摘要
针对西北干旱区特定的生态环境条件 ,通过凝结水对沙生植物作用的分析以及地下水位埋深对植物生长和土壤盐渍化影响的分析 ,探讨了地下水对生态环境的控制作用 ,认为地下水埋深及包气带水分运动状况 ,是主要生态环境指标 ,保持合理的生态地下水位是防治植物死亡和土地荒漠化的关键 ;维持适度的地下水位埋深 ,可以控制土壤水盐运移和均衡 ,达到改良土壤和改善地质生态环境的目的。文中还探讨了塔里木河和玛纳斯河流域水资源开发利用对生态环境的影响。
Ecological environment related to water resources is the most important problem for development of Northwest China Groundwater is main part of water resources and plays an important role in water supply and control of ecological environment in Northwest China Based on the analysis of the effect of condensation water on the growth of plants and the influence of the depth to groundwater on the growth of plants and degree of salty soil, this paper deals with the control process of groundwater on the ecological environment It shows that the depth to groundwater is the main factor controlling the water balance and the movement of water and salt in vadose zone So maintaining suitable groundwater table can prevent from land desertification and vegetation languishment As examples, the ecological environment changes due to the water resources development in Tarim River basin and Manas River basin, Xinjiang province are discussed
出处
《地学前缘》
EI
CAS
CSCD
2001年第1期191-196,共6页
Earth Science Frontiers
基金
国家"九五"重点科技攻关资助项目!( 96912 0 10 3 )
国家重点基础研究发展规划 ( 973 )资助项目!(G19990 43 6)
