biostudies-literatureUnknown14Dong KNational Natural Science Foundation of ChinaNational College Students Innovation and Entrepreneurship Training Program<h4>Introduction</h4>Over the past three decades, the view of nutrient limitation has transferred from single-nutrient limitation to multiple-nutrient limitation. On the Qinghai-Tibetan Plateau (QTP), many nitrogen (N) and phosphorus (P) addition experiments have revealed different N- or P-limited patterns at many alpine grassland sites, whereas it is not clear what the general patterns of N and P limitation across the QTP grasslands.<h4>Methods</h4>We performed a meta-analysis, containing 107 publications, to assess how N and P constrained plant biomass and diversity in alpine grasslands across the QTP. We also tested how mean annual precipitation (MAP) and mean annual temperature (MAT) influence N and P limitations.<h4>Results</h4>The findings show that plant biomass in QTP grasslands isFrontiers in plant science1140462https://www.ebi.ac.uk/biostudies/studies/S-EPMC9975565biostudies-literatureCo-limitation of N and P is more prevalent in the Qinghai-Tibetan Plateau grasslands.PMC9975565Li WMa SDong KJiang MTang YfalseCo-limitation of N and P is more prevalent in the Qinghai-Tibetan Plateau grasslands.<h4>Introduction</h4>Over the past three decades, the view of nutrient limitation has transferred from single-nutrient limitation to multiple-nutrient limitation. On the Qinghai-Tibetan Plateau (QTP), many nitrogen (N) and phosphorus (P) addition experiments have revealed different N- or P-limited patterns at many alpine grassland sites, whereas it is not clear what the general patterns of N and P limitation across the QTP grasslands.<h4>Methods</h4>We performed a meta-analysis, containing 107 publications, to assess how N and P constrained plant biomass and diversity in alpine grasslands across the QTP. We also tested how mean annual precipitation (MAP) and mean annual temperature (MAT) influence N and P limitations.<h4>Results</h4>The findings show that plant biomass in QTP grasslands is2023-01-01T00:00:00Z20232026-03-17T15:43:39.701Z2025-02-19T02:21:33.254ZS-EPMC99755653687559610.3389/fpls.2023.1140462