NDLI: Nitrogen deposition promotes phosphorus uptake of plants in a semi-arid temperate grassland

Content Provider	Springer Nature Link
Author	Long, Min Wu, Hong Hui Smith, Melinda D. La Pierre, Kimberly J. Lü, Xiao Tao Zhang, Hai Yang Han, Xing Guo Yu, Qiang
Copyright Year	2016
Abstract	Nitrogen (N) deposition greatly influences ecosystem processes through the alteration of plant nutrition; however, there is limited understanding about the effects of phosphorus (P) inputs, especially within the backdrop of N deposition.Here we investigated the plant stoichiometric responses to P addition under both ambient conditions and with N addition in a temperate grassland in Inner Mongolia over a two-year period.The effects of P addition on foliar nutrition and stoichiometric ratios were highly dependent on the presence of N supply, in that P addition showed no significant impacts on foliar N or P concentrations (or pools in community biomass) or N:P under ambient N conditions, but enhanced foliar N in dominant species and foliar P in almost all species (and pools in community biomass) with N addition. These results may be explained by P addition significantly changing the soil properties (soil pH and available P) when applied in combination with N additions. Moreover, there was no biomass response to nutrient additions.Our results suggest that N deposition may enhance the absorption of additional P by plants in semi-arid grasslands, and that P limitation with increased N deposition might be less important for limiting plant growth than previously anticipated.
Starting Page	475
Ending Page	484
Page Count	10
File Format	PDF
ISSN	0032079X
Journal	Plant and Soil
Volume Number	408
Issue Number	1-2
e-ISSN	15735036
Language	English
Publisher	Springer International Publishing
Publisher Date	2016-08-20
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Ecological stoichiometry N addition P addition N:P Grassland ecosystem P uptake Plant Sciences Soil Science & Conservation Plant Physiology Ecology
Content Type	Text
Resource Type	Article
Subject	Soil Science Plant Science

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