Long-term global change impacts on grasslands
Climate change is critically important, but it is not more important than changes in the composition of the atmosphere, land use, nitrogen deposition, and the abundance of invasives. For the past decades, the Jasper Ridge Global Change Experiment (JRGCE) has been one of the community’s premier research sites. Located on the campus of Stanford University, JRGCE is a long-term manipulation experiment to explore the responses of grassland ecosystems to realistic global changes, including warming, elevated atmospheric CO2, altered precipitation, and nitrogen deposition. Taking advantage of the small size and short longevity of the dominant plants in California annual grassland, JRGCE has explored whole ecosystem responses to a wide range of global change treatments, emphasizing consequences of multi-generation responses of plant, microbial, and insect populations. In its current phase, JRGCE is examining the interaction of global changes, restoration, disturbance by wildfire, and resistance to invasives.