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Grassland productivity limited by multiple nutrients

文献类型：期刊论文

作者Fay, Philip A.1; Prober, Suzanne M.2; Harpole, W. Stanley3,4,5,6; Knops, Johannes M. H.7; Bakker, Jonathan D.8; Borer, Elizabeth T.9; Lind, Eric M.9; MacDougall, Andrew S.10; Seabloom, Eric W.9; Wragg, Peter D.9
刊名nature plants
出版日期2015-07-06
卷号1期号:7
中文摘要terrestrial ecosystem productivity is widely accepted to be nutrient limited(1). although nitrogen (n) is deemed a key determinant of aboveground net primary production (anpp) 2,3, the prevalence of co-limitation by n and phosphorus (p) is increasingly recognized(4-8). however, the extent to which terrestrial productivity is co-limited by nutrients other than n and p has remained unclear. here, we report results from a standardized factorial nutrient addition experiment, in which we added n, p and potassium (k) combined with a selection of micronutrients (k+mu), alone or in concert, to 42 grassland sites spanning five continents, and monitored anpp. nutrient availability limited productivity at 31 of the 42 grassland sites. and pairwise combinations of n, p, and k+mu co-limited anpp at 29 of the sites. nitrogen limitation peaked in cool, high latitude sites. our findings highlight the importance of less studied nutrients, such as k and micronutrients, for grassland productivity, and point to significant variations in the type and degree of nutrient limitation. we suggest that multiple-nutrient constraints must be considered when assessing the ecosystem-scale consequences of nutrient enrichment.
英文摘要terrestrial ecosystem productivity is widely accepted to be nutrient limited(1). although nitrogen (n) is deemed a key determinant of aboveground net primary production (anpp) 2,3, the prevalence of co-limitation by n and phosphorus (p) is increasingly recognized(4-8). however, the extent to which terrestrial productivity is co-limited by nutrients other than n and p has remained unclear. here, we report results from a standardized factorial nutrient addition experiment, in which we added n, p and potassium (k) combined with a selection of micronutrients (k+mu), alone or in concert, to 42 grassland sites spanning five continents, and monitored anpp. nutrient availability limited productivity at 31 of the 42 grassland sites. and pairwise combinations of n, p, and k+mu co-limited anpp at 29 of the sites. nitrogen limitation peaked in cool, high latitude sites. our findings highlight the importance of less studied nutrients, such as k and micronutrients, for grassland productivity, and point to significant variations in the type and degree of nutrient limitation. we suggest that multiple-nutrient constraints must be considered when assessing the ecosystem-scale consequences of nutrient enrichment.
WOS标题词science & technology ; life sciences & biomedicine
类目[WOS]plant sciences
研究领域[WOS]plant sciences
关键词[WOS]nitrogen limitation ; terrestrial ecosystems ; co-limitation ; phosphorus ; responses ; deposition ; plant ; biodiversity ; impacts ; ecology
收录类别SCI
语种英语
WOS记录号WOS:000364406600001
源URL[http://ir.nwipb.ac.cn/handle/363003/5536]  
专题西北高原生物研究所_中国科学院西北高原生物研究所
作者单位1.USDA ARS, Grassland Soil & Water Res Lab, Temple, TX 76502 USA
2.CSIRO Land & Water Flagship, Wembley, WA 6913, Australia
3.Iowa State Univ, Dept Ecol Evolut & Organismal Biol, Ames, IA 50011 USA
4.German Ctr Integrat Biodivers Res iDiv, D-04103 Leipzig, Germany
5.UFZ Helmholtz Ctr Environm Res, Dept Physiol Divers, D-04318 Leipzig, Germany
6.Univ Halle Wittenberg, Inst Biol, D-06108 Halle, Saale, Germany
7.Univ Nebraska, Sch Biol Sci, Lincoln, NE 68588 USA
8.Univ Washington, Sch Environm & Forest Sci, Seattle, WA 98195 USA
9.Univ Minnesota, Dept Ecol Evolut & Behav, St Paul, MN 55108 USA
10.Univ Guelph, Dept Integrat Biol, Guelph, ON N1G 2W1, Canada
推荐引用方式
GB/T 7714		 Fay, Philip A.,Prober, Suzanne M.,Harpole, W. Stanley,et al. Grassland productivity limited by multiple nutrients[J]. nature plants,2015,1(7).
APA Fay, Philip A..,Prober, Suzanne M..,Harpole, W. Stanley.,Knops, Johannes M. H..,Bakker, Jonathan D..,...&Yang, Louie H..(2015).Grassland productivity limited by multiple nutrients.nature plants,1(7).
MLA Fay, Philip A.,et al."Grassland productivity limited by multiple nutrients".nature plants 1.7(2015).

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来源：西北高原生物研究所

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