内蒙古典型草原退化原因的初探

Degradation causes of typical steppe in Inner Mongolia

分析了内蒙古典型草原退化的原因 ,认为内蒙古典型草原退化的最根本原因是系统相悖 ,表现在 :1)多年来牲畜数量一直大大超出了天然草地的承载能力 ;2 )长期以来过冬牲畜数量与天然草地饲草生产的季节特点不协调 ;3)草地资源的不合理利用。其次 ,该区近年来的气候变化 (尤其是高温和干旱 )加剧了该区草原的退化过程。

System discordance is considered the most fundamenta l reason for degradation of typical steppe in Inner Mongolia. It is reflected in the number of livestock being well beyond the carrying capacity of the grassland for many years, the number of livestock in winter not being in harmony with the seasonal characteristics of forage production, and the irrational utilization o f grassland resources. Also, climate change in recent years, in particular high temperature and aridity, has accelerated the process of grassland degradation.