The study analyzed how vegetation in the Three-River Headwaters region responded to climate change and human activity from 1998 to 2010. They found that vegetation density increased in the region during this time, with climate change having a bigger impact than human activity. Precipitation and temperature, especially in spring and autumn, were crucial for vegetation growth. Different types of vegetation responded differently to climate change, with alpine grasslands being the most affected. Overall, human activity had a positive effect on vegetation growth, but this effect decreased over time. The study suggests that short-term ecological projects may not be as effective as long-term planning for vegetation conservation.