呼伦贝尔草原沙化现状及防治对策

综合分析了呼伦贝尔草原沙漠化研究的主要成果,认为该区沙源丰富,是东北地区生态环境最脆弱的地区之一,沙漠化土地面积正在快速增长,沙漠化和生态环境的恶化逐步加剧;沙化的生成与发展是气候暖干化、干旱极端气候事件和人类扰动共同作用的结果;在此基础上提出了治理对策主要是人工增雨增加沙化区降水量、发展生态畜牧业、开发与保护草原并举、建立沙地定位监测、多学科各部门联合防沙治沙和以重点工程项目带动治沙事业。

The Hulunbei''''er prairie sand present situation draws back and the preventing and controlling countermeasure

Development trend analysis using weather station data(1961-2005) and six monthly temperatures,precipitation(1801-2004),as well as the 200-year drought,desertification was used to assess the effects of climate change and human activities on desertification of two areas of the Hulunbei'er grasslands.It showed that the growth and development of arid and dry climate warming was the result of human disturbance.Hulunbei'er grassland desertification area increased by 35.2% from 1994 to 1999 and by 32.3% from 1999 to 2004,an annual rate degradation rate of 1.35%.Artificial rain to give a major increase in rainfall in sandy areas is a major counter measure which would allow the development of eco-agriculture with both development and protection of grasslands from desertification.