Vegetation cover and related ecosystem services are key indicators for ecological restoration efforts. We simulated the dynamic changes of vegetation coverage and sand-fixing service in the Beijing–Tianjin sandstorm source control project area (BTSSCPA) in the period of 2000–2015 on the basis of long-term satellite data and the revised wind erosion equation. The response levels of sand-fixing service to vegetation coverage change were also analyzed. Results showed that the vegetation coverage in the BTSSCPA increased with fluctuation at an average rate of 0.34%/year, and the sand-fixing service was correspondingly enhanced with the average annual rate of 0.71%. Furthermore, the responsive levels of sand-fixing service to vegetation coverage change increased from 70% to 91%. We conclude that the vegetation restoration measures on sand-fixing gradually prevail and progress in the BTSSCPA. However, approximately 13% of the BTSSCPA still has poor responsivity and needs additional restoration measures for implementation. This research will contribute to quantify the effectiveness of vegetation restoration on ecosystem service enhancement, and identify the key implementation areas for further ecological restoration measures.

植被覆盖度和相关的生态系统服务是生态恢复努力的关键指标。我们根据长期卫星数据和经修订的风蚀方程，模拟了2000年至2015年京津沙尘暴源控制项目区（BTSSCPA）的植被覆盖和固沙服务的动态变化。还分析了固沙服务对植被覆盖度变化的响应程度。结果表明，BTSSCPA的植被覆盖率以年均0.34％的速度增加，而固沙服务以年均0.71％的速度得到相应的增强。此外，固沙服务对植被覆盖度变化的响应水平从70％增加到91％。我们得出的结论是，防沙治沙的植被恢复措施在BTSSCPA中逐渐盛行并取得了进展。但是，大约13％的BTSSCPA仍然具有较差的响应能力，需要其他恢复措施来实施。这项研究将有助于量化植被恢复对增强生态系统服务的有效性，并确定进一步生态恢复措施的关键实施领域。