在全面掌握南水北调中线工程水源地的生态环境现状与问题的基础上，采用生态足迹模型，对研究区可持续发展现状进行了实证分析。结果表明，研究期间水源地的生态足迹总量呈现波动上升趋势、人均生态承载力不断增加，生态赤字呈现先增加后下降的特点，但仍未出现生态盈余，表明水源地在研究期内处于不可持续发展状态。研究成果可为南水北调中线工程相关管理部门的生态建设工作提供参考。

Based on a comprehensive evaluation of the present situation and problems of the ecological environment at the water source area in the Middle Route of South-to-North Water Diversion Project, an empirical analysis of the sustainable development in the area was conducted using the ecological footprint model. The results showed that the total ecological footprint of the water source area has an increasing trend with fluctuations, the ecological carrying capacity per capita is also increasing, and the ecological deficit increases first but then decreases without ecological surplus, which indicates that the water source area is unsustainable during the research period. The findings can provide reference for the ecological construction of the relevant departments of South-to-North Water Diversion Project.