摘要：Climate change is increasingly driving fundamental shifts in ecosystems, land use, and human livelihoods. Because of these rapid shifts, some conventional adaptation strategies may have limited success in reducing the impact of climate change. In some circumstances, there will be a need for considering transformative changes as part of adaptation strategies that can provide long-term benefits and address the root causes of vulnerability. However, to date, there is limited understanding of how societies respond to, or drive, transformative changes in social-ecological systems due to climate change impact. We reviewed 60 empirical case studies of shifts in trajectories of social-ecological systems in tropical and subtropical countries that were driven by climate change to identify how societies responded to these shifts and the extent to which societies used transformative adaptation as part of this response. In the case studies, we identified three types of shifts driven by climate change depending on whether the shift occurred in the ecological, social, or social-ecological system. Climate change shifted the trajectories of social-ecological systems by altering the feedback loops connecting soil, water, or vegetation conditions with people's livelihoods and well-being. In response to these shifts, people adjusted land use policies and practices, but only one-quarter of the reported adaptation actions included transformative adaptation. A more holistic understanding of how climate change modifies interactions in social-ecological systems and leads to shifts in system trajectories could help identify appropriate adaptation responses, including transformative adaptation, that provide long-term and sustainable benefits.
