Nitrogen Addition Increases the Sensitivity of Photosynthesis to Drought and Re-watering Differentially in C₃ Versus C₄ Grass Species.

ABSTRACT: Global change factors, such as variation in precipitation regimes and nitrogen (N) deposition, are likely to occur simultaneously and may have profound impacts on the relative abundance of grasses differing in functional traits, such as C₃ and C₄ species. We conducted an extreme drought and re-watering experiment to understand differences in the resistance and recovery abilities of C₃ and C₄ grasses under different N deposition scenarios. A C₃ perennial grass (Leymus chinensis) and two C₄ grasses (annual species Chloris virgata and perennial species Hemarthria altissima) that co-occur in Northeast China were selected as experimental plants. For both C₃ and C₄ grasses, N addition cau

SUBMITTER: Zhong S 

PROVIDER: S-EPMC6616207 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature