grazing-management
Grazing management refers to the strategic control of livestock foraging patterns—including timing, intensity, and duration—to influence vegetation growth and land productivity. For plant science, it is critical because grazing pressure directly shapes plant community composition, root development, and regrowth capacity, offering insights into how plants adapt to defoliation stress. Understanding these dynamics helps researchers develop sustainable practices that balance forage plant health with long-term ecosystem resilience.
open_in_new WikipediaPubMed · 2026-07-08
A field experiment on the Qinghai-Xizang Plateau found that fertilizing grasslands with nitrogen destabilizes plant communities over time, mainly by reducing the richness of native fodder plants and lowering soil pH. Moderate grazing, by contrast, tended to support stability by preserving a diverse mix of functional native grasses, and the study identified a tipping-point ratio where native-to-traditional herbage balance either helps or stops helping community resilience.
Nitrogen addition reduced plant species richness and native herbage richness, producing a net negative effect on aboveground biomass stability despite increasing species asynchrony.
Grazing tended to improve community biomass stability by increasing native herbage richness and compositional stability, though the effect carried substantial uncertainty.
An ecological threshold of 0.86 for the native-to-traditional herbage biomass ratio was identified: below this value, stability declined as the ratio rose; above it, further increases in native herbage proportion yielded no additional stability benefit.