摘要
论述了不同降水年份(1997年干旱、1998年降水正常)及不同改良措施对典型草原退化草地植物群落的影响,结果表明,各种退化草地改良技术对退化草地的植物群落均有明显的效果,改良草地的第一性生产力增加,植物群落结构发生变化,优良牧草增加,植物群落的盖度、高度增加明显。
The research group selected the typical degraded grassland in the semiarid steppe area of inner Mongolia of china,undertook the improvement methods such as fencing,losing soil,shallow ploughing,reseeding.After the 4 years,the results indicated that all these methods have showed remarkable effects in different extents,especially the fencing,losing soil,shallow plowing .These experimental results have provided the scientific foundation for improving degraded grassland.
出处
《四川草原》
2005年第5期1-5,共5页
Journal of Sichuan Grassland
关键词
典型草原退化草地
改良技术
植物群落
Typical degraded grassland
Improvement methods
Vegetation community