论文部分内容阅读
一、一般情况在世界,苏美两大强国在植物资源的开发利用史上有不同的途径。苏联幅员辽阔,气候地理复杂,植物种类繁多。维管束植物有1.6万种。苏联注重系统了解本国资源。拉林等人从1923年开始系统考察整理全苏的牧草资源。到1956年出版了包括4370种的饲用植物三卷专著。同时苏联著名植物学家瓦维洛夫从1920年开始组织近二百次考察,先后
First, the general situation In the world, the Soviet Union and the United States have two major powers in the history of plant resources development and utilization of different ways. The vast territory of the Soviet Union, the complex climate and geography, a wide range of plants. There are 16,000 vascular plants. The Soviet Union pays attention to systematically understanding its own resources. Lalin and others systematically inspected and sorted the pasture resources of the whole province from 1923. By 1956 three volumes of 4370 species of forage plants were published. At the same time, the famous Soviet botanicalist Vavilov organized nearly 200 visits since 1920,