Effects of N and P enrichment on plant photosynthetic traits in alpine steppe of the Qinghai-Tibetan Plateau.

ABSTRACT:

Background

N (nitrogen) and P (phosphorus) play important roles in plant growth and fitness, and both are the most important limiting factors that affect grassland structure and function. However, we still know little about plant physiological responses to N and P enrichment in alpine grassland of the Qinghai-Tibetan Plateau. In our experiment, five dominant common herbaceous species were selected and their photosynthetic parameters, leaf N content, and aboveground biomass were measured.

Results

We found that species-specific responses to N and P enrichment were obvious at individual level. N addition (72 kg Nha^-1 yr^-1), P addition (36 kg Pha^-1 yr^-1) and NP addition (72 kg Nha^-1 yr^-1and 36 kg P ha^-1

SUBMITTER: Shen H 

PROVIDER: S-EPMC9375904 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature