Two Dominant Herbaceous Species Have Different Plastic Responses to N Addition in a Desert Steppe.

ABSTRACT: Nitrogen (N) deposition rates are increasing in the temperate steppe due to human activities. Understanding the plastic responses of plant dominant species to increased N deposition through the lens of multiple traits is crucial for species selection in the process of vegetation restoration. Here, we measured leaf morphological, physiological, and anatomical traits of two dominant species (Stipa glareosa and Peganum harmala) after 3-year N addition (0, 1, 3, and 6 g N m^-2 year^-1, designated N0, N1, N3, and N6, respectively) in desert steppe of Inner Mongolia. We separately calculated the phenotypic plasticity index (PI) of each trait under different N treatments and the mean phenotypic plasticity index (MPI) of per species. The results showed that N addi

SUBMITTER: Guo A 

PROVIDER: S-EPMC9087737 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature