Increasing water availability and facilitation weaken biodiversity-biomass relationships in shrublands.

ABSTRACT: Positive biodiversity-ecosystem-functioning (BEF) relationships are commonly found in experimental and observational studies, but how they vary in different environmental contexts and under the influence of coexisting life forms is still controversial. Investigating these variations is important for making predictions regarding the dynamics of plant communities and carbon pools under global change. We conducted this study across 433 shrubland sites in northern China. We fitted structural equation models (SEMs) to analyze the variation in the species-richness-biomass relationships of shrubs and herbs along a wetness gradient and general liner models (GLMs) to analyze how shrub or herb biomass affected the species-richness-biomass relationship of the other life form. We found that the positi

SUBMITTER: Guo Y 

PROVIDER: S-EPMC6850503 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature