生态地理区域系统的比较研究

生态地理区域系统通过对代表自然界宏观生态系统的生物和非生物要素地理相关性的比较研究和综合分析，按照自然界的地理地带分异规律，划分或合并而形成不同等级的区域系统。用中国的研究与国外同类研究的比较，可以拓宽这一领域的思路，便于在这一领域与国外的学者使用相似的科学语言进行学术交流，使中国这一领域的研究走向世界。本文从生态地理区域系统的发展过程、等级单位、指标体系与表达方法，区域划分等方面将中国有代表性的生态地理区域系统与国外同类研究进行比较，认为中外的研究有许多共同之处，如目标、研究内容和服务对象与环境、生态、全球变化等联系在一起，其中与美国R．Bailey所划分的美国、北美和全球生态地理区域更为接近，在等级系统、指标体系、表达方式到划分结果有近似之处。地域的差异，指标使用的不同，制图过程和表达方式的差异造成了区域划分的差别，似可以通过野外实地生态类型的辨识来加以修订。

Comparative Study on Eco-geographic Regional Systems between China and USA

Eco-geographical region is a major ecosystem in geographic zonality. A hierarchical system, which is formed by division or combination of natural features based on geographic relativity and comparison of major ecosystem factors and geographic zonality, is called eco-geographic regional system. A comparison of the studies of this topic between Chinese and overseas scientists will enrich ideology of this field, facilitate academic exchange with understandable scientific language and introduce China's progress to the world. The authors compared both China's and overseas eco-geographic regional systems in development process, hierarchical units, delineating criteria, mapping procedures and regions. The results indicate that there are main common points in the subject, such as objectives, research contents and service objects connecting with environment, ecology and global change. Of the existing eco-regional systems, Robert G Bailey's systems of the United States, North America and the continent are comparatively close to China's system in hierarchical units, mapping procedure and regions.