Simulated climate warming and nitrogen deposition influence leaf traits and leaf trait spectrum in Solidago canadensis from China and North America
Temperature is a key factor that affects plant growth, and nitrogen (N) is an important resource for plant growth and photosynthesis. Changes in temperature and N may strongly influence the functional traits of invasive plants. The aim of this study was to predict the potential invasiveness of invasive plants in response to climate warming and atmospheric N deposition. We conducted a simulated warming and N deposition experiment at Chengdu. In this experiment, we selected Solidago canadensis from China and North America as the focal invader and set up four experimental treatments: 1) ambient, (2) warming (2degC above the ambient) (3) N addition (4 g N m a in the form of NH4NO3) and (4) warming plus N addition. We determined three leaf traits, leaf chlorophyll content, leaf area, and leaf dry matter content,