The article discusses research on the ecosystem services and ecological safety of China's main terrestrial ecosystems. In the study, they found out how ecosystems work and provide services like clean air and water. Scientists studied different regions in China to understand the country's overall ecosystem health. They also looked at the different services these ecosystems offer. The researchers were able to calculate the value of these services for the environment and human well-being. The project aims to continue studying these ecosystems in the future to protect them and ensure they stay healthy.