Co-limitation of N and P is more prevalent in the Qinghai-Tibetan Plateau grasslands.

ABSTRACT:

Introduction

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.

Methods

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.

Results

The findings show that plant biomass in QTP grasslands is

SUBMITTER: Dong K 

PROVIDER: S-EPMC9975565 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature