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在分析我国西部自然生态环境特点的基础上，运用生态学原理和方法，对我国西部进行生态区域划分。共将我国西部划分为７个一级区、２２个二级区。并在二级区的基础上，对每一个生态区的特点、发展和保护对策进行了论述。
Based on the analysis of the characteristics of the natural eco-environment in western China and the application of ecological principles and methods, the eco-regional division of western China is carried out. The western part of our country is divided into 7 first-level districts and 22 second-level districts. On the basis of the secondary zone, the characteristics, development and protection measures of each ecological zone are discussed.