【摘要】 本文作者在阅读文献的基础上,对苏联干旱区研究的动态作了系统论述。本文可分为以下部分:苏联干旱区概况;干旱区研究的历史回顾;基础理论研究;实践技术研究与存在的问题。更多还原

【Abstract】 Former USSR has arid and semiarid area as vast as 2500000km~2, accountingfor 15% of total land. Researches on arid land have been carried out for along time and many brilliant achievements has been reached. The paper,based on the documents read, systematically expounds the USSR trends inarid area researches, including following 5 parts: 1. General situation of USSR arid area. 2. Historical recollections for arid region researches. 3. Basic theory researches. 4. Practise techniques researches. 5. Existing problems.更多还原