论文部分内容阅读
内蒙古和世界性的植物界演化进程一样,自50多亿年前地球的形成,30多亿年前原始海生菌藻植物(Thallophyta)生命的首次出现,大致经历了以下五个发展阶段,才逐渐形成了今日的植被。
Like the evolution of the world’s plant kingdoms, Inner Mongolia developed its Earth for more than 5 billion years ago. The first appearance of primitive Thallophyta plants over 3 billion years ago went through roughly the following five stages of development. Gradually formed today’s vegetation.