The study looked at how different plant species in a newly established reservoir area in China grow in response to soil nutrients and temperature. They found that some species grow faster than others, with Setaria viridis showing the highest growth rate. Echinochloa crusgalli had the lowest growth rate and was less affected by soil nutrients and temperature. Cynodon dactylon and Hemarthria altissima had high growth rates under specific soil conditions, but this advantage decreased at higher temperatures. The researchers discovered that the stem mass ratio was a key factor in determining the growth rate of the plants in this ecosystem.