库姆塔格沙漠周边土地荒漠化成因及其治理对策--以敦煌市为例

Factors and countermeasures of desertification in Dunhuang city

通过实地调查和收集资料,对敦煌市近30年的气候变化,人口变迁,水土资源,以及社会经济发展变化等进行了分析,探讨了敦煌市荒漠化影响因素,提出了合理的治理对策。分析结果表明:近30年来气候环境变化对敦煌市荒漠化影响较小,而人口不断增加,社会经济持续发展对环境、水土资源干预力度加大是造成荒漠化危害程度加剧的主要原因之一。过去的30年中无论是国内生产总值还是人均收入都有了新的飞跃,但是维系绿洲生存发展的生态环境却受到严重破坏。控制人口增长,加强生态环境建设,合理有效利用现有水土资源是维持绿洲长期稳定发展的前提和基础。

Development situation of social economy, water and land resources and population change in Dunhuang city were studied based on field work and gathered materials. Influencing factors of desertification were discussed, and reasonable countermeasures were put forward. The results showed that impacts of climatic and environment change on dexertification of Dunhuang city was weak in past 30 years, but environment, water and land resources, industry and agriculture rapid development ,sustained increase of population in recent years were regarded as major influencing factors. The environment that maintain oasis existing and developing was grievous destroyed. Controlling population rapid increasing, intensify ecological environment construction, reasonable and effective water and land resources use are the prerequisite and foundation of oasis long continue development.