全球变化与植被

本文讨论了全球变化与植被的相互依赖与制约关系，以黄土高原为例，研究了古气候与植被之间的关系以及青藏高原隆升对黄河流域生态环境的改造，分析了人类活动对被的破坏给黄土高原生态系统的影响，提出了植被差异与变迁是引起气候快速和区域变化的主要原因。

THE GLOBAL CHANGE AND VEGETATION

It is known that vegetation on the earth is dependent on and restricted by the global changes, meanwhile, to some extent, vice versa. Taking the Loess Plateau as an example, we investigated systematically the relationship between paleoclimate and vegetation, the influence of Tibet Plateau rising on the ecological environments of Yellow River attchment, as well as the impact of human being activities on the ecological environments of the Loess Plateau. It is concluded that the rapid climatic variations and local changes were caused by the vegetation divergences and alternations.