Constrained preferences in nitrogen uptake across plant species and environments

[Leaf nitrogen and phosphorus stoichiometry across 654 terrestrial plant species in NSTEC].

Stoichiometry of leaf N and P is a characteristic of plant to adapt to environment, and can provide data for process-based modeling at large scale. Leaf nitrogen and phosphorus stoichiometry of NSTEC terrestrial plants were studied based on a NSTEC data set including leaf nitrogen and phosphorus observations for 654 plant species at 168 sites. The results showed that leaf nitrogen and phosphoru...

Preferences for different nitrogen forms by coexisting plant species and soil microbes.

The growing awareness that plants might use a variety of nitrogen (N) forms, both organic and inorganic, has raised questions about the role of resource partitioning in plant communities. It has been proposed that coexisting plant species might be able to partition a limited N pool, thereby avoiding competition for resources, through the uptake of different chemical forms of N. In this study, w...

Preferences for Different Nitrogen Forms by Coexisting Plant Species and Soil Microbes: Comment

Plasticity in nitrogen uptake among plant species with contrasting nutrient acquisition strategies in a tropical forest.

Nitrogen (N) availability influences the productivity and distribution of plants in tropical montane forests. Strategies to acquire soil N, such as direct uptake of organic compounds or associations with root symbionts to enhance N acquisition in exchange for carbon (C), may facilitate plant species coexistence and ecosystem N retention. Alternatively, rapid microbial turnover of soil N forms i...

Plant nitrogen uptake drives responses of productivity to nitrogen and water addition in a grassland

Increased atmospheric nitrogen (N) deposition and altered precipitation regimes have profound impacts on ecosystem functioning in semiarid grasslands. The interactions between those two factors remain largely unknown. A field experiment with N and water additions was conducted in a semiarid grassland in northern China. We examined the responses of aboveground net primary production (ANPP) and p...