Forest productivity refers to the rate at which forests grow and produce biomass, or organic material. It is a key component of forest ecosystem functioning and plays a critical role in providing various ecosystem services, such as carbon sequestration, habitat for wildlife, and timber production. Researchers studying forest productivity typically investigate the factors that influence forest growth, such as climate, soil quality, and species composition, in order to better understand and manage forest ecosystems. This research area is important for informing sustainable forest management practices and mitigating the impacts of climate change.