Nitrogen deposition threatens species richness of grasslands across Europe

被引:315
|
作者
Stevens, Carly J. [1 ,2 ]
Dupre, Cecilia [3 ]
Dorland, Edu [4 ]
Gaudnik, Cassandre [5 ]
Gowing, David J. G. [1 ]
Bleeker, Albert [6 ]
Diekmann, Martin [3 ]
Alard, Didier [5 ]
Bobbink, Roland [7 ]
Fowler, David [8 ]
Corcket, Emmanuel [5 ]
Mountford, J. Owen [9 ]
Vandvik, Vigdis [10 ]
Aarrestad, Per Arild [11 ]
Muller, Serge [12 ]
Dise, Nancy B. [13 ]
机构
[1] Open Univ, Dept Life Sci, Milton Keynes MK7 6AA, Bucks, England
[2] Univ Lancaster, Lancaster Environm Ctr, Lancaster LA1 4YQ, England
[3] Univ Bremen, Inst Ecol, FB 2, DE-28359 Bremen, Germany
[4] Univ Utrecht, Sect Landscape Ecol, Dept Geobiol, NL-3508 TB Utrecht, Netherlands
[5] Univ Bordeaux 1, INRA, Equipe Ecol Communautes, UMR Biodivers Genes & Communities 1202, F-33405 Talence, France
[6] Energy Res Ctr Netherlands, Dept Air Qual & Climate Change, NL-1755 ZG Petten, Netherlands
[7] Radboud Univ Nijmegen, B WARE Res Ctr, NL-6525 ED Nijmegen, Netherlands
[8] NERC Ctr Ecol & Hydrol, Penicuik EH26 0QB, Midlothian, Scotland
[9] NERC Ctr Ecol & Hydrol, Wallingford OX10 8BB, Oxon, England
[10] Univ Bergen, Dept Biol, N-5020 Bergen, Norway
[11] Norwegian Inst Nat Res, NO-7485 Trondheim, Norway
[12] Univ Paul Verlaine, LIEBE, CNRS, UFR Sci FA,UMR 7146, F-57070 Metz, France
[13] Manchester Metropolitan Univ, Dept Environm & Geog Sci, Manchester M1 5GD, Lancs, England
关键词
Acid grasslands; Acidification; Atmospheric nitrogen deposition; Soil pH; Species richness; ATMOSPHERIC NITROGEN; DIVERSITY; BIODIVERSITY; VEGETATION; GRADIENT; IMPACTS; TRENDS; UK;
D O I
10.1016/j.envpol.2010.06.006
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Evidence from an international survey in the Atlantic biogeographic region of Europe indicates that chronic nitrogen deposition is reducing plant species richness in acid grasslands. Across the deposition gradient in this region (2-44 kg N ha(-1) yr(-1)) species richness showed a curvilinear response, with greatest reductions in species richness when deposition increased from low levels. This has important implications for conservation policies, suggesting that to protect the most sensitive grasslands resources should be focussed where deposition is currently low. Soil pH is also an important driver of species richness indicating that the acidifying effect of nitrogen deposition may be contributing to species richness reductions. The results of this survey suggest that the impacts of nitrogen deposition can be observed over a large geographical range. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2940 / 2945
页数:6
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