码: 1246
语种: 英语
英文关键词: Accumulation ; anthropogenic impacts ; biogeochemistry ; decoupling of nitrogen and phosphorus cycles ; freshwater ecosystems ; global patterns ; imbalance ; macrophytes ; stoichiometry ; waterbodies
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
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.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107721
Appears in Collections:气候减缓与适应

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作者单位: Department of Ecology, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China; College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, 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; 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; Hawkesbury Institute for the Environment, Western Sydney University, Penrith, 2751, NSW, Australia

Recommended Citation:
Yan Z.,Han W.,Peñuelas J.,et al. Phosphorus accumulates faster than nitrogen globally in freshwater ecosystems under anthropogenic impacts[J]. Ecology letters,2016-01-01,19(10)
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