生态环境是近年人们愈来愈关注的向题 ,目前 ,已成为 2 1世纪世界性的课题之一。作为这一研究领域的重要组成部分 ,即对生态环境历史变迁的追本溯源 ,特别是对我国古代生态环境问题的探讨 ,实际上 ,在与古代生态环境最近密的历史地理学研究领域 ,一直未曾被人们所忽视。不仅如 The ecological environment is an issue that people are paying more and more attention in recent years. At present, it has become one of the worldwide issues in the 21st century. As an important part of this research field, that is to say, it traces the origin of the historical changes of the ecological environment, especially the discussion on the ecological environment in ancient China. In fact, in the field of historical geography which is closest to the ancient ecological environment, Never been neglected by people. Not only