Fast resource acquisition by plants was associated with greater stability in temperate grasslands in China and lower stability in alpine grasslands. The newly published peer-reviewed observational study combines field traits with satellite vegetation measures. Recovery after climate extremes had a positive association with those traits in both regions, showing that resistance during an extreme and recovery afterward follow different relationships.
Plants that acquire resources rapidly were linked to higher resistance and temporal stability in China’s temperate grasslands. Alpine grasslands showed the reverse association. The peer-reviewed observational study compared the Mongolian Plateau in China with the Tibetan Plateau. Pu Yan and colleagues used field measurements and satellite vegetation indices to examine how plant strategies relate to ecosystem behaviour.[1]
The team selected 10 sites in each region and surveyed 160 plots in July and August 2018. Traits from 343 plant species included leaf nutrients, leaf area and dry-matter content. These distinguished rapid resource acquisition from longer resource retention. Of the species present, 27 percent were annuals in temperate sites, compared with 9 percent in alpine sites.[1]
Recovery after extreme climate events was positively associated with acquisitive traits in both regions. This differs from resistance during extremes and stability over time. Models accounted for climate, soil and diversity, and independent datasets checked the direction of the relationships. The regional comparison still contains environmental differences, including grazing history and productivity; it supplies observational associations rather than a universal planting prescription.[1]
