Tipping point of plant functional traits of Leymus chinensis to nitrogen addition in a temperate grassland.

ABSTRACT: It has widely been documented that nitrogen (N) enrichment stimulates plant growth and modifies plant functional traits in the terrestrial ecosystem. However, it remains unclear whether there are critical transitions or tipping points for the response of plant growth or traits to N enrichment, and how these responses differ to different N forms. We chose the native, perennial clonal grass, Leymus chinensis in Inner Mongolia steppe, and conducted a field experiment, in which six N addition rates (0, 2, 5, 10, 20, and 50 g N m^-2 year^-1) and five N compound types [NH₄NO₃, (NH₄)₂SO₄, NH₄HCO₃, CO(NH₂)₂, slow-release CO(NH₂)₂] are considered. Here,

SUBMITTER: Yang G 

PROVIDER: S-EPMC9428514 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature