NDLI: Nitrate leaching as a function of plant community richness and composition, and the scaling of soil nutrients, in a restored temperate grassland

Content Provider	Springer Nature Link
Author	Bingham, Marcus A. Biondini, Mario
Copyright Year	2010
Abstract	Two, two-factor experiments manipulated species and functional form plant richness and the spatial scaling of either nitrogen (N) or phosphorous (P) in restored tallgrass prairie in North Dakota, USA. Nitrate (NO$_{3}$ $^{−}$) leaching was measured in these plots and analyzed for its response to the treatment factors and measured plant community parameters. Nitrate extracted from anion exchange resin was regressed against the first principal component of species and functional form richness, the spatial scaling of N or P, the measured biomass of the functional forms used and the plot values for plant parameters based on weighted averages by species biomass. The treatments applied in the N and P experiments were 1, 2, 5, 10, or 20 plant species taxa, and the application of fertilizer in a random fractal pattern with either fine-scale or coarse-scale heterogeneity. Nitrate leaching decreased with plant diversity and increased by a factor of two going from fine-scale to coarse-scale N. It was also related to a number of plant functional parameters, and was positively correlated with the biomass of late successional C$_{3}$ grasses (Koeleria cristata (Lam.) Beauv., Poa pratensis L., Stipa comata Trin. & Rupr., and Stipa viridula Trin.), which are known from previous studies to have negative mycorrhizal responsiveness and are characterized by high root lateral spread per unit of root biomass. Our results show that while plant diversity has a highly significant influence on plant community uptake of NO$_{3}$ $^{−}$, this effect is mediated by the scaling of soil N and the functional traits of the species comprising the plant assemblage.
Starting Page	413
Ending Page	422
Page Count	10
File Format	PDF
ISSN	13850237
Journal	Plant Ecology
Volume Number	212
Issue Number	3
e-ISSN	15735052
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-08-31
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Nutrient cycling Plant community composition Functional form diversity Northern tallgrass prairie restoration Species diversity Temperate grassland Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Ecology Plant Science

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Nitrate leaching as a function of plant community richness and composition, and the scaling of soil nutrients, in a restored temperate grassland

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